Rule2023-11904

National Oil and Hazardous Substances Pollution Contingency Plan; Product Schedule Listing and Authorization of Use Requirements

Primary source

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Published
June 12, 2023
Effective
December 11, 2023

Issuing agencies

Environmental Protection Agency

Abstract

The Environmental Protection Agency (EPA or the Agency) is amending the requirements in Subpart J of the National Oil and Hazardous Substances Pollution Contingency Plan (NCP) that govern the use of dispersants, other chemicals and other spill mitigating substances when responding to oil discharges into jurisdictional waters of the United States. This action addresses the efficacy and toxicity of dispersants and other chemical and biological agents, as well as public, state, local, and federal officials' concerns regarding their use. Specifically, the Agency is amending the Subpart J regulatory requirements for the NCP Product Schedule in two distinct ways. First, the Agency is adding new listing criteria, revising the efficacy and toxicity testing protocols, and clarifying the evaluation criteria for removing products from the NCP Product Schedule. Second, the Agency is amending requirements for the authorities, notifications, and data reporting when using chemical or biological agents in response to oil discharges to Clean Water Act (CWA) section 311 jurisdictional waters and adjoining shorelines. These requirements are anticipated to encourage the development of safer and more effective spill mitigating products and better target the use of these products to reduce the risks of oil discharges and response technologies to human health and the environment. Further, the amendments are intended to ensure that On-Scene Coordinators (OSCs), Regional Response Teams (RRTs), and Area Committees (ACs) have sufficient information to support agent authorization of use decisions.

Full Text

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[Federal Register Volume 88, Number 112 (Monday, June 12, 2023)]
[Rules and Regulations]
[Pages 38280-38356]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-11904]



[[Page 38279]]

Vol. 88

Monday,

No. 112

June 12, 2023

Part III





Environmental Protection Agency





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40 CFR Parts 110 and 300





National Oil and Hazardous Substances Pollution Contingency Plan; 
Product Schedule Listing and Authorization of Use Requirements; Final 
Rule

Federal Register / Vol. 88, No. 112 / Monday, June 12, 2023 / Rules 
and Regulations

[[Page 38280]]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 110 and 300

[EPA-HQ-OPA-2006-0090; FRL-4526-01-OLEM]
RIN 2050-AE87


National Oil and Hazardous Substances Pollution Contingency Plan; 
Product Schedule Listing and Authorization of Use Requirements

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: The Environmental Protection Agency (EPA or the Agency) is 
amending the requirements in Subpart J of the National Oil and 
Hazardous Substances Pollution Contingency Plan (NCP) that govern the 
use of dispersants, other chemicals and other spill mitigating 
substances when responding to oil discharges into jurisdictional waters 
of the United States. This action addresses the efficacy and toxicity 
of dispersants and other chemical and biological agents, as well as 
public, state, local, and federal officials' concerns regarding their 
use. Specifically, the Agency is amending the Subpart J regulatory 
requirements for the NCP Product Schedule in two distinct ways. First, 
the Agency is adding new listing criteria, revising the efficacy and 
toxicity testing protocols, and clarifying the evaluation criteria for 
removing products from the NCP Product Schedule. Second, the Agency is 
amending requirements for the authorities, notifications, and data 
reporting when using chemical or biological agents in response to oil 
discharges to Clean Water Act (CWA) section 311 jurisdictional waters 
and adjoining shorelines. These requirements are anticipated to 
encourage the development of safer and more effective spill mitigating 
products and better target the use of these products to reduce the 
risks of oil discharges and response technologies to human health and 
the environment. Further, the amendments are intended to ensure that 
On-Scene Coordinators (OSCs), Regional Response Teams (RRTs), and Area 
Committees (ACs) have sufficient information to support agent 
authorization of use decisions.

DATES:  This final rule is effective on December 11, 2023.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-HQ-OPA-2006-0090. All documents in the docket are 
listed on the <a href="http://www.regulations.gov">http://www.regulations.gov</a> website. Although listed in 
the index, some information is not publicly available, e.g., CBI or 
other information whose disclosure is restricted by statute. Certain 
other material, such as copyrighted material, is not placed on the 
internet and will be publicly available only in hard copy form. 
Publicly available docket materials are available electronically 
through <a href="http://www.regulations.gov">http://www.regulations.gov</a>.

FOR FURTHER INFORMATION CONTACT: For general information, contact the 
Superfund, TRI, EPCRA, RMP, and Oil Information Center at 800-424-9346 
or TDD at 800-553-7672 (hearing impaired). In the Washington, DC 
metropolitan area, contact the Superfund, TRI, EPCRA, RMP, and Oil 
Information Center at 703-412-9810 or TDD 703-412-3323. For more 
detailed information on this final rule contact Gregory Wilson at 202-
564-7989 (<a href="/cdn-cgi/l/email-protection#97e0fefbe4f8f9b9f0e5f2f0f8e5eed7f2e7f6b9f0f8e1"><span class="__cf_email__" data-cfemail="c3b4aaafb0acadeda4b1a6a4acb1ba83a6b3a2eda4acb5">[email&#160;protected]</span></a>) or Vanessa Principe at 202-564-7913 
(<a href="/cdn-cgi/l/email-protection#304042595e535940551e46515e55434351705540511e575f46"><span class="__cf_email__" data-cfemail="9fefedf6f1fcf6effab1e9fef1faececfedffaeffeb1f8f0e9">[email&#160;protected]</span></a>). The contact address is U.S. Environmental 
Protection Agency, Office of Emergency Management, Regulations 
Implementation Division, 1200 Pennsylvania Avenue NW, Washington, DC 
20460-0002, Mail Code 5104A, or visit the Office of Emergency 
Management website at <a href="http://www.epa.gov/oem/">http://www.epa.gov/oem/</a>.

SUPPLEMENTARY INFORMATION: The contents of this preamble are:

I. General Information
II. Entities Potentially Affected by This Final Rule
III. Statutory Authority and Delegation of Authority
IV. Background
V. This Action
    A. Discharge of Oil
    B. Subpart A--Introduction
    1. Definitions
    C. Subpart J--Use of Dispersants, and Other Chemical and 
Biological Agents
    1. General
    2. Authorization for Agent Use
    3. Data and Information Requirements for Listing on the NCP 
Product Schedule or Sorbent Product List
    4. Submission of Proprietary Business Information (PBI)
    5. Addition of a Product to the NCP Product Schedule or Sorbent 
Product List
    6. Mandatory Product Disclaimer
    7. Removal of a Product From the NCP Product Schedule or the 
Sorbent Product List
    8. Appendix C to Part 300
    9. Appendix E to Part 300
VI. Summary of Final Rule Provisions
VII. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review; 
Executive Order 13563: Improving Regulation and Regulatory Review; 
and Executive Order 14094: Modernizing Regulatory Review
    B. Paperwork Reduction Act
    C. Regulatory Flexibility Act (RFA)
    D. Unfunded Mandates Reform Act
    E. Executive Order 13132: Federalism
    F. Executive Order 13175: Consultation and Coordination With 
Indian Tribal Governments
    G. Executive Order 13045: Protection of Children From 
Environmental Health Risks and Safety Risks
    H. Executive Order 13211: Actions That Significantly Affect 
Energy Supply, Distribution or Use
    I. National Technology Transfer and Advancement Act
    J. Executive Order 12898: Federal Actions To Address 
Environmental Justice in Minority Populations and Low-Income 
Populations
    K. Congressional Review Act
Part 110--Discharge of Oil
Part 300--National Oil and Hazardous Substances Pollution 
Contingency Plan

I. General Information

    In April 2010, the Deepwater Horizon underwater oil well blowout 
discharged significant quantities of oil into the Gulf of Mexico and 
raised questions about efficacy, toxicity, environmental tradeoffs, and 
the challenges of making dispersant use decisions in response 
operations for certain atypical dispersant use situations.
    In this final action, EPA is establishing new agent testing, 
listing, and authorization of use requirements under Subpart J of the 
NCP to address these challenges. These revisions to Subpart J address 
the use of dispersants and other chemical and biological agents to 
respond to oil discharges into jurisdictional waters and their 
adjoining shorelines as provided under section 311(b)(3) of the CWA. 
Specifically, the Agency is adding, amending, or removing certain 
regulatory definitions and updating requirements associated with the 
authorization of agent use (including preauthorization plan 
development, approval, and review; prohibited agents; storage; agent 
use; recovery; and reporting of use); testing of products (including 
efficacy and toxicity testing protocols); and listing on the NCP 
Product Schedule (including data and information requirements and the 
use of toxicity data to determine listing eligibility; processes for 
listing and delisting, including transitioning products to the new NCP 
Product Schedule; and proprietary business information (PBI)). The 
revisions include improved laboratory protocols for dispersant and 
bioremediation efficacy and toxicity, and will increase the overall 
scientific soundness of the data collected. These amendments to Subpart 
J will help to ensure that only

[[Page 38281]]

products that perform effectively in laboratory testing will be listed 
on the NCP Product Schedule for use in mitigating the effects of oil 
discharges.
    EPA estimates that, to comply with the revised requirements, 
industry may incur a total incremental cost of approximately $283,800 
to $376,500 annually. Note that the range in annualized cost reflects 
differences due to using 3% and 7% discount rates as well as a range 
(low and high) for submitter's paperwork burden. This action does not 
impose significant impacts on a substantial number of small entities. 
The Regulatory Impact Analysis, which can be found in the docket, 
provides more detail on the cost methodology and benefits of this 
action.

II. Entities Potentially Affected by This Final Rule

    Entities affected by the final rule include manufacturers of 
bioremediation agents, dispersants, surface-washing agents, 
solidifiers, herding agents, and sorbents used as countermeasures 
against oil spills, and government entities. The universe of domestic 
product submitters (i.e., product manufacturers) with products listed 
on the NCP Product Schedule provides the basis for identifying affected 
entities. EPA identified 89 affected domestic product manufacturers 
with products currently on the NCP Product Schedule and determined each 
manufacturer's NAICS code using Dun and Bradstreet (D&B) data.

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             NAICS code                                           Industrial category
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213.................................  Support Activities for Mining.
322.................................  Paper Manufacturing.
325.................................  Chemical Manufacturing.
326.................................  Plastics and Rubber Products Manufacturing.
423.................................  Merchant Wholesalers, Durable Goods.
424.................................  Merchant Wholesalers, Nondurable Goods.
454.................................  Nonstore Retailers.
493.................................  Warehousing and Storage.
541.................................  Professional, Scientific, and Technical Services.
561.................................  Administrative and Support Services.
562.................................  Waste Management and Remediation Services.
811.................................  Repair and Maintenance.
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    The Agency's goal is to provide a guide for readers to consider 
regarding entities that potentially could be affected by this action. 
However, this action may affect other entities not listed in this 
table. If you have questions regarding the applicability of this action 
to a particular entity, consult the person(s) listed in the FOR FURTHER 
INFORMATION CONTACT section.

III. Statutory Authority and Delegation of Authority

    Under sections 311(d) and 311(j) of the Clean Water Act (CWA), as 
amended by section 4201 of the Oil Pollution Act of 1990 (OPA), Public 
Law 101-380, the President is directed to prepare and publish the NCP 
for removal of oil and hazardous substances. Specifically, section 
311(d)(2)(G) directs the President to include a schedule identifying 
``(i) dispersants, other chemicals, and other spill mitigating devices 
and substances, if any, that may be used in carrying out the Plan, (ii) 
the waters in which such dispersants, other chemicals, and other spill 
mitigating devices and substances may be used, and (iii) the quantities 
of such dispersant, other chemicals, or other spill mitigating device 
or substance which can be used safely in such waters'' as part of the 
NCP. The Agency has promulgated the NCP, see 40 CFR 300.1 et seq., 
including the schedule of dispersants, other chemicals, and other oil 
spill mitigating devices and substances (see 40 CFR 300.900 et. seq.) 
as required by section 311(d)(2)(G). The President is further 
authorized to revise or otherwise amend the NCP from time to time, as 
the President deems advisable. 33 U.S.C. 1321(d)(3). The authority of 
the President to implement section 311(d)(2)(G) of the CWA is delegated 
to EPA in Executive Order 12777 (56 FR 54757, October 22, 1991). 
Subpart J of the NCP establishes the framework for the use of 
dispersants and any other chemical agents in response to oil discharges 
(40 CFR part 300 series 900). The Agency is further clarifying that the 
statutory schedule as required by CWA section 311(d)(2)(G) includes the 
NCP Product Schedule, the Sorbent Product List, and the Subpart J 
authorization of use procedures that, when taken together, identify the 
waters and quantities in which such dispersants, other chemicals, or 
other spill mitigating devices and substances may be used safely.

IV. Background

    In the United States and around the world, chemical and biological 
agents are among the oil spill mitigation technologies available that 
responders may consider. Subpart J of the NCP sets forth the regulatory 
requirements for the use of chemical and biological agents, which 
includes separate provisions for product testing and listing, and for 
authorization of use procedures. These requirements provide the 
structure for the On-Scene Coordinator (OSC) to determine in each case 
the waters and quantities in which dispersants or other chemical agents 
may be safely used in such waters, if any. This determination is based 
on all relevant circumstances, testing and monitoring data and 
information, and is to be made in accordance with the authorization of 
use procedures, including the appropriate concurrences and 
consultations, found within the regulation. When taken together, the 
Subpart J regulatory requirements address the types of waters and the 
quantities of listed agents that may be authorized for use in response 
to oil discharges. EPA believes that the wide variability in waters, 
weather conditions, organisms living in the waters, and types of oil 
that might be discharged requires this approach.
    The Deepwater Horizon underwater oil well blowout in 2010 raised 
questions about the challenges of making chemical agent use decisions 
in response operations, particularly for certain atypical dispersant 
use situations. To address these and other challenges, the Agency 
proposed to amend Subpart J of the NCP to revise the existing product 
listing criteria, testing protocols, and authorization of use 
procedures, as well as to establish new provisions for dispersant 
monitoring (80 FR 3383, January 22, 2015). In July 2021, EPA published 
a final rule addressing the environmental monitoring of dispersant use 
in response to major discharges and to certain dispersant use 
situations.

[[Page 38282]]

Specifically, the Agency established monitoring requirements for any 
subsurface use of dispersant in response to an oil discharge, surface 
use of dispersant in response to oil discharges of more than 100,000 
U.S. gallons occurring within a 24-hour period, and surface use of 
dispersant for more than 96 hours after initial application in response 
to an oil discharge (86 FR 40234, July 27, 2021). This final action 
addresses the remaining Subpart J revisions proposed in 2015, including 
those associated with the product listing, testing protocols, and 
authorization of use procedures.

V. This Action

    This final action amends two distinct sets of requirements under 
Subpart J: (1) Those related to chemical and biological agent testing 
and listing, and (2) those related to authorization of use. 
Specifically, in this action, the Agency adds, amends, or removes 
certain regulatory definitions associated with Subpart J, and updates 
requirements for the authorization of agent use (including 
preauthorization plan development, approval, and review; case by case 
authorization of prohibited agents; storage; agent use; recovery; and 
reporting of use); testing of products (including efficacy and toxicity 
testing protocols); and listing on the NCP Product Schedule (including 
data and information requirements, processes for adding or removing a 
product to or from the NCP Product Schedule, and proprietary business 
information.) The discussion below explains each of the amendments. It 
also summarizes and provides a response to highlighted public comments 
received on the 2015 proposal. See the Response to Comment Document for 
Listing and Testing of Chemical and Biological Agents, and for the 
Response to Comment Document on the Authorization of Use of Chemical 
and Biological Agents in the rulemaking docket for a complete summary 
and response to public comments. Sections of the NCP not identified to 
be revised in the proposed rule or addressed in this final rule are 
outside the scope of this final action.
    Revisions to Subpart J were under consideration prior to the 
Deepwater Horizon oil spill. The subsequent Deepwater Horizon oil spill 
resulted in recommendations to update Subpart J from the National 
Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling 
Report \1\ and the EPA Inspector General report titled Revisions Needed 
to the National Contingency Plan Based on Deepwater Horizon Oil Spill 
(Report #11-P-0534),\2\ including that EPA review and update dispersant 
testing protocols for product listing. The Agency's final action 
addresses those recommendations.
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    \1\ See <a href="https://www.govinfo.gov/content/pkg/GPO-OILCOMMISSION/pdf/GPO-OILCOMMISSION.pdf">https://www.govinfo.gov/content/pkg/GPO-OILCOMMISSION/pdf/GPO-OILCOMMISSION.pdf</a>.
    \2\ See <a href="https://www.epa.gov/office-inspector-general/report-revisions-needed-national-contingency-plan-based-deepwater-horizon">https://www.epa.gov/office-inspector-general/report-revisions-needed-national-contingency-plan-based-deepwater-horizon</a>.
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    This final action reflects relevant science and research that 
supports the specific provisions and their intent. The Agency 
considered the over 81,000 comments received that offered a wide range 
of perspectives and scientific information. Those comments remain 
relevant to the rulemaking, which will modernize and enhance the 
Subpart J regulatory provisions.
    The Agency is updating the process for listing products on the NCP 
Product Schedule, including expanded testing and listing thresholds. In 
doing so, EPA identified the relevant science to establish a national 
screening process for products to be listed on the NCP Product 
Schedule. Specifically, in amending the NCP Product Schedule listing 
provisions, EPA considered relevant science related to efficacy and 
toxicity testing and has determined it supports both establishing new 
protocols and updating existing protocols under Subpart J for testing 
chemical and biological agent products for listing on the NCP Product 
Schedule. These product testing protocols, along with additional 
requirements for data and information, serve as the basis for a 
national level screening of chemical and biological agent products, and 
include procedures that commercial laboratories are already familiar 
with or can readily adopt. EPA is not aware of changes to the relevant 
science since the proposed rulemaking and is proceeding with taking 
final action on the proposal. Furthermore, the final action builds upon 
the existing NCP framework, providing expanded opportunities for 
decisionmakers to consider any advancements in science beyond efficacy 
and toxicity valuations as part of listing, planning and response 
activities.
    The Agency is also updating the provisions for authorization of use 
by building upon the existing framework, providing further 
opportunities to consider advancements in science as part of the 
planning and authorization of use processes for chemical and biological 
agents. This performance-based approach provides flexibility in 
gathering, and allowing for the consideration of, scientific 
information relevant to a given site or geographic location. This 
allows for better targeting chemical and biological agent use during a 
response and is consistent with the broader NCP framework.

A. Discharge of Oil

    The Agency is revising the text at 40 CFR 110.4 to harmonize it 
with the definitions for chemical and biological agents that are also 
being finalized for Subpart J. The revision replaces the terms 
``dispersants and emulsifiers'' in Sec.  110.4 with the broader term 
``any chemical or biological agent, or any other substance.'' The 
revised definition in Sec.  300.5 for chemical agents, as finalized in 
this action, includes elements, compounds, or mixtures designed to 
facilitate the removal of oil from a contaminated environment and 
mitigate any deleterious effects. The new definition for biological 
agents, also finalized in this action, includes microorganisms 
(typically bacteria, fungi, or algae) or biological catalysts, such as 
enzymes, able to enhance the biodegradation of a contaminated 
environment. By revising the provision at Sec.  110.4, the Agency is 
clarifying that any chemical or biological agent or any other substance 
added to a discharge of oil with the intent to circumvent any provision 
of 40 CFR part 110 is prohibited. The final action replaces the 
specific qualifier ``as defined in Sec.  300.5 of this title'' with the 
broader ``or any other substance'' to emphasize the intent of this 
provision is ultimately to prohibit circumventing part 110 
requirements. The Agency has also amended the section title to 
``Chemical or biological agents.''
    Commenters on the 2015 proposal noted that the rule change would 
ensure no unintended or deliberate circumvention of Sec.  110.4 through 
any inconsistencies with Subpart J definitions. EPA agrees and has 
finalized the rule as described above to refer to the terms ``chemical 
and biological agents'' as opposed to specifically ``emulsifiers'' and 
``dispersants.'' In the finalized provision, EPA also made some 
editorial changes relative to the proposed text for increased clarity.

B. Subpart A--Introduction

1. Definitions
    EPA is finalizing revisions to Sec.  300.5 to amend the definitions 
for bioremediation agents, burning agents, chemical agents, 
dispersants, sinking agents, sorbents, and surface washing agents. 
Additionally, the Agency is finalizing new definitions for 
bioaccumulation, bioconcentration, biodegradation, biological agents, 
bioremediation, herding agents,

[[Page 38283]]

products, and solidifiers. Finally, the Agency is removing the 
definitions for miscellaneous oil spill control agents (MOSCA) and 
surface collecting agents.
(a) Revised Definitions
    Bioremediation agents--The Agency is revising the definition of 
bioremediation agents as proposed, to clarify the previous definition 
and add examples of bioremediation agents. Specifically, the final rule 
defines bioremediation agents as biological agents and/or nutrient 
additives deliberately introduced into a contaminated environment to 
increase the rate of biodegradation and mitigate any deleterious 
effects caused by the contaminant constituents. The definition 
identifies microorganisms and enzymes as bioremediation agents, as well 
as nutrient additives such as fertilizers containing bio-available 
forms of nitrogen, phosphorus, and potassium. This clarification will 
help manufacturers of products to identify the type of product, and 
hence, what testing requirements they will need to comply with to have 
a product listed on the NCP Product Schedule.
    A commenter expressed concerns about grouping all bioremediation 
agents in the revised definition. The commenter stated that the 
definition for bioremediation agent should be broken down for the three 
types of bioremediation because there are significant differences in 
applicability and appropriateness for the application of each type. EPA 
disagrees that the definition of bioremediation agent must explicitly 
include a classification for different types of bioremediation. The 
definition for bioremediation agents in the final action includes 
microorganisms, enzymes, and nutrients, to capture their different 
mechanisms of action (e.g., amending rate limiting nutrients vs. adding 
microbial cultures). The final revisions do not prevent EPA from 
grouping similar bioremediation agents together on the NCP Product 
Schedule, if appropriate.
    A commenter suggested that the definition of bioremediation agents 
should include language prohibiting the use of biological agents that 
could result in non-indigenous species colonization. EPA is not 
prohibiting the use of non-indigenous species, because the addition of 
cultured microorganisms, which may include non-indigenous species, may 
enhance biodegradation of a contaminant in certain situations. EPA 
notes that decisions to use bioremediation agents are subject to Sec.  
300.910, Authorization of Use, and expects the OSC to utilize available 
resources to determine the most appropriate bioremediation agent, if 
any, for use in a response in light of incident and site-specific 
factors.
    Burning agents--The Agency is revising the definition of burning 
agents as proposed, to identify as such those additives that improve 
the combustibility of the materials to which they are applied. This 
could be achieved through either physical or chemical means.
    A commenter interpreted that the proposed definition combines 
burning agents (materials that actually change the combustibility of 
the material they are added to) and ignition agents (ignition devices 
or materials used to start combustion). The commenter recommended that 
the Agency adopt separate definitions for burning and ignition agents 
for clarity. Some commenters suggested that the Agency should either 
include ignition devices within the definition of ``burning agents'' or 
create a separate category for ignition devices. The Agency agrees with 
commenters that ignition devices are distinct from burning agents. The 
final provisions do not include ignition devices in the definition of 
burning agent. The Agency believes that the intent of ignition devices 
is to provide the initial energy to start a burn and typically do not 
enter the water column. While ignition devices provide the initial 
energy to start a burn, these devices are incidental to burning agents, 
which are intended to improve the combustibility of the oil. EPA is 
exercising its discretionary authority and not including ignition 
devices on the NCP Product Schedule given their intended use. 
Furthermore, EPA disagrees with a commenter's statement that burning 
agents are necessarily applied ``prior to ignition;'' EPA believes that 
burning agents could be added after ignition to improve combustibility. 
The definition of burning agents in the final action does not 
specifically state when during an in situ burning cycle a burning agent 
is to be applied. The Agency is finalizing the definition of burning 
agents from the proposed rule without any changes. EPA notes that 
burning agents remain subject to Subpart J authorization of use 
requirements, even though EPA is not requiring specific product 
information and data about burning agents to be submitted to EPA under 
Sec.  300.955.
    Chemical agents--The Agency is revising the definition of chemical 
agents to identify as such those elements, compounds, or mixtures that 
are designed to facilitate the removal of oil from a contaminated 
environment and to mitigate deleterious effects. The chemical agent 
category includes burning agents, dispersants, herding agents, 
solidifiers, surface washing agents, and those bioremediation agents 
that consist of nutrient additives. This revised definition reflects 
the Agency's distinction between chemical and biological agents, 
allowing product manufacturers to better target the testing 
requirements and OSCs to better inform their authorization in specific 
situations. The finalized language also removes from the definition 
certain agent categories that are being eliminated, prohibited, or 
amended, to conform to these changes.
    Several commenters expressed concern with the Agency's proposed 
wording ``designed to facilitate the removal of oil from a contaminated 
environment.'' Commenters indicated that the definition of ``chemical 
agent'' does not make it clear that sinking agents, along with 
dispersants, do not remove or detoxify oil, but rather treat it. 
Commenters also stated that dispersants do not facilitate the removal 
of oil or mitigate deleterious effects. EPA notes that the NCP 
incorporates into Sec.  300.5 the CWA section 311 statutory definition 
of ``remove.'' Under the NCP, ``remove'' or ``removal'' refers to 
containment and removal of oil or hazardous substances from the water 
and shorelines or the taking of such other actions as may be necessary 
to minimize or mitigate damage to the public health or welfare of the 
United States (including, but not limited to, fish, shellfish, 
wildlife, public and private property, and shorelines and beaches) or 
to the environment (40 CFR 300.5). Under the NCP, the term also 
includes monitoring of action to remove a discharge (40 CFR 300.5). 
Dispersants are substances that emulsify, disperse, or solubilize oil 
by promoting the formation of small droplets or particles of oil in the 
water column. The primary purpose of using dispersants is to facilitate 
dispersal of the oil into the water column, where the oil is then 
subject to several fate and transport processes (e.g., dissolution). 
Thus, dispersant use may alter the behavior of oil to which it is 
applied and may result in an action that minimizes or mitigates damage, 
as described in the statutory definition of ``remove.'' In addition, 
depending on the oil composition, certain fractions of the dispersed 
oil may biodegrade over time. Dispersants are appropriately defined as 
chemical agents since they are designed to facilitate the removal of 
oil or mitigate oil's deleterious effects. Furthermore, EPA notes that 
the final provisions maintain the previous approach that

[[Page 38284]]

chemical agents ``. . . facilitate the mitigation of deleterious 
effects or the removal of the pollutant from the water.''
    A commenter stated that the definition of chemical agents should 
clearly delineate between chemical agents that are intended to be 
removed from the environment and those that are not. EPA believes that 
the NCP, as revised under this amendment, sufficiently delineates 
between chemical agents that are intended to be recovered from the 
environment and those that are not. The NCP addresses recovery of 
agents from the environment in multiple chemical agent and substances 
definitions (e.g., surface washing agents, sorbents) and under Sec.  
300.910(h) Recovery of Agents from the Environment.
    Commenters recommended that sinking agents be removed from the 
proposed definition of chemical agents. A commenter suggested that 
including a definition for sinking agents in the context of other 
agents that may be put on the NCP Product Schedule contradicts the 
Agency's stated policy against the use of sinking agents to treat oil 
spills. EPA agrees that sinking agents do not remove oil from the 
environment and that sinking agents should not be included in the 
definition of chemical agents. The finalized definition of chemical 
agents has been modified relative to the proposed version to remove 
sinking agents.
    Dispersants--The Agency is revising the definition of dispersants 
to identify as such those substances that emulsify, disperse, or 
solubilize oil by promoting the formation of small droplets or 
particles of oil in the water column. The Agency acknowledges that the 
primary purpose of dispersants is to facilitate oil transfer from one 
area to another (e.g., oil transferred from the water surface into the 
water column) or to maintain entrainment within the water column (e.g., 
oil maintained in the water column from a subsurface discharge). 
Dispersed oil is then subject to transport by water currents and other 
fate and transport processes (e.g., dissolution, biodegradation), which 
involves many site- and incident-specific factors. Irrespective of 
dispersant use, oil droplets may interact with suspended particulate 
material in the water column. For example, oil naturally dispersed in 
the water column (i.e., untreated dispersed oil) may also interact with 
suspended particulate material.
    A commenter stated that the proposed definition should not identify 
what dispersants are ``typically'' composed of because formula 
components will vary by intended primary use setting. EPA agrees that 
the definition of dispersants should not identify the typical 
composition of dispersants (e.g., solvents, surfactants), not 
necessarily because formula components will vary by intended primary 
use setting, but to avoid the potential misinterpretation that 
dispersants are necessarily comprised of these components. Thus, EPA is 
amending the definition of ``dispersant'' in this final rule by adding 
``. . . substances that emulsify, disperse, or solubilize oil by 
promoting . . .'' and removing ``. . . typically mixtures comprised of 
solvents, surfactants, and additives that promote . . .'' The final 
provision maintains the general approach in the current definition to 
recognize that dispersants are substances ``. . . that emulsify, 
disperse, or solubilize oil . . .'' by promoting the formation of small 
droplets or particles of oil in the water column. Furthermore, based on 
other comments regarding oil-mineral aggregates on the proposed sorbent 
definition, EPA is amending the definition of dispersants to add ``. . 
. or particles . . .'' to indicate that certain particulate materials 
may also act as dispersants. EPA also removed the phrase ``. . . by 
reducing the oil-water interfacial tension'' in order not to identify 
any specific process and to recognize that other processes may also 
result in dispersion of oil.
    Sinking agents--The Agency is revising the definition of sinking 
agents to identify them as those substances introduced into an oil 
discharge to submerge the oil to the bottom of a water body. The former 
definition was ambiguous in distinguishing chemical agents (e.g., 
dispersants) that may submerge oil below the water surface from 
substances that would sink oil to the bottom of the water body. The 
revision clarifies the distinction between sinking agents and other 
agents, such as dispersants, that do not intend to sink oil to the 
bottom of a water body but may have the incidental effect of causing 
some of the discharged oil to settle to the bottom of a water body. The 
Agency believes it is critical to distinguish between sinking agents, 
which are intended to sink oil as the primary mechanism of response, 
and dispersants, which are primarily intended to promote the formation 
of small droplets or particles of oil in the water column. The Agency 
continues to prohibit the use of sinking agents in the remediation of 
oil discharges in water because of their potential for causing adverse 
effects on benthic organisms vital to the food chain of the aquatic 
environment.
    Commenters expressed concerns with the way that the proposed 
definition distinguished between submersion and sinking. The commenters 
stated that both submersion and sinking could cause harm to benthic 
organisms and make oil more difficult to remove; several commenters 
suggested a broader definition of sinking agents to include any agent 
that causes oil to submerge below the water surface in a given 
waterbody, retains oil beneath the water surface, and/or increases 
aggregation of oil-sediment particles beneath the water surface, even 
if the treating agents also qualify for other categories (e.g., 
dispersants, solidifiers, sorbents). The Agency disagrees with the 
recommendations to modify the sinking agent definition as this would 
conflate the definitions of dispersants and sinking agents and would 
effectively work to prohibit the use of dispersants. The final action 
balances the potential for deleterious effects from dispersant use 
against their potential for reducing or mitigating the environmental 
impacts of an oil spill, through the consideration of site-specific 
conditions and within the context of all response options. Adding 
language that characterizes sinking agents as facilitating the transfer 
of oil from the water surface into the water column or retention of oil 
below the water surface would cause confusion with the definition of 
dispersants.
    A commenter provided specific recommended language to edit the 
definition of sinking agents, which included removing the proposed 
phrase ``. . . deliberately for the purpose of submerging . . .''. 
Additionally, another commenter suggested that the Agency's use of the 
term ``deliberately'' in the definition is unworkable because it fails 
to specify whose intent is relevant. EPA agrees that the term 
``deliberately'' presents challenges to interpreting intent. Therefore, 
based on public comment, EPA is removing the term ``deliberately'' from 
the sinking agent definition in this final rule.
    Sorbents--Under the revised definition of sorbents, EPA identifies 
sorbents as inert and insoluble substances that readily absorb and/or 
adsorb oil or hazardous substances and that are not combined with or 
act as a chemical agent, biological agent, or sinking agent. Sorbents 
may be used in their natural bulk form or as manufactured products in 
for example particulate form, sheets, rolls, pillows, or booms. 
Sorbents are generally collected and recovered from the environment. 
The definition also

[[Page 38285]]

includes a list of materials of which sorbents may consist. These 
revisions simplify the definition by removing the definitions of 
absorption and adsorption that were embedded in the former definition 
of sorbents; this is appropriate because absorption and adsorption are 
generally recognized scientific terms and sorbents are not 
distinguished or restricted under Subpart J based on whether they 
absorb or adsorb oil. The revised definition also adds the qualifier 
``natural'' to organic substances, indicating that organic substances 
that have been treated with other substances do not necessarily fall 
under this category of agents and should not be considered a sorbent 
absent being listed on the Sorbent Product List as provided in this 
rule. It also expands on and simplifies the examples by removing the 
references to the type of birds that feathers could come from, by 
adding bagasse to the examples for natural organic substances, and by 
adding clay to the examples for inorganic/mineral compounds. While 
sorbents are not listed on the NCP Product Schedule, a list 
characterizing these materials is included in Sec.  300.915(g) and EPA 
considers the Sorbent Product List in Sec.  300.915(g) to be a part of 
the statutory schedule addressed in 33 U.S.C. 1321(d)(2)(G).
    Commenters replied to the Agency's request for comments on the 
qualifier phrase, ``that are generally collected and recovered from the 
environment.'' Some commenters requested that EPA remove the term 
``generally'' or remove the phrase that sorbents are ``generally 
collected and recovered from the environment.'' Other commenters 
requested that sorbents be used with the intent of collecting and 
removing them from the environment. A commenter requested that the 
Agency clearly require that all sorbent materials must be recovered 
from the environment, and that sorbent use is not authorized in the 
event that the sorbents cannot be removed from the environment. EPA 
disagrees with comments that the phrase ``generally collected and 
recovered from the environment'' should be removed from the definition. 
EPA believes that the phrase recognizes and captures the expectation 
that sorbents are not intended to be left in the environment. EPA 
recognizes that on very limited occasions an OSC may make the 
determination to not recover a sorbent after consideration of factors 
such as the safety of response personnel and potential for greater harm 
to the environment if the sorbent material is recovered rather than 
left in place. Therefore, EPA retained the sentence ``Sorbents are 
generally collected and recovered from the environment'' in the amended 
definition but did move it to later in the provision in order to 
improve editorial flow and clarity. The OSC retains discretion not to 
authorize or direct the use sorbents if the OSC believes that sorbent 
use is inappropriate in light of incident-specific determinations.
    EPA received a range of comments regarding particulate materials 
(e.g., clay) and the definitions of sorbent, sinking agents, and 
dispersants. EPA recognizes that some materials may behave differently 
in the environment based, in part, on the size or configuration of the 
substance. EPA disagrees with comments that clay necessarily behaves 
like a sinking agent in all cases. To address concerns regarding 
particulate materials, EPA is amending the definition of sorbents to 
recognize potentially differing behaviors and to distinguish between 
sorbents and sinking agents. The final revisions to the definition of 
sorbents includes that these substances are ``. . . not combined with 
or act as . . . sinking agents.'' EPA recognizes that substances such 
as clay may be used as a sorbent, but also agrees with commenters that 
they should not act as a sinking agent. EPA believes it is appropriate 
to continue to allow substances such as clay to be listed as sorbents 
and used as a sorbent during a response, provided that they are done so 
in manner that prevents them from acting as a sinking agent (e.g., 
contained in a buoyant boom). The Agency expects that the 
Administrative Record for a response would provide the basis for 
continued sorbent use under OSC oversight or direction, and the 
Administrative Record should address any potential concerns with 
sorbents being used as a sinking agent. EPA also recognizes that 
particulate materials may be manufactured of such configuration (e.g., 
micro- or nanosized) that they are, or are near, neutrally buoyant and 
remain in the water column over an extended time period. EPA recognizes 
comments that particulate materials may promote dispersion by forming 
oil-mineral aggregates (OMAs) and agrees with commenters that such 
substances should be addressed as dispersants rather than sorbents. 
Substances intended for use in a manner similar to a chemical or 
biological agent listed on the NCP Product Schedule (e.g., dispersants) 
should be classified similarly and subject to the same authorization of 
use procedures. The final rule clarifies that dispersants are 
substances that emulsify, disperse, or solubilize oil by promoting the 
formation of small droplets or particles of oil in the water column. 
This revised definition clarifies that substances that emulsify, 
disperse, or solubilize oil include particulate materials because they 
promote the formation of particles of oil (e.g., OMAs). Particulate 
materials that are used in a manner similar to chemical dispersants are 
appropriately categorized as dispersants on the NCP Product Schedule 
and are subject to the same dispersant authorization of use procedures 
under Sec.  300.910.
    Surface washing agents--The Agency is revising the term ``surface 
washing agent'' to ``surface washing agents'' and modifying the 
definition. EPA changed the term from singular to plural to be 
consistent with the other agent definitions. The revised definition 
identifies surface washing agents as those substances that separate oil 
from solid surfaces (e.g., beaches, rocks, metals, or concrete) through 
a detergency mechanism. The revised definition specifies that 
detergency mechanism lifts and floats the oil. The final definition is 
modified slightly from the proposed phrasing to clarify that the 
product and oil are generally to be collected and recovered from the 
environment with minimal dissolution, dispersion, or transfer into the 
water column to be consistent with similar phrases included in the 
sorbents and solidifiers definitions. EPA recognizes that on occasion 
an OSC may make the determination to not recover a surface washing 
agent after consideration of factors such as the safety of response 
personnel and potential for greater harm to the environment if the 
surface washing agent material is recovered rather than left in place 
(see 40 CFR 300.910(h)).
    A commenter suggested that surface washing agents used in fully 
self-contained structures (e.g., tank farms, dry-dock vessels, sand-
cleaning machines) or in a manner that prevents run-off to water (e.g., 
cleaning/wiping of vessel hulls by hand) need not be listed on the NCP 
Product Schedule or require approvals from the OSC or RRT before use. A 
commenter suggested including the phrase ``that are not likely to cause 
additional harm, either alone or in combination with oil, to public 
health or welfare or to the environment'' in the definition. EPA is not 
revising the definition to include this phrase. EPA believes that the 
NCP must retain flexibility to allow for environmental tradeoffs that 
take into consideration incident-specific conditions when determining 
what actions should be taken to immediately and effectively address an 
oil discharge.

[[Page 38286]]

(b) New Definitions
    The Agency is adding several new definitions for terms that are 
used in the amendments to Subpart J. These definitions include basic 
terminology and are consistent with how the terms are generally 
understood by the scientific community.
    Bioaccumulation--The Agency is establishing the definition of 
bioaccumulation, as proposed, to mean the process of accumulation of 
chemicals in the tissue of organisms through any route, including 
respiration, ingestion, or direct contact with the ambient or 
contaminated medium. The Agency is finalizing the definition of 
bioaccumulation from the proposed rule without any changes.
    A commenter expressed support for separate definitions of 
bioaccumulation and bioconcentration. The Agency appreciates and 
recognizes the commenter's perspective that bioaccumulation includes 
multiple routes of exposures to pollutants (e.g., including dietary or 
food chain), whereas bioconcentration only includes water-borne routes 
of exposure (e.g., absorption across the gills).
    Bioconcentration--The Agency is establishing the definition of 
bioconcentration, as proposed, to mean the accumulation of chemicals in 
the tissues of organisms from water alone.
    A commenter expressed support for separate definitions of 
bioaccumulation and bioconcentration, as described above. The Agency is 
finalizing the definition of bioconcentration from the proposed rule 
without any changes.
    Biodegradation--The Agency is establishing the definition of 
biodegradation to mean the process by which microorganisms 
metabolically decompose contaminants into biomass and smaller molecular 
compounds such as carbon dioxide, water, and end products.
    Commenters suggested expanding the definition of biodegradation to 
include the possibility of partial biodegradation, which can result in 
more toxic intermediate products. The commenters stated that partial 
biodegradation is likely to occur in the environment versus controlled 
laboratory conditions. EPA recognizes that partial biodegradation may 
occur in the environment. Therefore, the Agency amended the definition 
of biodegradation in the final rule to replace the phrase ``. . . 
simpler compounds . . .'' with ``. . . smaller molecular compounds . . 
.''. EPA also removed the term ``innocuous'' in the final action to 
recognize that not all end products may be innocuous.
    Biological agents--The Agency is establishing the definition of 
biological agents to mean microorganisms (typically bacteria, fungi, or 
algae) or biological catalysts, such as enzymes, that can enhance the 
biodegradation of a contaminated environment. EPA has slightly amended 
the definition of biological agent in this rulemaking to replace the 
phrase ``. . . able to . . .'' with ``. . . that can . . .'' to better 
reflect the intent of the definition.
    A commenter recommended that the definition of bioremediation 
agents include a ban on agents that may result in the colonization of 
non-indigenous species. While EPA understands that microorganisms 
capable of degrading oil are ubiquitous in nature, the Agency is 
maintaining its prior approach in this rulemaking to recognize the 
addition of microorganisms as a potential bioremediation process. In 
general, the addition of cultured microorganisms, which may include 
non-indigenous species, may enhance biodegradation of a contaminant.
    Bioremediation--The Agency is establishing the definition of 
bioremediation to mean the process of enhancing the ability of 
microorganisms to convert contaminants into biomass and smaller 
molecular end products by the addition of materials into a contaminated 
environment to accelerate the natural biodegradation process.
    Commenters suggested expanding the definition to include the 
possibility of partial bioremediation, which can result in more toxic 
intermediate products. The commenters stated that partial 
bioremediation is likely to occur in the environment versus controlled 
laboratory conditions. EPA recognizes that partial biodegradation may 
lead to the formation of intermediate products. The Agency is amending 
the definition of bioremediation in this final rule to replace the 
phrase ``. . . simpler compounds . . .'' with ``. . . smaller molecular 
compounds . . .''. EPA also removed the term ``innocuous'' to recognize 
that not all end products may be innocuous.
    Herding agents--The Agency is establishing the definition of 
herding agents to mean substances that form a film on the water surface 
to control the spreading of the oil to allow for oil removal. The 
definition for surface collecting agent was removed and replaced with 
the definition for herding agent to better reflect the common 
terminology used in industry for these agents.
    A commenter stated that the Agency should add language to the 
``herding agents'' definition which includes that they are not likely 
to cause harm, either alone or in combination with oil, to public 
health or the environment and that they are intended to be collected 
and recovered from the environment. EPA disagrees with these suggested 
edits to the definition of herding agents. The NCP addresses discharges 
of oil to the environment and response authorities must retain 
flexibility to allow for environmental tradeoffs that consider 
incident-specific conditions when determining what actions should be 
taken to immediately and effectively address the discharge. EPA is 
amending the definition of herding agents in the final rule by 
replacing the proposed phrase ``. . . across the water surface.'' with 
the phrase ``. . . form a film on the water surface . . .'' and adding 
the phrase ``. . . allow for oil removal.'' to better reflect the 
mechanism of action of herding agents.
    Products--The Agency is establishing the definition of products to 
mean chemical or biological agents or other substances manufactured 
using a unique composition or formulation.
    A commenter suggested that the proposed definition of products is 
incomplete because it only includes agents that may be listed on the 
NCP Product Schedule. Other commenters suggested that the definition of 
products should include anything that may be used to mitigate oil 
spills (e.g., burning agents, ignition devices, synthetic sorbents, 
organic or inorganic substances that may be used in bulk form, and 
substances that are manufactured using a unique composition or 
formulation). EPA's definition for products is intended to clarify the 
difference between a specific product and an agent type or category 
under the NCP Product Schedule and the Sorbent Product List. EPA agrees 
that the definition of a product should recognize sorbents by adding 
the term ``other substances.'' The finalized definition clarifies the 
distinction between an agent category (e.g., surface washing agent) or 
substance (e.g., sorbent) from a product for which a manufacturer 
submits an application to the Agency for listing on the NCP Product 
Schedule or the Sorbent Product List. The Agency is not revising the 
definition of ``product'' to specifically include burning agents since 
they are already included in the definition of chemical agents. 
Furthermore, the Agency disagrees to add ``other spill mitigating 
devices'' as it would not accurately reflect the applicability of the 
regulatory provisions for the purposes of the NCP Product Schedule or 
the Sorbent Product List in this final action.

[[Page 38287]]

    Solidifiers--The Agency is establishing the definition of 
solidifiers to mean substances that through a chemical reaction cause 
oil to become a cohesive mass, preventing oil from dissolving or 
dispersing into the water column. Solidifiers are generally collected 
and recovered from the environment. Solidifiers was not previously a 
specific product category on the NCP Product Schedule. The final rule 
amends the definition to recognize that solidifiers are ``generally'' 
to be collected, to recognize that the OSC has flexibility to consider 
factors such as the safety of response personnel and harm to the 
environment in making recovery determinations (see 40 CFR 300.910(h)).
    A commenter requested that the Agency add language to the 
definition to explain that solidifiers have no real advantage over 
sorbents or mechanical recovery and that they have limited 
practicality, may cross-link or react with other substances, and 
require immediate removal from the environment. The commenter mentioned 
that there has been very limited effectiveness testing or recent 
studies on solidifiers. The commenter requested that the definition of 
``solidifiers'' include additional limitations to specify conditions 
under which solidifiers may be used such as proximity to shore and 
quantity of oil. The Agency acknowledges the commenter's concerns; 
however, the Agency disagrees with the suggested edits. The definition 
is intended to convey the mechanism of action and to distinguish 
solidifiers from other chemical or biological agents. Subpart J does 
not state or imply that chemical or biological agents are preferred 
over other response options such as mechanical recovery devices. EPA 
notes that mechanical recovery devices, including skimmers, are outside 
the scope of this action. EPA believes that the circumstances 
surrounding oil discharges and the factors influencing the choice of 
response methods are many. In addition, the final revisions under Sec.  
300.910(g) provide that RRTs may require supplementary toxicity and 
efficacy testing, or to obtain data or information to address site, 
area, or ecosystem-specific concerns relative to the use of any 
chemical or biological agent. The Agency believes that the specific 
conditions under which solidifiers may be used, such as proximity to 
shore and quantity of oil, are better addressed through the 
authorization of use process found at Sec.  300.910 Authorization of 
Use.
(c) Removed Definitions
    Miscellaneous Oil Spill Control Agent (MOSCA)--The Agency is 
removing the definition for miscellaneous oil spill control agent 
(MOSCA). The MOSCA category was used as a catchall for all types of 
products that did not meet other agent definitions; it is being 
replaced with a number of new and/or revised definitions for types of 
agents. As the Agency adds new, more stringent testing requirements for 
listing products on the NCP Product Schedule, there is a need for more 
specific category definitions to assist manufacturers in determining 
which of those testing requirements apply to their products. Commenters 
supported the removal of the definition for MOSCA. A commenter 
specifically expressed support for the removal of the MOSCA category 
provided that a subcategory is included in the ``sorbents'' definition 
to account for the uniqueness of certain products among the other 
sorbents.
    The Agency agrees with comments supporting the removal of the MOSCA 
category and the final action removes the category and definition of 
MOSCAs from the NCP. The Agency has identified product categories to be 
listed on the NCP Product Schedule and revised it accordingly. The 
MOSCA category is no longer necessary or appropriate and is being 
removed from the NCP through this final action. EPA does not believe 
that removing the MOSCA definition results in listed products 
automatically being reassigned to fall under the definition of another 
chemical or biological agent, or substance. The final revisions provide 
for the process to transition listed products from the current NCP 
Product Schedule to the new NCP Product Schedule as described in Sec.  
300.955(f).
    Surface collecting agents--The Agency is removing the definition 
for surface collecting agent and replacing it with a new herding agent 
definition to better reflect the common terminology used in industry 
for these agents.
    EPA did not identify comments on the proposed amendment specific to 
removing the definition for surface collecting agents.

C. Subpart J--Use of Dispersants, and Other Chemical and Biological 
Agents

1. General
    EPA is amending Sec.  300.900 by revising the title and paragraphs 
(a) and (c), and by adding paragraph (d) to reserve for later use. The 
revisions clarify that Subpart J addresses not only chemical agents, 
but also those agents that now fall under the new biological agent 
category. The revisions reaffirm the notion that Subpart J is not only 
comprised of an NCP Product Schedule of chemical and biological agents, 
but also includes testing requirements and authorization of use 
procedures. Consistent with current Subpart J regulatory requirements, 
the Agency is reserving a section for ``Releases of Hazardous 
Substances'' to take place of the current placeholder in Sec.  300.905, 
which is being removed.
    Some commenters on the proposed rule expressed support for the 
update to Sec.  300.900, which clarifies the Agency's duties under the 
CWA, but noted that the Agency should specify waters and quantities 
where products can be used safely, highlighting the importance of the 
word ``safely.'' The Agency recognizes support to clarify that Subpart 
J includes the identification of the waters and quantities in which 
chemical and biological agents may be safely used. In this final 
action, EPA is amending the last sentence of the proposed regulatory 
text under Sec.  300.900 to include the term ``safely'' as provided in 
CWA section 311(d)(2)(G)(iii) based on the comment received.
    In addition, the Agency is clarifying that the statutory schedule 
as required by CWA section 311(d)(2)(G) includes the NCP Product 
Schedule, the Sorbents Product List, and authorization of use 
procedures that, when taken together, identify the waters and 
quantities in which such dispersants, other chemicals, or other spill 
mitigating devices and substances may be used safely. EPA is amending 
the regulation text at Sec.  300.900, and throughout Subpart J, to 
clarify that it is the ``NCP Product Schedule'' which EPA updates 
periodically, in order to avoid confusion with the statutory use of the 
term ``schedule'' referred to in CWA section 311(d)(2)(G).
    Some commenters requested additional clarification related to 
Administrator authority and expressed uncertainty regarding federal 
authority. Specifically, these commenters indicated a need for 
additional clarity regarding the role of the Agency versus that of the 
U.S. Coast Guard or other public or private entities involved in spill 
response. While CWA section 311(c) provides statutory authority for 
certain removal actions and identifies the agencies that are to provide 
the federal OSC (which may include EPA or U.S. Coast Guard), it does 
not provide authority to revise the NCP and does not govern how the NCP 
regulates response actions. The authority to establish, revise, and 
maintain the NCP is addressed in CWA section 311(d), which has been 
delegated to the EPA Administrator in Executive Order 12777 (56 FR 
54757, October 22, 1991). EPA will continue to exercise its authority

[[Page 38288]]

over the NCP, and CWA section 311(c) responses remain subject to NCP 
provisions as per Congressional direction at CWA section 311(c)(1), 
which provides that the President ``shall, in accordance with the 
National Contingency Plan and any appropriate Area Contingency Plan, 
ensure effective and immediate removal of a discharge . . . .'' 
(emphasis added).
2. Authorization for Agent Use
    Section 300.910 sets forth the provisions for the authorization of 
use of products on the NCP Product Schedule in response to oil 
discharges. EPA is adding an introductory paragraph to Sec.  300.910 
that confirms, consistent with the intent of the NCP, that use of 
chemical or biological agents in response to oil discharges must be 
authorized by an OSC in accordance with Subpart J. In the final rule, 
EPA did not include the phrase ``. . . to waters of the U.S. or 
adjoining shorelines . . .'' under the opening clause to Sec.  300.910 
Authorization for agent use since the scope of Subpart J is already 
addressed under Sec.  300.900. Unauthorized use can result in 
violations of sections 301 and 311 of the CWA. Section 301(a) makes 
unlawful ``the discharge of any pollutant by any person,'' except in 
compliance with certain provisions of the CWA. In addition, section 
311(b) establishes penalties for persons who fail or refuse to comply 
with any regulation issued under section 311(j) of the CWA.
    Commenters suggested that the Agency is already required by 
Congress to establish a list of products that may be used for response 
within navigable waters of the United States and EPA is therefore 
required to approve these products for use in response activities. EPA 
disagrees with the characterization that the Agency is required by 
Congress to establish a list of products such that those products are 
automatically authorized for use within the jurisdictional waters of 
the United States by their listing. The CWA provides the President with 
the authority to determine what products, if any, may be used in what 
waters, and in what quantities. The NCP Product Schedule addresses the 
chemical and biological agents that may be authorized for use upon 
consideration of both the appropriateness of their use in the impacted 
waters and the amount of product that may be used safely in response to 
the unique nature of each oil discharge. EPA does not believe a ``one 
size fits all'' approach to emergency response is appropriate or 
prudent. A ``one size fits all'' approach could lead to significant 
under- and over-use of products that could exacerbate oil discharges 
absent consideration of all the specific conditions of each individual 
discharge. The final action provides for flexibility to evaluate the 
specific nature of an oil discharge when considering the authorization 
of a chemical or biological agents.
(a) Use of Agents Identified on the NCP Product Schedule or Use of 
Burning Agents on Oil Discharges Addressed by a Preauthorization Plan
    The Agency is revising Sec.  300.910(a) to address the 
preauthorized use of chemical and biological agents identified on the 
NCP Product Schedule. The Agency reorganized paragraph (a) to provide 
greater clarity about RRT and Area Committee responsibilities. The 
revisions to Sec.  300.910(a) clarify the process for preauthorization, 
the responsibilities of all involved parties, and the factors to 
consider during the preauthorization process, including the 
authorization for the use of agents by the OSC at the time of a 
discharge. The reorganized paragraph (a) also makes the regulatory text 
easier to read and follow. The Agency added procedure and review 
requirements at Sec.  300.910(a)(3) intended to ensure preauthorization 
plans are maintained so they are up to date. The finalized provisions 
also address recommendations from the National Commission on the BP 
Deepwater Horizon Oil Spill and Offshore Drilling report and EPA's 
Inspector General report titled Revisions Needed to National 
Contingency Plan Based on Deepwater Horizon Oil Spill (Report #11-P-
0534). The final revisions do not change the NCP's fundamental policies 
regarding roles of Federal, state, and local representatives involved 
in planning for and responding to an oil discharge, but rather clarify 
the regulatory requirements and further explain the responsibilities 
for each party.
    Some commenters expressed concerns that the proposed rule focused 
on preauthorization and suggested that the focus should instead be on 
consultation and concurrence. The Agency recognizes that the RRTs and/
or Area Committees must consider whether preauthorization of chemical 
and biological agents is appropriate, while maintaining the existing 
concurrence and consultation roles on authorization of use. The revised 
preauthorization provisions provide greater clarity on the factors the 
RRT must address and those factors they should consider in developing a 
preauthorization plan. Department of the Interior (DOI) and Department 
of Commerce (DOC) natural resource trustees retain their concurrence 
role when approving preauthorization plans. DOI and DOC natural 
resource trustee concurrence is appropriate as preauthorization plans 
are developed during the contingency planning phase, when there is 
sufficient time to identify and resolve natural resource concerns.
    A commenter advocated for clarification of ``mixed use'' products, 
indicating that some of the products on the NCP Product Schedule have 
multiple uses and that during preauthorization planning all potential 
uses of an agent or product should be factored into the planning 
decisions. EPA recognizes that a ``mixed use'' product that meets the 
definition of more than one chemical or biological agent category may 
raise authorization of use issues when (1) listed under more than one 
chemical or biological agent category or (2) listed under one chemical 
or biological agent category but still meets the definition of another 
product category because of an alternate mechanism of action. The 
listing of a product on the NCP Product Schedule should not cause 
confusion on how that product is authorized at the time of an incident. 
Noting these concerns, the final action allows for the evaluation of 
products on an individual basis and informs the decision on whether and 
under which category to list a product on the NCP Product Schedule.
    Some commenters expressed concern or requested clarification on the 
roles and authorities of RRTs and Area Committees in preauthorization 
planning. Area Committees' roles and authorities under CWA section 
311(j)(4) are outside the scope of this rulemaking. Nonetheless, CWA 
section 311(j)(4) provides the roles of the Area Committees in planning 
for the use of dispersants, including for Area Contingency Plans to 
list the equipment (including firefighting equipment), dispersants or 
other mitigating substances and devices, and personnel available to an 
owner or operator, Federal, State, and local agencies, and tribal 
governments, to ensure an effective and immediate removal of a 
discharge, and to ensure mitigation or prevention of a substantial 
threat of a discharge. EPA notes that not all spill mitigating 
equipment, substances or devices may be available or appropriate in 
certain planning areas. EPA believes that to create the best possible 
response system, it is important that the regional-level and area-level 
contingency planning efforts of the RRTs and Area Committees, 
respectively, are closely coordinated. RRTs and Area Committees

[[Page 38289]]

should work together to develop mutually acceptable preauthorization 
plans, as appropriate. The standing RRTs also have responsibilities for 
oil spill contingency planning on a regional basis and can facilitate 
consistency among Area Committees. In instances where the RRT and Area 
Committees exist as separate entities, several RRT representatives 
likely also serve on the Area Committees for that region, allowing for 
familiarity with the roles and responsibilities of each entity. In 
instances (e.g., in the inland zone) where RRTs fulfill the role of the 
Area Committees, they are thus responsible for both regional and area-
level contingency planning (see 57 FR 15197, April 24, 1992). EPA 
agrees that in the development of preauthorization plans, RRTs should 
either provide Area Committees with an opportunity to provide input or 
should consider relevant information in Area Contingency Plans (ACPs) 
(e.g., Fish and Wildlife and Sensitive Environments Annex). The RRTs 
and Area Committees should identify all potentially affected biological 
resources and their habitats likely to be negatively impacted, and not 
only those that are expected to benefit.
    Another commenter noted that not all regions have a use for 
preauthorization planning, suggesting that only regions with use for 
these plans should be required to develop planning materials. While 
RRTs and ACs must consider whether having a preauthorization plan is 
appropriate, the final action does not mandate preauthorization plans 
to be developed or preauthorization of any chemical or biological 
agents. EPA modified the proposed text to remove the phrase ``in a 
preauthorization plan'' to avoid a misinterpretation that Sec.  
300.910(a) requires that RRTs develop preauthorization plans. EPA also 
amended the final action under Sec.  300.910(a) to further clarify the 
provision is to consider whether ``preauthorization of'' the use of 
chemical and biological agents is appropriate.
    The final action provides that an OSC may authorize the use of 
agents listed on the NCP Product Schedule, or the use of burning 
agents, for the purpose for which they were specifically listed without 
obtaining the incident-specific concurrences and without the natural 
resource trustees consultations described in Sec.  300.910(b). Some 
commenters supported approval of preauthorization plans by natural 
resource trustees. EPA amended the final provision to clarify that the 
OSC does not need to obtain the incident-specific natural resource 
trustees consultations described in paragraph (b) of this section when 
authorizing the use of certain agents under Sec.  300.910(a) by adding 
the phrase ``. . . and without the natural resource trustees' 
consultations . . .'' described in paragraph (b) of this section. The 
final provisions provide for DOI and DOC natural resource trustees 
concurrence on preauthorization plans rather than consultations. EPA 
continues to believe that DOI and DOC natural resource trustee 
concurrence is more appropriate than consultation during the 
contingency planning phase, when there is sufficient time to identify 
and resolve natural resource concerns while considering whether 
preauthorization is appropriate. Consistent with previous 
preauthorization approval requirements, the final revisions provide for 
DOI and DOC natural resource trustee approval, approval with 
modification, or disapproval of preauthorization plans.
    The final action provides that chemical or biological agents on the 
NCP Product Schedule may only be authorized for the purpose for which 
they were specifically listed. EPA amended the final provision to 
replace the phrase ``. . . intended purpose . . .'' with ``. . . for 
the purpose for which they were specifically listed . . .'' for greater 
clarity. This revision was made in response to a commenter's concern 
that chemical or biological agents may only be used for their intended 
use within a specific category (e.g., an agent that is listed as a 
surface washing agent cannot be authorized for use as a dispersant).
    In the finalized provision, EPA also made some editorial changes to 
the proposed text for increased clarity.
    Preauthorization Plan Development. At Sec.  300.910(a)(1), EPA is 
finalizing requirements for the preauthorization plan's site-specific 
factors. While the revisions simplify the language and clarify the 
requirements, the Agency kept in place the fundamental elements that 
were contained in the former Sec.  300.910(a) text. The provision 
states that preauthorization plans must, at a minimum, specify limits 
for the quantities and duration of use, and use parameters for water 
depth, distance to shoreline, and proximity to populated areas for 
discharge situations identified in which agents may be used. The Agency 
believes that clearly stating the use parameters in a preauthorization 
plan will make it easier for planners to address concerns of 
preauthorizing agent use and in turn for responders to authorize their 
use. In meeting these provisions, the preauthorization plans should 
document how both regional and logistical factors were addressed when 
establishing use limits and parameters for chemical and biological 
agents. Regional factors include the likely sources and types of oil 
that might be discharged, various potential discharge scenarios, and 
the existence and location of environmentally sensitive resources or 
restricted areas that might be impacted by discharged oil. Logistical 
factors include inventory, storage locations and manufacturing 
capability of available agents, availability of equipment needed for 
agent use, availability of adequately trained operators, and the 
availability of appropriate means to monitor agent use in the 
environment.
    Several commenters requested clarification on the need to specify 
limits to the quantities and duration of agent use and the proposed use 
parameters for water depth, distance from shoreline, and proximity to 
populated areas; commenters noted that it is not realistic to predict 
all scenarios. EPA recognizes that oil discharges may occur under 
various scenarios. EPA does not envision that preauthorization plans 
would address every scenario imaginable, but instead will only address 
those specific circumstances under which RRT member agencies with roles 
and responsibilities under the NCP agree that an OSC does not need to 
obtain specific concurrence and consultations under Sec.  300.910(b) in 
effectuating a preauthorized action. For example, a potential oil 
discharge scenario may involve a response that occurs over several 
days. The use of a chemical or biological agent (e.g., surface 
dispersant use) during the initial response phase may be preauthorized 
in a manner such that any use beyond that initial response phase would 
be subject to Sec.  300.910(b) and in limited circumstances subject to 
Sec.  300.910(b). While the preauthorization plan must specify limits 
for the quantities and the duration of use, and use parameters for 
water depth, distance to shoreline, and proximity to populated areas, 
RRTs may wish to include other criteria in defining the scope of the 
preauthorization plan. Based on public comments, EPA is amending the 
final provisions to reflect that the limits for the quantities and the 
duration of use, and use parameters for water depth, distance to 
shoreline, and proximity to populated areas are the minimum criteria 
that RRTs must specify by inserting the phrase ``at a minimum'' before 
the specific criteria in the regulatory text.
    Commenters supported considering environmental tradeoffs in 
determining response options that provide the greatest environmental 
protection by

[[Page 38290]]

identifying the affected biological resources and their habitats likely 
to be negatively impacted, as well as those that are expected to 
benefit. For example, a commenter suggested that the Agency rely upon 
the Net Environmental Benefit Analysis (NEBA) framework as a foundation 
for preauthorization planning, as opposed to artificially setting 
limits on dispersant use. EPA's understanding is that ``NEBA'' is a 
term used by some stakeholders in the response community to engage with 
various interested parties to consider available response options, 
including mechanical recovery. EPA also acknowledges that different 
stakeholders have varying perspectives on what factors beyond 
environmental considerations (e.g., economic, health, and safety) are 
included in a NEBA, or what response options may provide the ``greatest 
environmental protection.'' While there is no prohibition on the use of 
environmental tradeoff methodologies, the use of such methodologies 
must conform with all applicable statutory and regulatory authorities.
    A commenter disagreed with the use of the word ``likely'' in 
reference to the sources and types of oil that may be spilled and 
suggested keeping ``potential'' instead, as a more conservative term 
that is more appropriate for preauthorization planning. EPA believes 
the phrase ``likely sources and types of oil'' better focuses on the 
sources and types of oil specific to the preauthorization plan for 
which agents may be used. While RRTs and Area Committees should 
consider ``likely sources and types of oil'' in developing 
preauthorization plans, the Agency believes they should also have the 
flexibility to consider other potential sources and types of oil, as 
appropriate, and the final revisions do not preclude RRTs and Area 
Committees from considering them. In considering the use of the term 
``potential'' as offered by the commenter, EPA decided to clarify the 
phrase ``various discharge scenarios'' as used in the proposed rule. 
EPA recognizes that when developing a preauthorization plan, Area 
Committees and RRTs should not misinterpret ``various discharge 
scenarios'' to only mean past incidences but should also consider 
potential discharges scenarios. While RRTs and Area Committees should 
consider past discharge scenarios, the Agency believes they should also 
have the flexibility to consider potential discharge scenarios. In this 
respect, EPA agrees with the commenter that the term ``potential'' is 
more appropriate and is amending the phrase in the regulatory text to 
include ``potential''. EPA believes the revised phrase ``various 
potential discharge scenarios'' more accurately reflects EPA's intent.
    Some commenters expressed concern or requested clarification on the 
roles and authorities of RRTs and Area Committees in preauthorization 
planning. EPA agrees that in the development of preauthorization plans, 
RRTs should either provide Area Committees with an opportunity to 
provide input or should consider relevant information in ACPs (e.g., 
Fish and Wildlife and Sensitive Environments Annex). The RRTs and Area 
Committees should identify all potentially affected biological 
resources and their habitats likely to be negatively impacted, and not 
only those that are expected to benefit. EPA amended the final 
provision to ensure that Area Committees are involved in 
preauthorization plan development. EPA notes that the broader area 
contingency planning provisions are established under Sec.  300.210(c) 
and are outside the scope of this action.
    Preauthorization Plan Approval. At Sec.  300.910(a)(2), EPA is 
finalizing requirements related to the roles and responsibilities 
involved in reviewing and approving preauthorization plans, and 
procedures if preauthorization plan approval is withdrawn. The final 
action retains the concurrence requirement for preauthorization plans 
from the former version of the rule; given that preauthorization plans 
are developed during the contingency planning phase, DOC and DOI 
natural resource trustee concurrence is preferred over just 
consultation because it provides for sufficient time to identify and 
resolve natural resource concerns.
    Commenters suggested that the preauthorization planning process be 
completed under mandatory timelines, including a suggestion that plans 
must be reviewed within a 90-day time frame, or that the Agency 
otherwise stipulate that the plan cannot be blocked from being used by 
an Area or Region. EPA does not believe that it is appropriate to 
establish specific deadlines for the review and approval of 
preauthorization plans because both the Area Committees and RRTs 
coordinate their approach to reviewing and revising existing 
preauthorization plans and determine what information they may need to 
amend their preauthorization plan, as appropriate. EPA believes RRTs 
and ACs should begin their reviews as expeditiously as possible where 
preauthorization plans exist, but they also must be afforded 
flexibility in implementing the final revisions to ensure 
preauthorization plans are up-to-date when implemented in the event of 
a discharge.
    To be consistent with terminology for preauthorization plan 
approvals, EPA is revising the provision in the final action to 
substitute the phrase ``withdrawal of approval from a preauthorization 
plan . . .'' for ``withdrawal of concurrence . . .'' The amended rule 
offers specific procedures to follow should an authorizing agency 
decide to withdraw their approval from a preauthorization plan: the 
Area Committees and RRTs must address the withdrawal of approval from 
the preauthorization plan within 30 days of the withdrawal, allowing an 
opportunity to address the concerns. Additionally, the RRT must notify 
the National Response Team (NRT) of the final status of the 
preauthorization plan within 30 days from withdrawal. The absence of an 
approved preauthorization plan means authorizations for agent use are 
to be conducted in accordance with paragraph Sec.  300.910(b) or in 
limited circumstances under Sec.  300.910(d). Therefore, the Agency 
believes that the phrase ``the preauthorization plan becomes invalid 
and the authorization of use for chemical or biological agents must be 
performed according to paragraph (b)'' is unnecessary and redundant and 
is striking it from the final provision. The Agency continues to 
believe that preauthorization plans serve as a valuable advanced 
planning tool that supports decision making, and strongly encourages 
the resolution of any withdrawal of approval in a manner that addresses 
concerns raised.
    Commenters expressed concerns over the potential impact of allowing 
for withdrawal of preauthorization plan approval. EPA disagrees that 
the ability to withdraw may incentivize the development of 
preauthorization plans with no intent of maintaining concurrence during 
a response. EPA also disagrees that the withdrawal of approval from a 
preauthorization plan subverts the OSC's authority to use dispersants 
and that this provision should be removed. RRT member agencies who have 
responsibilities in approving preauthorization plans have always had 
the discretion to withdraw their approval at any time. An OSC may still 
authorize the use of dispersants and other agents outside of an 
approved preauthorization plan in accordance with Sec.  300.910(b) or 
in limited circumstances under Sec.  300.910(d). Case-by-case 
authorization of use under Sec.  300.910(b) is an appropriate and 
timely process to authorize the use of dispersants and other agents and 
should not delay response operations such as

[[Page 38291]]

the deployment of mechanical recovery. In contrast, restricting the 
flexibility to withdraw approval from a preauthorization plan could 
serve as a disincentive to approve a preauthorization plan or result in 
limiting the plan's scope and lead to more frequent requests for 
authorization by OSCs under Sec.  300.910(b). EPA disagrees that the 
preauthorization plan should stay in effect for 30 days after 
withdrawal of approval while allowing RRTs and Area Committees to 
address the withdrawal. A withdrawal likely signals concerns amongst at 
least one of the approving bodies with actions or activities that had 
been preauthorized. The final provisions provide a 30-day timeframe for 
the RRT to notify the NRT of the status of the preauthorization plan 
after any such withdrawal. EPA believes that RRTs and Area Committees 
are likely to be aware of concerns prior to withdrawal of approval from 
a preauthorization plan, can work to resolve any perceived differences 
prior to any withdrawal, and are not prohibited from entering into new 
preauthorization plans addressing the same or similar areas in the 
future. For an active incident where chemical and biological agents 
have been authorized for use under a preauthorization plan, EPA 
encourages RRT member agencies with approval roles to work with the RRT 
to promptly resolve concerns and avoid potential withdrawal of plan 
approval during a response.
    Several commenters suggested a need for public input and 
notification during the preauthorization plan approval process, 
including a requirement for public notification following the 
withdrawal of concurrence. Another commenter recommended a formal 
public review and comment period on each preauthorization decision, 
recommending that the RRTs and Area Committees should be required to 
provide a written peer-reviewed scientific and technical study to 
support any preauthorization plan, and provide a 60-day public review 
and comment period. EPA disagrees that the RRTs and Area Committees 
should be required to provide a written peer-reviewed scientific and 
technical study to support any preauthorization plan, or that they 
should provide a 60-day public review and comment period or formal 
public review and comment period on each preauthorization decision. The 
Agency believes that the RRTs and Area Committees should have the 
flexibility to tailor preauthorization plans to their regional needs. 
While EPA recognizes the benefits of public feedback on 
preauthorization plans including independent scientific input, the 
Agency does not believe it should be a mandatory requirement. 
Subjecting preauthorization plans to an external peer-review process 
may limit RRTs' and Area Committees' ability to utilize 
preauthorization plans. Nonetheless, public and private stakeholders 
may provide input, such as relevant scientific data and information, in 
area and regional contingency planning activities that are open to 
public participation, and RRTs and Area Committees retain flexibility 
to seek public comment or input on any preauthorization plan in 
accordance with applicable statutes and regulations if they believe 
such participation is warranted. EPA notes that the amendments to 
Subpart J include a public notification provision under Sec.  
300.910(i) Reporting of Agent Use to notify the public on chemical and 
biological agents used during a response and to provide certain 
required information.
    In the finalized provision, EPA also made some editorial changes to 
the proposed text for increased clarity in addition to the specific 
changes described above.
    Preauthorization Plan Reviews. At Sec.  300.910(a)(3), EPA is 
finalizing new requirements related to the review and revision, if 
needed, of preauthorization plans. The review requirement is intended 
to ensure that preauthorization plans are actively maintained and 
updated to reflect revisions to the NCP Product Schedule. A periodic 
review, following a regular timeframe, is expected to ensure that the 
preauthorization plan is consistent with any revisions to the NCP 
Product Schedule, and also with revisions to ACPs, facility, and vessel 
response plans. The provision specifically requires reviews to be 
conducted at a minimum, after a major discharge (a ``major discharge'' 
means a discharge of more than 10,000 gallons of oil to the inland 
waters or more than 100,000 gallons of oil to the coastal waters) \3\ 
or after a Spill of National Significance (SONS) relevant to the 
preauthorization plan area; to address revisions of the NCP Product 
Schedule impacting chemical or biological agents that may be 
individually listed within a preauthorization plan; and to reflect new 
listings of threatened and/or endangered species applicable to the 
preauthorization plan area. Review is to be done by the EPA RRT 
representative, the DOC and DOI natural resource trustees, and the RRT 
representative from the state(s) with jurisdiction over the waters of 
the area to which a preauthorization plan applies.
---------------------------------------------------------------------------

    \3\ See 40 CFR 300.5 ``Size classes''.
---------------------------------------------------------------------------

    Several commenters recommended that additional entities should be 
able to participate in the review or comment process during the 
preauthorization plan review cycle (e.g., local and tribal governments, 
the Occupational Safety and Health Administration (OSHA), Department of 
Health and Human Services (DHHS), and the public). EPA reiterates that 
all members of the ACs and RRTs will be afforded an opportunity to 
provide input during a review of a preauthorization plan. However, only 
the RRT representatives from EPA, the state(s) with jurisdiction over 
the waters of the area to which the plan applies, and the DOC and DOI 
natural resource trustees will have the authority to approve, 
disapprove, or approve with modification any revisions to an existing 
preauthorization plan. This approval process is consistent with the 
authorization procedures contained in the former Sec.  300.910(a) and 
should minimize the time necessary for RRT approval of any amendments 
to an existing preauthorization plan. EPA amended the final provision 
by adding the phrase ``The RRT in consultation with the Area 
Committee(s) . . .'' to provide that review of preauthorization plans 
are coordinated with the applicable ACs so that ACs may amend relevant 
ACPs, as appropriate.
    The proposal would have required plans to be reviewed at least 
every five years. Commenters provided a range of feedback on this 
proposed timeframe. EPA recognizes that some commenters supported a 
five-year review cycle, while others suggested shorter, longer, or no 
timeframes. As stated in the preamble to the proposed rule, a five-year 
review cycle is consistent with facility response planning 
requirements. EPA believes the five-year review process has worked well 
for facility response planning and believes preauthorization plans 
should be reviewed and revised in a similar fashion. While EPA still 
believes that a five-year review cycle is a reasonable time frame, the 
Agency also agrees with commenters that an alternative timeframe may be 
appropriate based on regional circumstances. Based on comments, EPA is 
amending the timeframe for preauthorization plan from five years to a 
regular timeframe established by the RRT and documented in the plan. 
Under the revised provision, the Area Committees and RRTs must still 
periodically review, and revise as needed, preauthorization plans. 
However, the Area Committees and RRTs are to establish the timeframe 
and document that timeframe in the

[[Page 38292]]

plan. The Area Committees and RRTs should also provide to the public 
the rationale for establishing said timeframe. EPA believes the revised 
provision is consistent with recommendations in the National Commission 
on the BP Deepwater Horizon Oil Spill and Offshore Drilling report and 
EPA Inspector General report: Revisions Needed to National Contingency 
Plan Based on Deepwater Horizon Oil Spill (Report No. 11-P-0534) for 
periodic reviews of contingency plans. The Agency recognizes that 
development of preauthorization plans can be resource intensive; 
however, once developed, a periodic review, and revision as needed, 
should require much less effort. EPA disagrees that it is overly 
burdensome for RRTs to periodically review, especially with the revised 
provision to provide additional flexibility to the RRTs to establish 
and document their own review schedule.
    EPA also made other changes to the proposed text based on comments 
received. Several commenters suggested additional triggering events for 
preauthorization plan review. The Agency agrees that changes other than 
the trigger events specifically listed in the revised rule may impact 
the conditions under which the use of chemical and biological agents is 
preauthorized. EPA amended the final provision to clarify that the 
triggering events are minimum criteria by including the phrase 
``Reviews must also be conducted in any affected region, at a minimum . 
. .''. Some other commenters stated that reviews should be required 
only after major NCP Product Schedule listing changes to agents that 
may be used in the preauthorization plan area, as opposed to smaller 
less significant administrative changes in the NCP Product Schedule. 
The final provisions provide for preauthorization plans to be reviewed 
to address revisions to the NCP Product Schedule ``impacting chemical 
or biological agents that may be individually listed within a 
preauthorization plan.'' The revision is intended to avoid confusion 
with other, non-substantive changes to the NCP Product Schedule. EPA 
also amended the final provision to add the phrase ``. . . relevant to 
the preauthorization plan area; . . .'' to clarify the provision 
applies to the relevant RRT. The amendment also avoids 
misinterpretation that an RRT not impacted by a major discharge or by a 
Spill of National Significance (SONS) would be required to review their 
preauthorization plan as a result of events outside their region. 
Similarly, EPA amended the final provision by adding the phrase ``. . . 
applicable to the preauthorization plan area'' to clarify the 
applicability of the provision to the relevant RRT and to avoid 
confusion that new listings of threatened and/or endangered species in 
one or more regions requires all RRTs to review their preauthorization 
plans.
(b) Use of Agents Identified on the NCP Product Schedule or Use of 
Burning Agents on Oil Discharges Not Addressed by a Preauthorization 
Plan
    The Agency is revising Sec.  300.910(b) to address the use of 
chemical or biological agents identified on the NCP Product Schedule or 
the use of burning agents in spill situations that have not been 
addressed in preauthorization plans. The revisions clarify the 
authorities and responsibilities of relevant parties and the factors to 
consider when authorizing the use of agents in these situations. The 
revisions also clarify that the provision applies to burning agents as 
well as products that are listed on the NCP Product Schedule. The 
revisions to Subpart J do not change, from the former rule provisions, 
the Agency's fundamental policies regarding the roles of Federal, 
state, Tribal, and local representatives involved in an oil discharge 
response. The revisions maintain from the former rule the OSC's 
authority to authorize the use of chemical or biological agents on the 
oil discharge; the concurrence of the EPA representative to the RRT 
and, as appropriate, the concurrence of the RRT representatives from 
jurisdictional states; and the requirement for consultation with the 
DOC and DOI natural resource trustees.
    As with paragraph (a), the final provisions under paragraph (b) 
specify the parameters that must be considered by the OSC for 
authorizing agent use on a case-by-case basis. Similar to 
preauthorization plans, the scope of the case-by-case authorization may 
include other criteria. EPA is amending the final provisions, relative 
to the proposal, to reflect that the parameters for the use of agents, 
including the quantities requested to be authorized, the duration of 
use, the depth of water, the distance to shoreline and proximity to 
populated areas, are the minimum criteria OSCs must specify by 
inserting the phrase ``for their authorization request to the RRT, at a 
minimum'' in the final regulatory text. The Agency is also replacing 
the phrase ``. . . to be used . . .'' with ``. . . requested to be 
authorized . . .'' to avoid confusion that the OSC must use the 
entirety of the requested quantities, rather than not exceeding the 
quantities authorized by the RRT. The Agency also specifies that OSCs 
should address factors such as environmentally sensitive resources or 
restricted areas that might be impacted, agent inventory and storage 
locations, agent manufacturing capability, availability of equipment 
needed for agent use, availability of adequately trained operators and 
appropriate means to monitor agent use in the environment.
    Some commenters, for various reasons, opposed the use of any agents 
if the agents were not approved in a preauthorization process, even if 
they are listed on the NCP Product Schedule. EPA disagrees with 
commenters that agents should not be authorized for use if they are not 
covered under an approved preauthorization plan. EPA also disagrees 
that case-by-case authorization under Sec.  300.910(b) provides a 
lesser standard for authorization. EPA notes the time critical nature 
of oil discharge responses and that the circumstances surrounding every 
potential discharge situation are not foreseeable or lend themselves to 
pre-planning. Not having a preauthorization plan approved by relevant 
RRT Agencies does not preclude the RRT or OSC from considering chemical 
or biological agent use for response during planning discussions. 
However, neither an approved preauthorization plan under Sec.  
300.910(a) nor case-by-case authorization under Sec.  300.910(b) 
provide for a specific authorization outcome. Authorization of use 
determinations regarding chemical or biological agents are made for 
each individual discharge with consideration of the incident specific 
conditions and must be consistent with CWA section 311(d)(2)(G) and the 
Subpart J regulations. EPA believes there are multiple opportunities 
through regional and area contingency planning and from provisions 
included in the final action that RRTs may use to support case-by-case 
decision making. Contingency planning processes (e.g., RCPs, ACPs, and 
vessel and facility response plans) may inform whether the use of 
chemical or biological agents is appropriate, including during case-by-
case authorization under Sec.  300.910(b). Separate from the regional 
and area contingency planning requirements described in the NCP, EPA 
acknowledges the benefits from advanced planning to support expedited 
decision making. The Agency recognizes that incident-specific 
authorization (i.e., case-by-case authorization) for discharge 
situations

[[Page 38293]]

not covered by preauthorization plans may benefit from planning in 
advance to support expedited decision making. The final action supports 
contingency planning efforts by establishing provisions for RRTs to 
gather supplementary toxicity and efficacy testing, monitoring, or to 
obtain available data or information relative to the use of a chemical 
or biological agent (see Sec.  300.910(g)). RRTs may need additional 
testing or information for situations that fall under Sec.  300.910(b).
    Some commenters advocated for EPA to require concurrence from 
natural resource trustees rather than consultation under Sec.  
300.910(b). Section 1011 of the Oil Pollution Act (OPA) states that 
``The President shall consult with the affected trustees designated 
under section 1006 on the appropriate removal action to be taken in 
connection with any discharge of oil.'' Executive Order 12777 delegates 
this responsibility to the OSC. EPA believes the consultation 
requirement under Sec.  300.910(b) is consistent with statutory 
requirements under OPA and maintains the approach of consultations with 
DOI and DOC natural resource trustees in the final provisions. It is 
important to note that consultation with the trustees does not mean 
that the OSC must obtain the concurrence of the trustees. EPA 
recognizes the decision to use a chemical or biological agent is highly 
dependent upon specific circumstances, locations, and conditions which 
must be assessed by the OSC and relevant RRT member agencies. The EPA 
and the state RRT representative(s), and DOC and DOI natural resource 
trustees, are in a unique position to understand local conditions and 
to collect and coordinate quickly the necessary local information.
    Several commenters addressed the proposed removal of the term 
``when practicable'' from the former rule text regarding consultation 
with the DOC and DOI. Some supported the removal of this language, 
stating that consultation and concurrence should always be pursued 
during case-by-case response decision making, since the situations may 
present unique challenges. Other commenters opposed the removal of the 
term ``when practicable'' and recommended leaving the language as is, 
asserting that it has worked well for years and that continued 
flexibility in the approval process is warranted. Commenters suggested 
that delays in discharge mitigation may occur when waiting for 
consultations, and that EPA should establish a consultation time limit. 
The Agency believes that the case-by-case decision making should 
include consultations with natural resource trustees since these 
discharge situations may present unique challenges when selecting a 
response option that involves chemical or biological agents. EPA also 
notes that OPA 1011 (33 U.S.C. 2711) provides for consultations with 
the affected trustees on the appropriate removal action to be taken in 
connection with an oil discharge. Furthermore, Sec.  300.305(e) 
provides that the OSC shall consult with the affected trustees on the 
appropriate removal action to be taken. EPA disagrees with concerns 
that seeking natural resource trustee input could result in delays in 
the use of a chemical or biological agent. While EPA supports timely 
decision making, it does not interpret timely decision making to 
necessarily mean concurring with an OSC request to authorize the use of 
a chemical or biological agent; consultation can allow for a more 
immediate exchange of information and ideas when addressing a time-
critical response. EPA disagrees with establishing a consultation 
timeframe (e.g., 36 or 48 hours) for natural resource trustees and 
notes that it is contrary to the intent of seeking input on a removal 
action (e.g., chemical agent use) prior to its use. While the Agency 
recognizes the time-critical nature of decision making during a 
response, advances in communication technology (e.g., smart phones, 
email) provide OSCs with increased capabilities to communicate quickly. 
The Agency believes it is reasonable to expect an OSC to be able to 
notify and explain the circumstances requiring use of the certain 
agents to natural resource trustees in a timely manner. The final 
revisions to Sec.  300.910(b) include removing the phrase ``when 
practicable'' with respect to consultation with the DOC and DOI natural 
resource trustees. EPA believes that the final revisions to Subpart J 
better align with the statutory and regulatory provisions.
    A commenter supported the provision to authorize only products that 
are appropriate and used for their intended purpose under Sec.  
300.910(b). To provide additional editorial clarity, the revised 
provision replaces ``. . . chemical or biological agents identified on 
the Schedule for their intended purpose . . .'' with ``. . . for the 
specific purpose for which they were listed . . .''
    A commenter expressed opposition to the requirement in Sec.  
300.910(b) to document the parameters for use of agents when there is 
not a preauthorization plan, emphasizing the need for quick decision 
making, noting that the information is already required elsewhere (33 
CFR parts 154 and 155) or unnecessary at the time when action is 
required. Another commenter recommended revisions to the rule text 
which would increase the specificity of these parameters. While EPA 
supports timely decision making, EPA does not interpret timely decision 
making to be inhibited by documentation requirements that both inform 
RRT Agencies with roles and responsibilities under the NRT for chemical 
and biological agent use and support the OSC's decision making. 
Furthermore, EPA recognizes the request that Sec.  300.910(b) increase 
the specificity of the parameters for the use of products. EPA agrees 
that site-specific factors are an important consideration when 
authorizing the use of a chemical or biological agent. For example, 
environmental characteristics such as local ocean water circulation 
patterns may affect oil transport and therefore influence whether 
dispersants are authorized for use, and if so, to what extent. Even 
within a chemical agent category (e.g., dispersants), environmental 
conditions may vary locally, if not seasonally. EPA agrees that such 
information, if available, should be documented during case-by-case 
authorization of use. However, there may be several site-specific 
factors to consider where such information may be unavailable; the fact 
that information is unavailable, including assumptions used in lieu of 
unavailable information, should also be documented. EPA believes the 
relevant Agencies should be afforded flexibility in considering 
relevant factors when authorizing chemical and biological agents and to 
tailor the scope of the authorization with consideration of site-
specific conditions. EPA does not believe that it is appropriate or 
feasible to include all potential site-specific information within the 
regulation. Rather, relevant site-specific factors to consider during 
case-by-case authorization are more appropriately addressed through 
development of guidance materials as appropriate, as well as through 
informed decision making.
    A commenter requested that EPA provide notification within 24 hours 
of spills and product use to health care providers and the public, in 
the language(s) spoken in the impacted region. The final action 
includes new provision under Sec.  300.910(i)(2) that requires the OSC 
to provide notification to the public in support of Sec. Sec.  
300.135(n) and 300.155(a) and (b). Under Sec. Sec.  300.135(n) and 
300.155(a) of the NCP, the OSC should ensure all appropriate public and 
private interests are kept informed and that their

[[Page 38294]]

concerns are considered throughout a response, to the extent 
practicable. However, EPA did not include a specific requirement to 
provide the notification in the language(s) spoken in the impacted 
region. The reporting provision does not preclude including public 
notification in different languages and EPA encourages consideration of 
impacted communities when communicating response actions, including 
developing materials in languages understood by local communities. 
However, it is impractical to require an OSC to provide notification in 
all language(s) spoken in the impacted region during an emergency 
response where chemical or biological agents may be authorized as the 
Agency cannot predict where and when an oil discharge occurs. The OSC 
retains discretion to provide public notification in additional 
languages if the OSC determines it to be appropriate.
    A commenter stated that changing the language in this section, from 
``navigable waters threatened'' to ``waters and adjoining shorelines 
threatened'' creates additional barriers to use dispersants and limits 
OSC actions. Another commenter stated that the proposed updates 
conflict with E.O. 12777 and the CWA because they do not distinguish 
between coastal and inland zones for planning and operational decision 
making reserved for the area where the OSC is directing the response. 
EPA believes that the amended provision provides consistency with the 
provisions in Sec.  300.910(a); the Agency is not limiting the 
jurisdictional scope of the NCP as provided under section 311(b)(3) of 
the CWA.
    In the final rule provision, EPA also made some editorial changes 
to the proposed text for increased clarity in addition to the changes 
described above.
(c) Burning Agents
    EPA proposed to replace the current authorization of use for 
burning agents in Sec.  300.910(c) to provide greater flexibility to 
OSCs for authorizing the use of burning agents. Specifically, the 
Agency proposed that OSCs may authorize the use of burning agents for 
authorized in-situ burns. EPA received comments that supported the 
proposed amendments, that requested clarification of the proposed 
changes, and that raised concerns regarding the consultation and 
concurrence role of the RRT. Based on public comments received, EPA is 
not revising Sec.  300.910(c) as proposed, but is instead reserving 
Sec.  300.910(c) and is amending the regulatory text in Sec.  
300.910(a) and (b) to specifically clarify that Sec.  300.910(a) and 
(b) apply to the authorization of use of burning agents. For 
preauthorization requirements under the Sec.  300.910(a), the final 
provisions maintain the previous approach to address burning agents. 
Under Sec.  300.910(b), the final revisions incorporate burning agents 
in the case-by-case authorization, along with chemical and biological 
agents listed on the NCP Product Schedule. This approach eliminates the 
need to have a separate regulatory requirement for burning agents for 
case-by-case authorizations. To maintain consistency with the 
regulation's previous structural organization familiar within the 
response community, EPA is reserving Sec.  300.910(c).
    Several commenters expressed general concern about or opposition to 
the use of burning agents and the use of in-situ burning as a spill 
response method. Additionally, several commenters expressed concern 
regarding various environmental impacts, particularly the impacts to 
aquatic and benthic environments and to air quality, from the use of 
burning agents and in-situ burns. While burning agents are used in de 
minimis quantities relative to the discharged oil they would be applied 
to, and when considering the response as a whole, EPA recognizes that 
the use of burning agents and in-situ burning may have environmental 
impacts. However, Subpart J does not state or imply that chemical or 
biological agents are preferred over other response options. Neither 
the current nor final rule mandates the use of chemical or biological 
agents, nor removes them from consideration as a response option. 
Rather, the Subpart J regulations provide a framework for authorizing 
their use, as appropriate. EPA believes that the circumstances 
surrounding oil discharges may vary and therefore there are many 
factors influencing the choice of response methods. During a response, 
in-situ burning may be considered along with other response options. 
Burning agents may be used as part of the in-situ burning process. 
Depending on incident-specific conditions, timely deployment of several 
response options may occur while tradeoffs are evaluated to determine 
which response option (or combination thereof) addresses response 
objectives. In-situ burning may reduce the need for collection, 
storage, transport, and disposal of recovered material by converting a 
fraction of the oil to gaseous combustion products. However, the Agency 
also recognizes that combustion products may include smoke or soot in 
addition to carbon dioxide and water. Monitoring of in-situ burns 
through information collection can inform decision making during a 
response. EPA recognizes comments regarding air quality concerns, 
including generation of particulates and toxic gases (specifically VOCs 
and PAHs) and potential impacts on communities. Beyond Subpart J, the 
NCP includes provisions for OSCs to address health and safety concerns 
of workers under Sec.  300.150. The NCP recognizes that the OSC may 
call upon DHHS to assist in determining public health threats 
throughout any response action (see Sec.  300.135(h)). In addition, the 
OSC may monitor air quality to identify potential public health 
concerns from air residues from in-situ burning. EPA also recognizes 
that in-situ burning of crude petroleum oil may result in residues that 
are not only emitted to the air, but are also entrained in the water 
column. In-situ burning that is initiated using burning agents may lead 
to the possibility for organisms dwelling in the water column to come 
in physical contact with residues from the combusted oil. While the 
burning agent itself is expected to be consumed through combustion, the 
Agency believes that the harmful impact to an organism caused by 
physical contact (e.g., ingestion by fish) with the residue from 
combusted oil from an in-situ burn initiated by a burning agent is just 
as concerning as the effects of any residual burning agent. Subpart J 
does not mandate the use of burning agents. Rather, it provides a 
framework to consider their authorization by RRTs and OSCs. EPA 
recognizes the commenters' concerns regarding potential environmental 
impacts from in-situ burning initiated by burning agents. The final 
provisions under Sec.  300.910(a) and (b) maintain the current approach 
that keeps RRTs, including state(s) and natural resource trustees, 
actively involved in the authorization of burning agents for in-situ 
burns. EPA believes that the fact that an in-situ burn initiated by a 
burning agent may cause oil to enter the water column is sufficient 
reason for RRTs or OSCs to consider whether supplemental monitoring of 
in-situ burn residue is appropriate. In-situ burning operations are 
subject to OSC oversight, with OSC authorization required for burning 
agent use.
    Some commenters supported not listing burning agents on the NCP 
Product Schedule, and several other commenters disagreed, stating that 
burning agents, like other spill response agents, should be listed on 
the schedule and be regulated with the same efficacy, toxicity, and 
public ingredient

[[Page 38295]]

disclosure standards as other listed agents. EPA recognizes comments 
supporting and opposing the listing of burning agent products on the 
NCP Product Schedule. EPA recognizes burning agents as a type of 
chemical agent that must be authorized for use in accordance with the 
provision under Sec.  300.910. EPA disagrees with the comment that the 
increasing frequency of burning agent use contradicts the argument that 
the small quantities make listing considerations unnecessary. The 
Agency believes that burning agents are used in de minimis quantities 
relative to the discharged oil they would be applied to, and when 
considering the response as a whole, and are expected to rapidly burn 
off during use, which serves to remove them from the water. Burning 
agents are generally added to an oil slick to initiate an in-situ burn 
after which the oil slick itself is expected to maintain the burn. 
Although EPA is maintaining the current approach of not specifically 
listing burning agent products on the NCP Product Schedule, RRTs may 
still gather additional information on burning agents and monitor their 
use under Sec.  300.910(g) Supplemental Testing, Monitoring, and 
Information. EPA agrees with comments that an in-situ burn may raise 
concerns regarding environmental impacts and believes that maintaining 
the current approach keeps RRTs appropriately and actively involved in 
the decision making to authorize the use of burning agents used in in-
situ burning. Furthermore, provisions within the NCP but outside the 
scope of this rulemaking include requirements for OSCs to address 
health and safety concerns of workers and the public. For example, 
Sec.  300.150 provides requirements to address worker health and 
safety.
(d) Temporary Exception
    EPA is revising Sec.  300.910(d) to clarify the intent of the 
existing exception to the preauthorization and case-by-case 
authorization of use regulations. The Agency is including the term 
``temporary'' as a qualifier to the final provision's title, to reflect 
that there is a time limitation for operating under this provision 
during a response. The temporary exception provision provides that the 
OSC may authorize the use of any chemical or biological agent, whether 
it is identified or not on the NCP Product Schedule, without obtaining 
the concurrence of the EPA RRT representative and, as appropriate, the 
RRT representatives from the state(s) with jurisdiction over the waters 
and adjoining shorelines threatened by the release or discharge, and 
without consultation with the Department of Commerce and the Department 
of the Interior natural resource trustees. That is, it allows OSCs to 
authorize the use of any agent when it is determined that the use of 
the agent is necessary to prevent or substantially reduce an imminent 
threat to human life that cannot be immediately addressed by other 
procedures or provisions of the NCP. The Agency believes that the 
protection of human life is the primary consideration in responding to 
an oil discharge. Accordingly, the OSC must have the ability to use any 
agents that would effectively and expeditiously mitigate the threat to 
human life, particularly in situations where chemical agents on the NCP 
Product Schedule are not immediately available. The final provision 
includes the phrase ``and without consultation with the Department of 
Commerce and the Department of the Interior natural resource trustees'' 
to further clarify the OSC authority under this provision relative to 
concurrences and consultations otherwise required for the authorization 
of chemical and biological agent use under Sec.  300.910(a) or (b). 
However, this exception cannot be used as a substitute for compliance 
with Sec.  300.150, including the use of personal protective equipment, 
or when there is sufficient time to seek authorization in accordance 
with Sec.  300.910(a) or (b). EPA notes that the temporary exception 
does not affect other authorities available to an OSC under the NCP, 
separate from Subpart J, to take actions to address a threat to human 
life, such as ordering evacuations or repositioning equipment and 
personnel.
    The exception provides for authorization of agent use to occur, 
within a limited timeframe and for the specific purpose of preventing 
or substantially reducing an imminent threat to human life, if there is 
insufficient time to obtain the required concurrences for 
preauthorization or authorization of use for products on the NCP 
Product Schedule under paragraphs (a) and (b) respectively. To more 
clearly describe when the exception must not be used, EPA amended the 
final provision to add the phrase ``. . . or when there is sufficient 
time to seek authorization in accordance with paragraphs (a) or (b) of 
this section.'' The provision is not intended for the OSC to override 
an authorization decision of an RRT on chemical and biological agent 
use for the specific incident conditions. The revision in the final 
action is consistent with the intent of the provision as described in 
previous NCP final rulemakings (see 55 FR 8808, March 8, 1990).
    The Agency recognizes oil discharges generally will not pose 
threats to human life of an immediacy or magnitude that would warrant 
invoking the temporary exception provision. However, EPA believes that 
there may be unforeseen circumstances where an oil discharge poses an 
immediate life-threatening situation, and for which an OSC must have 
the ability to use agents that could effectively and expeditiously 
mitigate the imminent threat to human life. The Agency interprets a 
situation that poses an imminent threat to human life to be one which 
could reasonably be expected to cause death or serious physical harm 
such that a part of the body would be severely damaged. Further, the 
Agency also interprets that this imminent threat to human life must be 
immediate for this exception provision to be applicable, meaning that 
it is expected that death or serious physical harm could occur 
immediately or before any other action can be otherwise implemented. 
The former language in Sec.  300.910(d) used the terms ``hazard'' and 
``threat'' interchangeably. The amended regulatory language replaces 
``hazard'' with ``threat'' for consistency and to establish the intent 
and expectation of the use of the exception more clearly.
    Several commenters recommended that the Agency remove the exception 
provision. These commenters claimed that it is unclear what 
circumstances would occur requiring the OSC to decide to apply 
dispersants to protect human health; the exceptions are not necessary; 
and that the rarity of use of this exemption is evidence that most oil 
discharges do not pose threats to human life of an immediacy and 
magnitude that warrant the exception provision. Some commenters 
suggested that without more direction, strict guidelines, or guidance 
from the Agency regarding when this provision could be invoked, the 
proposed rule allows for potential overreach in the use of the 
exception authority. The Agency recognizes the comments opposing the 
exception provision and the selection of spill response agents to focus 
on human health risks. Nonetheless, the Agency reiterates that 
protection of human life is the primary consideration in responding to 
an oil discharge. EPA notes that the other authorities available to an 
OSC under the NCP to take actions to address a threat to human life, 
such as ordering evacuations or repositioning equipment and personnel, 
are not affected by the revisions to the temporary exception provision 
in this final action. The Agency is maintaining

[[Page 38296]]

the exception provision and is finalizing the proposed amendments with 
modifications to further clarify the provision's intent and address the 
concerns regarding potential overreach. The finalized exception 
provision provides the OSC this authority only in circumstances to 
prevent or substantially reduce an unforeseeable threat to human life 
that cannot be immediately addressed by other procedures or provisions 
of the NCP. Additionally, the Agency added the term ``individual 
circumstances'' to provide the OSC flexibility to address one or more 
separate unforeseen threats to human life at any time during a 
response. The intent behind this temporary exception provision is to 
eliminate potential delays in responding to life-threatening 
situations. The modifications finalized in this action do not change 
previous policy but rather clarify the intent and scope of the 
exception. While the Agency expects this temporary exception to be 
rarely needed, it continues to believe it is appropriate that the NCP 
include a temporary exception provision to capture unforeseen and 
immediate life-threatening situations. However, it is important to note 
that, while all threats to human life are health and safety issues, not 
all health and safety issues in turn pose an immediate threat to human 
life. The Agency stresses the intent is for this temporary exception to 
be applicable only to those imminent life-threatening situations which 
cannot be addressed through the implementation of other procedures or 
provisions in the NCP and has amended the final provision accordingly. 
The final provision also clarifies that the exception must not be used 
as a substitute for compliance with Sec.  300.150 of this part, 
including the use of personal protective equipment.
    Some commenters suggested that the OSC should only be allowed to 
use products that are listed on the NCP Product Schedule under the 
exception; a commenter stated that use of products not on the NCP 
Product Schedule negates the purpose of contingency planning, and that 
the OSC should only be able to authorize the use of agents listed on 
the NCP Product Schedule when the agent is necessary to protect human 
life. Some commenters expressed concerns regarding use of agents 
without peer-reviewed scientific or technical evidence to show that the 
dispersant chemical is safe for humans, wildlife, or the ecosystem. A 
commenter noted that if the work required to add a product to the NCP 
Product Schedule was not complete prior to a spill then responders 
should not have the option of bypassing the process by using the 
exception clause. The Agency shares the concern for any use of chemical 
or biological agent products not listed on the NCP Product Schedule. 
The fact that the exception applies broadly to include chemical or 
biological agents not identified on the NCP Product Schedule 
necessitates the temporary nature of the exception. The Agency 
reiterates that the OSC authorities provided under this temporary 
exception are not intended to allow bypassing or circumventing the 
processes established under Subpart J. Specifically, the temporary 
exception is not intended to bypass those provisions for testing and 
listing chemical and biological agent products established under Sec.  
300.915. The provisions for testing and listing chemical and biological 
agent products on the NCP Product Schedule are intended to ensure that 
these products have met baseline efficacy and toxicity requirements, 
promoting the use of safer and more effective spill mitigating 
products. The limited timeframe addresses concerns regarding the extent 
of the temporary exception applicability, and promptly brings back into 
the decision making process the required environmental considerations 
that are built into the authorization of use provisions under Sec.  
300.910(a) and (b), including the use of chemical and biological agent 
products only when they are listed in the NCP Product Schedule.
    Several commenters requested a 24-hour (or shorter) timeframe 
instead of 48 hours for OSC product use notification and concurrence. 
These commenters indicated that a 48-hour window for the OSC to operate 
without concurrence seemed excessive, and that members of the RRT and 
natural resource trustees should be engaged in this type of decision 
making as soon as is feasible, as well as OSHA and the DHHS for human 
health impacts. They noted that with advances in communication 
technology, a 24-hour timeframe for OSC notification should be 
attainable. The Agency acknowledges the support for specifying a 
timeframe for the temporary exception to best clarify the intent that 
this provision is to be a temporary and limited measure. Based upon 
comments, the Agency is finalizing the provision's language to modify 
the proposed 48-hour timeframe for which the temporary exception would 
be applicable. The Agency is finalizing a further limited timeframe of 
24 hours, recognizing that those entities with concurrence and 
consultation roles under Subpart J, and who bring relevant 
environmental expertise to these types of decision making, should 
indeed be engaged as soon as possible. Additionally, this change 
acknowledges the advances in communications since the exception 
provision was last revisited under the NCP in 1994. Technologies are 
now available that allow the OSC to notify the EPA RRT representative, 
the state(s), and natural resource trustees of this decision within the 
24-hour timeframe, if not sooner. This 24-hour timeframe further 
addresses concerns regarding the extent of the temporary exception's 
applicability, and promptly brings back into the decision making 
process the required environmental considerations that are built into 
the authorization of use provisions under Sec.  300.910(a) and (b). The 
final amendments also include the phrase ``after initial application'' 
to further clarify when the 24-hour timeframe begins. The timeframe in 
the final rule balances the need to address an unforeseen imminent 
threat to human life during a response with the roles and 
responsibilities of EPA, the state(s), and DOI and DOC natural resource 
trustees regarding chemical or biological agent use under Sec.  
300.910(a) or (b). EPA notes that the temporary exception provision 
does not affect other authorities available to an OSC under the NCP, 
separate from Subpart J, to take actions to address a threat to human 
life, such as ordering evacuations or repositioning equipment and 
personnel.
    Many commenters expressed support for the notification requirements 
in Sec.  300.910(d). A commenter stated that the notifications should 
be made available to the public for awareness of the imminent threat to 
human life and the use of products to address the threat. Some other 
commenters cited concern regarding the notification requirement and 
recommended that there should not be any limits on the OSC's ability to 
make decisions protecting human life. A commenter asserted that the 
requirements are inappropriate, and that the Agency has not adequately 
justified the proposed notification requirements in terms of additional 
benefits compared with the existing requirements. The Agency recognizes 
the concerns regarding the notification requirements within the 
temporary exception. The final regulatory language includes the 
requirement for the OSC to notify as soon as possible, and to document 
the circumstances and the reasons for use of the agent, to the EPA RRT 
representative and, as appropriate, the RRT representatives from the 
affected state(s) and the DOC and DOI natural resource

[[Page 38297]]

trustees. While the Agency had proposed ``immediate'' notification, it 
believes that requiring notification ``as soon as possible'' is 
adequate in conjunction with a reduction in the timeframe for which 
this exception is applicable from 48 hours to 24 hours. The expectation 
is that this information will be provided to those federal and state 
entities with concurrence and consultation roles within a timeframe to 
consider further chemical or biological agent use. While the Agency 
recognizes the comment regarding limitations on the OSC's ability to 
protect human life, it does not believe that the notification 
requirement to the RRT members in any way hinders the OSC's ability to 
make decisions to protect human life. The Agency notes the notification 
provision does not apply to other authorities available to an OSC under 
the NCP, separate from Subpart J, to take actions to address a threat 
to human life. The Agency modified the regulatory language by changing 
the ``immediate'' reporting requirement terminology to ``as soon as 
possible,'' which still provides for the information to promptly be 
provided to those entities with concurrence and consultation roles. 
Additionally, the regulatory language was modified to add the phrase 
``authorized pursuant to this paragraph'' to clarify the documentation 
requirement under the temporary exception.
    Some commenters suggested that exceptions may not be protective of 
human health and safety, expressing concern with the replacement of the 
term ``worker safety'' with ``human life.'' These commenters indicated 
that the Agency should clarify the difference between threats to worker 
safety and protection of human life and indicate why the proposed 
change was needed. Other commenters requested that the Agency revise 
the section to clearly include worker safety, or to clarify that 
``worker safety'' is considered the same as ``the protection of human 
life.'' The Agency disagrees that all worker safety considerations in a 
response would necessarily equate to threats to human life. EPA 
recognizes that all responses present multiple health and safety 
challenges. The Agency reiterates that, while all threats to human life 
are worker health and safety issues, not all worker health and safety 
issues pose an immediate threat to human life. The temporary exception 
provision is intended to capture unforeseen and immediate life-
threatening situations. For those rare and unexpected situations which 
cannot be immediately addressed by any other means, this temporary 
exception provision allows the OSC to consider whether the use of an 
agent is appropriate. The exception provision being amended by this 
action did not previously include the term ``worker safety,'' but 
rather speaks to human life. Similarly, the Agency did not include the 
term ``worker safety'' in the proposed rule. The Agency is clarifying 
the term relative to the temporary exception to mean a ``threat'' to 
human life. While the provision before the amendment used the terms 
``hazard'' and ``threat'' interchangeably, the final action replaces 
``hazard'' with ``threat'' for consistency and to clearly establish the 
intent not to broadly cover ``worker safety.'' Section 300.150 of the 
NCP establishes worker health and safety provisions to ensure these 
concerns are addressed during all response actions. Specifically, the 
provisions provide for an occupational safety and health program, in 
compliance with applicable worker health and safety provisions of the 
Occupational Safety and Health Act of 1970 (OSH Act), to be available 
for the protection of workers at the response site. Among the OSH Act 
provisions are requirements for a site-specific health and safety plan 
that must include, at a minimum, employee training, personal protective 
equipment, medical surveillance, and air monitoring. In this amendment, 
the Agency is clarifying the regulatory text to specifically state that 
the exception is not to be used as a substitute for compliance with 
Sec.  300.150 of this part, including the use of personal protective 
equipment; Sec.  300.150 of this part is outside the scope of this 
action.
    In the finalized provision, EPA also made some editorial changes to 
the proposed text for increased clarity.
(e) Prohibited Agents or Substances
    Sinking Agents. The Agency is maintaining in Sec.  300.910(e)(1) 
the current prohibition for the authorization of use of sinking agents 
and has clarified in the regulatory text that the prohibition applies 
to any chemical agent, biological agent, or any substance that is used 
to directly sink the oil to the bottom of a water body. EPA believes 
that the final revisions better reflect EPA's intent and avoid 
potential confusion with the use of other chemical and biological 
agents. The Agency believes the prohibition on sinking agents is 
appropriate in all cases and is consistent with the existing 
restriction in Sec.  300.310(b) of NCP Subpart D. EPA notes that the 
final provision applies to sinking agents which are defined under Sec.  
300.5 as ``substances,'' and not included in the definitions of 
chemical or biological agents. The final action modifies the section 
title to include ``substances'' to provide greater clarity to the 
applicability of the section.
    Commenters recommended that the proposed rule language be further 
amended to recognize the potential for some products to behave as 
sinking agents depending on environmental conditions; they suggested 
that the description of the prohibited agents should include those with 
the potential to cause oil to sink based on the receiving environment. 
Commenters also suggested that the Agency should define the difference 
between ``dispersing below the surface'' and ``sinking.'' The purpose 
of certain chemical agents (e.g., dispersants) is to entrain oil into 
the water column; the definition of dispersants in the previous and 
final rules acknowledge dispersants entrain oil ``into the water 
column.'' EPA recognizes that, while these products are intended to 
transfer oil into the water column, they are distinct from sinking 
agents. To reflect commenter concerns, the Agency revised the proposed 
text, so that the finalized amendment prohibits ``sinking agents, or 
any other chemical agent, biological agent, or any substance that is 
used to directly sink the oil to the bottom of a water body.'' Refer to 
the section on definition of sinking agents in this preamble for 
further discussion.
    Some commenters requested a requirement for a screening test or 
standard functional approach to determine if an agent is a sinking 
agent. A commenter noted that the prohibition of sinking agents is 
undermined if a product's propensity to act as a sinking agent is only 
discovered after the product has been used in a discharge event. The 
commenter further suggests that a test is needed to identify products 
that are otherwise categorized as dispersants or other agents, but 
which have the effect of submerging and sinking oil, because these 
products should also be recognized as sinking agents and be prohibited. 
EPA acknowledges the commenters' request for a screening test or 
standard functional approach to determine if an agent is a sinking 
agent. While the Agency is not including such a test or functional 
approach in this final action, the provisions finalized under Sec.  
300.915(a)(12) include that product manufacturers must provide physical 
and chemical properties such as specific gravity as part of the product 
submission package for listing on the NCP Product Schedule. In 
addition, the final rule at Sec.  300.910(g) provides that the RRT may 
require available data or

[[Page 38298]]

information about agents be provided during planning or at the time of 
a response, allowing for modifications to the response as necessary. 
EPA believes responses to oil discharges are site-specific, and this 
approach provides flexibility to consider site-specific conditions.
    Nonylphenol (NP) or nonylphenol ethoxylates (NPEs). The Agency had 
also proposed to add a prohibition from listing on the NCP Product 
Schedule and from authorizing use of any chemical or biological agents 
that contain nonylphenol (NP) or nonylphenol ethoxylates (NPEs) as 
components. However, the Agency has determined that chemical agents 
that have either NP and NPEs as components will not be prohibited from 
use under this final rule.
    EPA proposed prohibiting NP and NPE to reflect the Agency's 
concerns for these substances as presented in EPA's Nonylphenol and 
Nonylphenol Ethoxylates Action Plan. The Agency proposed a Significant 
New Use Rule (SNUR) in September of 2014, which has not been finalized 
to date. The Agency is not finalizing the 2015 Subpart J proposed 
amendment on NP and NPE since final action has not been taken on the 
SNUR. EPA is reserving Sec.  300.910(e)(2) in lieu of finalizing the 
proposed amendments. However, EPA notes that the final provisions of 
this rulemaking limit the scope of information that can be claimed as 
Proprietary Business Information (PBI) as part of a product submission. 
Information of product components will be available for RRTs and OSCs 
to consider as appropriate when reviewing authorization of use 
scenarios, including whether those products contain NP or NPE 
substances.
    Other agents. Commenters on the proposed rule requested 
prohibitions on the use of chemical or biological agents that are 
formulated with any endocrine disrupting compounds (EDCs); that degrade 
in a manner such that its byproducts contain prohibited substances; 
that contain known or suspected human health hazards as listed on the 
material safety data sheet (MSDS) or safety data sheet (SDS); or that 
contain known or suspected carcinogens, hemolytic chemicals, mutagens, 
neurotoxins, teratogens, and that demonstrate human and aquatic 
toxicity. The Agency recognizes that there may be other substances 
that, given their use circumstances, may be of concern. The Agency has 
focused this final action on maintaining the existing prohibition of 
sinking agents. The Agency recognizes that there may be environmental 
and health concerns associated with any response. While the final 
action includes product information requirements focused on 
environmental impacts, the information may also be used by OSCs to 
address broader health and welfare concerns. For example, the final 
rule contains a provision to include the SDS for the product as part of 
the submission package (see Sec.  300.915(a)(5)). The final rule also 
includes a requirement under Sec.  300.915(a)(11) for the submitter to 
provide for environmental fate information on the persistence, 
bioconcentration factor, bioaccumulation factor, and biodegradability 
of the product and all of its components in the environment. Further, 
the final provisions at Sec.  300.950 limit the information that can be 
claimed as Proprietary Business Information (PBI) as part of a product 
submission for listing on the NCP Product Schedule, so that product 
manufacturers will not be allowed to withhold information on product 
components. Thus, product component information will be available for 
RRTs and OSCs to consider as appropriate, for planning and 
authorization of use within the respective Area or Regional Contingency 
Plans. These considerations may include, for example, whether products 
contain substances of concern to human health or aquatic hazards. The 
final provision also includes updated ecotoxicity testing protocols and 
the listing thresholds for ecotoxicity.
    A commenter expressed opposition to the proposal's opening language 
which they believed would allow the exception clause in Sec.  
300.910(d) to apply to Sec.  300.910(e) and allow the OSC to use a 
prohibited product. The Agency disagrees with the commenter's 
interpretation of the proposed regulatory text in Sec.  300.910(e). The 
temporary exception under Sec.  300.910(d) applies to a ``chemical or 
biological agent.'' While subject to the provisions under Subpart J, 
the definitions of chemical or biological agents do not include sinking 
agents. Therefore, sinking agents are not included in the temporary 
exception under Sec.  300.910(d). Nevertheless, in the final action, 
EPA is not including the proposed opening clause to the provision, 
``Notwithstanding paragraph (d) of this section . . .'' because it is 
unnecessary and to avoid the misunderstanding described by the 
commenter.
(f) Storage and Use of Agents Listed on the NCP Product Schedule
    The Agency is adding a new provision, Sec.  300.910(f), to 
complement the existing information requirements for the person or 
entity submitting a product for listing (``submitter'') in Sec.  
300.915. The new requirements focus on the use of this information by 
the responder and the OSC. EPA has organized the final provisions into 
subsections (f)(1) and (f)(2) for greater clarity. Specifically, the 
provision at Sec.  300.910(f)(1) requires the OSC to only authorize for 
use those products listed on the NCP Product Schedule that are 
documented and certified by the responsible party or its representative 
to have been stored under the conditions specified by the submitter of 
the product for listing, including the maximum, minimum and optimum 
temperatures, humidity and any other relevant conditions, and whose 
date of use does not exceed the expiration date listed on the 
container's label, unless otherwise specified for expired products as 
provided in Sec.  300.910(f)(2), at the time of the incident. Under 
Sec.  300.910(f)(2), the OSC may authorize for use products listed on 
the NCP Product Schedule that exceed their expiration date after the 
responsible party or its representative documents and certifies that 
the expired product has been stored under the conditions provided by 
the submitter under Sec.  300.915(a)(6) and still meets the applicable 
efficacy and toxicity-listing provisions under Sec.  300.915 based on 
testing of representative samples within the previous 12 months. The 
title of the provision has been changed from the proposed ``Storage and 
Use of Agents'' to ``Storage and Use of Agents Listed on the NCP 
Product Schedule'' to provide more clarity on its scope.
    Some commenters recommended that the shelf life for biological 
agents and bioremediation agents be limited to one year since living 
products will degrade more quickly than chemical agents. The Agency 
notes that the product shelf life provision does not provide separate 
consideration for biological and bioremediation agents from chemical 
agents. However, the final rule amended the proposed five-year testing 
timeframe to recognize products may have shorter shelf lives as 
evidenced by some products currently on the NCP Product Schedule. The 
shelf life is provided by the product manufacturer based on the 
inherent properties of the product. The product manufacturer is 
required to submit documentation supporting the shelf life 
determination. Furthermore, the final provisions include a requirement 
for the responsible party or its representative to document and certify 
that an expired product still meets the applicable efficacy and 
toxicity provisions for listing under

[[Page 38299]]

Sec.  300.915 based on testing of representative samples within the 
previous 12 months for an OSC to consider authorizing products beyond 
their expiration dates.
    Commenters suggested that other oil spill mitigating devices and 
substances should be included in this provision for consistency with 
other sections. The Agency disagrees the provisions under Sec.  
300.910(f) should include other oil spill mitigating devices and 
substances, other than the specific product categories of chemical and 
biological agents already identified for listing on the NCP Product 
Schedule. The final rule amends the section title and regulatory 
paragraph to clarify that the provision is applicable to agent products 
``Listed on the NCP Product Schedule.''
    Commenters also suggested that the rule require disposal of expired 
chemical agents. Some commenters suggested that the Agency should 
require the disposal of all products once the expiration date has 
passed, regardless of any testing. The Agency disagrees with the 
request to include provisions addressing the disposal of expired 
chemical agents in the final rule. Disposal of oil and contaminated 
materials recovered in cleanup operations is addressed in Sec.  300.310 
of the NCP. While the final provisions provide for the retesting of 
expired products, the disposal of products, including expired products, 
is outside the scope of this action.
    Some commenters recommended that no additional requirements be put 
in place for product shelf life, other than what is recommended by the 
manufacturer. However, EPA is finalizing re-testing provisions to 
provide flexibility for chemical or biological agents to be considered 
for use past their designated shelf life provided they still meet 
efficacy and toxicity testing requirements. The provision under Sec.  
300.910(f)(2) is voluntary in that it does not require expired products 
to be retested but is an option for the responsible party if they want 
an OSC to be able to authorize their use.
    Commenters suggested that there is no justification for mandating a 
shelf life that could limit the use of stockpiles that remain viable 
and effective. EPA did not mandate a specific shelf life for products 
listed on the NCP Product Schedule. However, EPA believes that users of 
products should follow the manufacturer's storage conditions and shelf 
life recommendations, as submitted according to Sec.  300.915(a)(6) and 
(a)(7). Based on public comments, EPA made changes to the proposed re-
testing provisions in the final amendments. The final provisions 
provide the OSC with the discretion to authorize products listed on the 
NCP Product Schedule that exceed their expiration date. However, this 
discretion is only available after the responsible party or its 
representative documents and certifies that the expired product still 
meets the applicable efficacy and toxicity provisions for listing under 
Sec.  300.915, based on testing of representative samples within the 
previous 12 months.
    Some commenters expressed support for retesting requirements but 
indicated that efficacy of the product is the only relevant endpoint 
for testing regardless of age. The commenters recommended that there is 
no scientific justification for toxicity re-testing, and that only 
effectiveness testing should be conducted rather than all of the tests 
described in Appendix C. A commenter stated that testing requirements 
should allow for acceptable levels of variability in efficacy results, 
recommending an allowable 10% variance in effectiveness test results. 
The Agency disagrees with the commenters' concerns that effectiveness 
testing is the only retesting that should be considered and that the 
efficacy testing requirements need to allow for acceptable levels of 
variability in efficacy results. The Agency recognizes that some 
products stored over time may not obtain the same efficacy or toxicity 
testing results for the product's original listing submission yet may 
still meet the applicable threshold(s) that were required to list the 
product on the NCP Product Schedule. However, EPA also recognizes that 
some products stored over time may not meet the applicable threshold 
requirements. EPA believes that products stored beyond the expiration 
date listed on the container's label and that, upon retesting, do not 
meet the applicable threshold(s) that were required to list the product 
on the NCP Product Schedule, no longer represent the product approved 
for listing on the NCP Product Schedule. A variance could allow expired 
products that do not meet the applicable threshold requirements for 
listing on the NCP Product Schedule to be available for authorization 
upon retesting, while other products with similar results would be 
denied listing on the NCP Product Schedule.
(g) Supplemental Testing, Monitoring, and Information
    The Agency is finalizing at Sec.  300.910(g) an amended provision 
that maintains the RRT's authority to require supplementary toxicity 
and efficacy testing, or to request available data or information that 
addresses site-, area-, or ecosystem-specific concerns relative to the 
use of product for both planning and authorization of use. The 
amendment adds flexibility to the former requirement by removing ``When 
developing preauthorization plans . . .'' and by including ``or 
submission of available data and information'' to recognize that 
existing data or information that addresses site-, area-, or ecosystem-
specific concerns relative to the use of a product may be available. 
Additionally, in the final action, EPA modified the proposed language 
to specify that this supplemental testing, monitoring, and information 
may be required ``for both planning and response, including 
authorization of use'' to emphasize the broad potential use of this 
data. As proposed, the Agency is including the term ``ecosystem'' with 
area and site-specific concerns, as RRTs may want to gather additional 
information on the use of certain products when assessing the 
biological communities specific to their area. In the final amendment, 
EPA has modified the proposed regulatory text to streamline it to 
specify that ``The product manufacturer or responsible party shall 
provide, upon request of the RRT or OSC, additional monitoring or 
testing data and information to inform chemical or biological agent use 
decisions specific to a response.''
    Some commenters expressed opposition to the RRT's authority to 
require supplemental testing, monitoring, and information, as provided 
in the proposed rule. Commenters provided several reasons for the 
opposition, including stating that the standard efficacy and toxicity 
tests already required are more than adequate, additional testing would 
cause a delay in the spill response; the current testing requirements 
in the rule and/or NCP are adequate and additional data is unlikely to 
provide valuable information for decision making; additional data may 
create confusion; additional data collection would increase costs for 
facilities; and unnecessary animal testing should be avoided. One 
commenter stated that no information is provided in the rule as to what 
circumstances might trigger an RRT's request for supplemental testing, 
monitoring, or information. The Agency disagrees with the commenters' 
opposition to recognizing that RRTs may require supplemental testing, 
monitoring, and information. In addition to planning, this provision 
aims to provide discharge-specific information that may assist in 
decision

[[Page 38300]]

making during a response. The Agency notes this is a discretionary 
provision for the RRT to require supplemental information, and that the 
RRT may coordinate with the OSC to address any concerns related to 
requiring additional information. Standard toxicity tests required in 
the final rule encompass only a few species and are not necessarily 
intended to be protective of site-, area- or ecosystem-specific 
concerns. Decades of research show that species can vary substantially 
in sensitivity, and that ecosystems contain a diversity of species of 
mostly unknown sensitivity. The Agency believes retaining the option 
for the RRT to require supplemental testing, monitoring, and 
information that addresses incident-specific concerns for planning and 
response relative to product use is reasonable and prudent. For 
example, the provision provides flexibility in gathering scientific 
information relevant to a given site or geographic location and allows 
for better targeting chemical and biological agent use during a 
response. The absence of the final provision for the RRTs to require 
supplemental testing, monitoring, and information may adversely impact 
the RRT's ability to provide informed concurrence and consultation 
determinations. EPA also notes that the provision under Sec.  
300.910(a) for preauthorizing an OSC to authorize the use of a chemical 
or biological agent does not preclude the RRT from requiring additional 
monitoring and information.
    A commenter opposed this provision because they asserted that the 
required tests would not inform operational decision making during the 
response, but rather would develop data for the Natural Resource Damage 
Assessment (NRDA) process. EPA agrees with the comment that 
``operational monitoring and NRDA are two different things''. This 
provision is separate from NRDA monitoring, testing, and data 
collection; NRDA monitoring, testing, and data collection is outside 
the scope of this provision. To clarify this point, EPA has modified 
the provision from the proposed language. The finalized, streamlined 
provision states that the RRT or OSC may request additional monitoring 
or testing data and information to ``inform chemical or biological 
agent use decisions specific to a response.'' EPA notes the purpose of 
the provision is to provide the OSC and RRT, if necessary, supplemental 
data, including monitoring data which may not be already derived from 
required monitoring plans included within ACPs.
    Some commenters opposed the RRT authority to request additional 
monitoring associated with the use of a product during a discharge and 
expressed concern that this provision could be potentially used during 
a discharge situation to prevent or delay the use of chemical or 
biological agents for non-technical reasons and thus potentially reduce 
the effectiveness of the response. The Agency disagrees. This provision 
aims to provide incident-specific information that may assist in 
decision making during a response, not to hinder the overall response 
time. The Agency does not believe these requirements would delay or 
impede response actions such as the deployment of mechanical recovery 
or other response related equipment. EPA disagrees with the commenters' 
concern that giving the RRT authority to request additional monitoring 
associated with the use of a product during a discharge could 
specifically delay the use of a chemical or biological agent and reduce 
the effectiveness of a response. This provision is not intended to 
delay the use of an agent, but rather to inform and reduce the 
uncertainties associated with a chemical or biological agent during the 
response. The Agency notes this is a discretionary provision for the 
RRT to request supplemental information, and that the RRT may 
coordinate with the OSC to address any concerns related to the request.
    A commenter suggested that the regulation should provide that Area 
Committees, in addition to RRTs, are authorized to request that the OSC 
require additional monitoring, and that the OSC may independently 
require this additional monitoring absent a particular request from the 
RRT or Area Committee. The Agency disagrees with the commenter's 
suggestion. The NCP establishes the roles and responsibilities for RRTs 
and Area Committees. The Area Committees are responsible for preparing 
ACPs for their designated areas as described in Sec.  300.210(c). The 
RRT responsibilities under the NCP include the development and 
coordination of preparedness activities before a response action is 
taken, as well as coordination of assistance and advice to the OSC 
during response actions, as described in Sec.  300.115. The Agency 
believes it is appropriate to focus this provision on the RRTs given 
their operational roles, including the role of certain RRT members in 
authorizing the use of chemical or biological agents. Thus, the final 
rule states the product manufacturer or responsible party shall 
provide, upon request of the RRT or OSC, additional monitoring or 
testing data and information to support chemical or biological agent 
use decisions specific to a response.
(h) Recovery of Chemical Agents and Other Substances From the 
Environment
    The Agency is adding a new provision at Sec.  300.910(h) to require 
the responsible party to recover solidifiers, sorbents, and surface 
washing agents from the environment following their use. The provision 
requires that the responsible party shall ensure that removal actions 
adequately contain, collect, store, and dispose of solidifiers, surface 
washing agents, and sorbents, unless otherwise directed by the OSC. EPA 
identifies each of these agents or other substances, in their 
respective finalized definitions in Sec.  300.5, as needing to be 
recovered from the environment to minimize any potential adverse 
impact. The Agency recognizes there may be situations where the safety 
of response personnel is threatened, or where additional harm to the 
environment could occur during recovery operations, so the final 
provision provides that the OSC should, at a minimum, consider factors 
such as the safety of response personnel and harm to the environment in 
making recovery-related determinations. Furthermore, the Agency has 
modified the title of the section as ``Recovery of Chemical Agents and 
Other Substances from the Environment'' to recognize that sorbents are 
covered under Sec.  300.910(h).
    Commenters expressed support for the identification of the agent 
categories and substances intended to be removed from the environment 
following their use as described in the preamble to the proposed rule: 
solidifiers, sorbents, and surface washing agents. However, other 
commenters requested clarification in the regulatory text as to which 
substances or agents are covered, noting that it should apply to 
solidifiers, sorbents, and surface washing agents as well as other oil 
spill mitigating devices, oil-product combinations, and weathered oil. 
A commenter stated that the phrase ``agents that are intended to be 
recovered from the environment'' is ambiguous and suggested that EPA 
change the language to clarify that this provision applies to 
``substances'' including sorbents, rather than solely agents. EPA 
recognizes the request to clarify in the regulatory text as to which 
substances or agents are covered. Based on comments, EPA amended the 
final provisions in Sec.  300.910(h) relative to the proposal to 
address chemical agents and other substances to be recovered from the 
environment to specifically include solidifiers, surface washing 
agents, and sorbents.

[[Page 38301]]

    Some commenters suggested additions to the proposed language to 
further specify requirements. EPA recognizes a commenter's request for 
additional language that would serve to quantify the term 
``adequately,'' a commenter's suggestion that the language should be 
modified to clarify that recovery of substances should be completed 
``to the extent possible,'' and the suggestion that removal action 
agents should always be recovered from the environment. Under Sec.  
300.120, the OSC directs response efforts and coordinates all other 
efforts at the scene of a discharge. EPA believes that it is the OSC 
who will make the determination of when the recovery of agents from the 
environment is adequate for the specific response. These activities are 
to be done in accordance with applicable federal, state, Tribal and 
local requirements. Thus, the Agency maintains in the final rule the 
requirements for the responsible party to ensure that removal actions 
adequately contain, collect, store, and dispose of chemical agents and 
other substances that are to be recovered from the environment, unless 
otherwise directed by the OSC. The Agency does not believe the final 
provision should be modified to include ``to the extent possible'' 
since it already provides for that expectation, subject to the 
direction of the OSC. The OSC should, at a minimum, consider factors 
such as the safety of response personnel and harm to the environment in 
making such determinations. EPA amended the final provision with the 
phrase ``at a minimum'' to recognize that factors other than the 
examples provided may be considered.
    The Agency acknowledges a commenter's suggestion to make it 
explicitly clear in the regulatory text that the OSC has the authority 
to utilize the NEBA framework. The Agency is not taking action on this 
comment. The NCP continues not to require nor preclude the use of any 
specific environmental tradeoff methodology to identify protective 
strategies that may minimize the potential environmental impact of 
hazardous substance releases or oil discharges. In addition, the NCP 
continues not to define NEBA. While EPA recognizes the need to 
establish specific criteria and monitoring for removal actions overall, 
this section specifically focuses on actions when chemical or 
biological agents are used.
    The Agency acknowledges the comment that the ability to use a given 
substance in a response should be dependent on the development of a 
removal/recovery plan, as well as the comment that removal action 
agents should not be considered for use if safety or environmental 
concerns regarding recovery of these agents exist prior to deployment. 
The Agency notes that there are certain chemical agents and other 
substances that are intended to be recovered from the environment; EPA 
amended the final provision to acknowledge that chemical agents and 
other substances to be recovered include solidifiers, surface washing 
agents, and sorbents, and revised the title accordingly. EPA believes 
RRTs and OSCs may consider these factors when determining under what 
conditions to authorize their use, as applicable. EPA also believes 
that the final provision provides stakeholders the opportunity to 
develop removal/recovery plans for these agents and substances. It is 
important to note that removal actions that consider the use of 
chemical or biological agents and other substances must do so in 
accordance with Subpart J.
    Some commenters suggested that recovered materials should be 
treated as a hazardous waste so that they are not disposed of in public 
landfills, as a matter of public health. Under the NCP, oil and 
contaminated materials recovered in cleanup operations are to be 
disposed of in accordance with the Regional Contingency Plan (RCP), 
ACP, and any applicable laws, regulations, or requirements, as stated 
in Sec.  300.310(c). The applicability of hazardous waste regulations 
is outside the scope of this final action.
(i) Reporting of Agent Use
    The Agency is adding a new provision at Sec.  300.910(i)(1), to 
require the OSC to provide to the RRT certain information for the use 
of a chemical or biological agent within 30 days of completion of agent 
use. The information required for any chemical or biological agent used 
in response to an oil discharge includes product name, product 
category, the quantity and concentration used, and the duration of use, 
the locations where the agent was used, any available data collected, 
and any available analyses of efficacy and environmental effects. This 
information may be submitted in accordance with the OSC reporting 
provisions under Sec.  300.165 of this part, as applicable, subject to 
the 30-day timing requirement. While other existing notification 
requirements serve to activate an immediate response to an event, this 
requirement gathers information that will be useful in specifically 
evaluating the use of chemical or biological agents in the response, 
informing the review of preauthorization plans, and providing a basis 
for any necessary changes to improve environmental protection. 
Additionally, Sec.  300.910(i)(2) requires that the authorizing OSC 
provide for notification to the public, to be updated during a response 
as appropriate, the following information on chemical and biological 
agents used in response to an oil discharge: product name, product 
category, quantity and concentrations used, duration of use, and 
location(s) of use.
    Several commenters recommended that timely public notification of 
product use be required and that reports should be accessible to the 
public. A commenter recommended initial notification of product use 
within 24 hours and daily public notification thereafter, stating that 
accessibility is a matter of health and government accountability. This 
commenter also requested simultaneous notification of Tribal 
governments, Area Committees, and Citizens' Advisory Councils. A 
commenter recommended adding language requiring the responsible party 
to inform nearby landowners of dispersant use impacts that may affect 
natural or cultural resources. The Agency generally agrees with 
commenters' recommendations of providing timely public reporting of 
product use and is finalizing a new provision that will require the OSC 
to provide notification to the public. Under Sec. Sec.  300.135(n) and 
300.155(a), both of which are provisions outside the scope of this 
action, the NCP already provides that the OSC should ensure all 
appropriate public and private interests are kept informed and that 
their concerns are considered throughout a response, to the extent 
practicable. Based upon comments received requesting public 
notification of chemical and biological agent use, the Agency is 
including a new notification provision at Sec.  300.910(i)(2) that 
requires the OSC to provide for public notification, updated during a 
response as appropriate, regarding information on chemical and 
biological agents used in response to an oil discharge to include the 
following: product name, quantity and concentrations used, duration of 
use, and location(s) of use. The new provision requires the OSC to 
provide notification to the public in support of Sec. Sec.  300.135(n) 
and 300.155(a) and (b). While EPA agrees that the OSC should provide 
timely public notification, the Agency disagrees that the initial 
notification should be required to be within 24 hours of product use. 
EPA believes the OSC should have the flexibility to establish the 
initial timeframe to avoid potential delays in addressing roles and 
responsibilities under the NCP, such as obtaining the

[[Page 38302]]

necessary concurrences and consultations from certain RRT member 
agencies on chemical and biological agent use. EPA believes that the 
OSC, as the entity with overall responsibility to direct the response, 
is the appropriate party to provide the public notification. Public 
notification may occur, for example, through coordination with the RRT 
and posting on their website, as appropriate. EPA also believes that 
the public notification provision in the final rule also addresses 
commenter's request that reporting include notification of Tribal 
governments, Area Committees, Citizens' Advisory Councils, and 
landowners.
    Some commenters suggested changes to the proposed reporting 
requirements. A commenter recommended that the regulatory text clarify 
that reporting is required in the case of sorbent use. Commenters 
suggested that reports should include an overview of the incident, 
description of how the agent applications were conducted, description 
of all monitoring conducted and the results, a description of any 
adverse environmental effects, water depth and proximity to shoreline, 
and the amount of product and oil-product recovered. This commenter 
suggested that the rule may need to include reference to consultations 
under section 7 of the Endangered Species Act (ESA), depending on the 
nature of environmental impacts from a given spill, and that the 
reporting requirements should be mandatory, not just if requested by 
the RRT or the natural resource trustee. EPA disagrees with expanding 
the scope of the Reporting of Agent Use provision to include other 
spill mitigating devices and substances including sorbents and other 
aspects of the removal operation. The purpose of the requirement is to 
gather information that will be useful in evaluating the use of 
chemical or biological agents in the response. Sorbents are not 
included in the definition of chemical or biological agents under 
Subpart J and are not subject to the authorization of use provisions 
under Sec.  300.910(a) or (b); therefore, the Agency disagrees that 
reporting should be required in the case of sorbent use. The 
information reported through this reporting provision is also intended 
to inform the review of preauthorization plans and provide a basis for 
any necessary changes to improve environmental protection. The RRT has 
existing authority to require the OSC to submit a complete report under 
Sec.  300.165 to obtain information that more broadly covers the 
removal operation and the actions taken, which may include the 
information suggested by the commenters (e.g., overview of the 
incident). While the Agency recognizes that consultations under ESA 
section 7 may be warranted, it is important to clarify that a purpose 
of this reporting requirement is for the RRT and EPA to gather 
information specific to the use of a product in a response.
3. Data and Information Requirements for Listing on the NCP Product 
Schedule or Sorbent Product List
    The Agency is revising the data and information requirements in 
Sec.  300.915 of Subpart J for listing products on the NCP Product 
Schedule or Sorbent Product List, identifying the relevant science to 
establish a national screening process for products to be listed. The 
amendments revise the efficacy and toxicity testing protocols and 
listing criteria for all chemical and biological agents on the NCP 
Product Schedule, and requirements for listing on the Sorbent Product 
List. Additionally, the Agency is revising the requirements for general 
product information, Proprietary Business Information (PBI) claims, 
submission package contents, EPA review and listing procedures, 
requests for decision review, changes to products, transitioning 
products from the current NCP Product Schedule to the new NCP Product 
Schedule and for listing on the new Sorbent Product List, mandatory 
product disclaimer, and removal of products from the NCP Product 
Schedule or Sorbent Product List. The final action specifically 
includes references to the new Sorbent Product List as clarifying 
edits.
    The Agency recognizes comments that asserted that burning agents 
should be added to the NCP Product Schedule and that the Agency should 
require toxicity testing of burning agents, of combustion products 
(e.g., smoke plumes), and of the burn residue that results from 
application of burning agents to oil slicks. The Agency continues to 
believe that because of the nature of burning agents and the revisions 
to the authorization of use for burning agents in the final rule, it is 
not necessary to require product submissions for burning agents. See 
section V.C.2.c of this preamble for more information on burning 
agents.
(a) General Product Information
    EPA is consolidating in paragraph (a) of Sec.  300.915 the general 
submission requirements applicable to all types of agents that may be 
listed on the NCP Product Schedule or Sorbent Product List. The 
revisions group together and simplify the general submission 
requirements applicable to all product types. EPA believes that 
reorganizing the general requirements in a central location will 
clarify which requirements are applicable to all submissions, and which 
are specific to each product type by including them in separate 
sections. The general information requirements for products are as 
follows:
    Submitter. Under Sec.  300.915(a)(1), EPA is requiring the name, 
physical address, email, and telephone number of the submitter. Under 
Sec.  300.915(a)(2), EPA is requiring the identity of the submitter 
(i.e., manufacturer, vendor, importer, distributor, designated agent 
for the manufacturer), and documentation of such identity. This 
requirement is intended to clearly establish the point of contact 
responsible for the submission, and to avoid any conflicts or claims 
from unauthorized entities on products listed or submitted for 
consideration. No comments on these provisions were identified. EPA 
reorganized the provision under Sec.  300.915(a)(2) to provide greater 
clarity by moving the documentation requirement forward and by making 
editorial changes.
    General product information. Under Sec.  300.915(a)(3), EPA is 
requiring the submitter to provide all name(s), brand(s), and/or 
trademark(s) under which the product is to be sold. No comments on 
Sec.  300.915(a)(3) were identified.
    Supplier. Under Sec.  300.915(a)(4), EPA is requiring the names, 
physical addresses, emails, and telephone numbers of the primary 
distributors, vendors, importers, and/or designated agent acting on 
behalf of the manufacturer. No comments on Sec.  300.915(a)(4) were 
identified. EPA made editorial changes from the proposed text to 
provide greater clarity.
    Safety Data Sheet. The provision at Sec.  300.915(a)(5) requires 
the submitter to provide a Safety Data Sheet (SDS). EPA recognizes that 
chemical and biological agents may contain substances that could 
potentially cause harm to oil spill responders who, if unaware of the 
product's composition, may not wear the proper personal protective 
equipment. SDSs describe the hazards that may be involved with the 
product and recommend safety measures that would minimize or avoid 
adverse consequences that may result from exposures. The Agency 
believes SDS information will be useful to both OSCs and responders 
when authorizing and using the product respectively. Several commenters 
suggested that the Agency should require that SDS information be 
submitted for each individual product component. Agency disagrees that 
that SDS information needs to be submitted for each individual product 
component.

[[Page 38303]]

EPA believes that the SDS for the product, rather than for each 
component, is more appropriate for responders to use during a response. 
EPA believes that requiring an SDS for each product component would add 
unnecessary burden to the submitter. The information that is required 
to be included in an SDS is the responsibility of the Occupational 
Safety and Health Administration (OSHA) and is outside the scope of 
this rulemaking. The Hazard Communication Standard (HCS) (29 CFR 
1910.1200(g)) requires that the chemical manufacturer, distributor, or 
importer provide Safety Data Sheets (SDSs) for each hazardous chemical 
to downstream users to communicate information on these hazards. The 
SDS includes information such as the properties of each chemical; the 
physical, health, and environmental health hazards; protective 
measures; and safety precautions for handling, storing, and 
transporting the chemical. In addition, OSHA requires that SDS 
preparers provide specific minimum information as detailed in Appendix 
D of 29 CFR 1910.1200. The Agency believes the SDS along with the NCP 
Subpart J Technical Notebook \4\ provides useful information to OSCs, 
RRTs, and responders when authorizing and using the product 
respectively. EPA notes the final revisions to Sec.  300.950, 
Submission of Proprietary Business Information (PBI), provide greater 
awareness of product components to OSCs, other stakeholders, and the 
public.
---------------------------------------------------------------------------

    \4\ The NCP Subpart J Technical Notebook presents manufacturer's 
summary information on the conditions under which each of the 
products is recommended to be used.
---------------------------------------------------------------------------

    Product Storage and Shelf Life. Under Sec.  300.915(a)(6), EPA is 
requiring the submitter to provide the maximum, minimum, and optimum 
temperature, humidity, and other relevant conditions for product 
storage and a brief description of the consequences to performance if 
the product is not stored within these limits. Under Sec.  
300.915(a)(7), EPA is requiring the anticipated shelf life of the 
product at the storage conditions noted in paragraph (a)(6) and 
documentation for this determination.
    A commenter suggested requiring the submitter to identify the 
method of product storage (e.g., 55-gallon drum, 200-gallon plastic 
tote, etc.) and provide information on the storage container materials. 
The Agency does not believe it necessary to amend the regulatory text 
for this purpose. EPA notes that Sec.  300.915(a)(7) requires 
documentation to support a manufacturer's determination of the 
anticipated shelf life of the product at the storage conditions. EPA 
believes this provision satisfies the commenter's concern regarding 
information on the storage container materials and methods that are 
likely to affect the product shelf life.
    Product Labels. The provision at Sec.  300.915(a)(8) requires 
sample product labels for all name(s), brand(s), and/or trademark(s) 
under which the product is to be sold that includes manufacture and 
expiration dates, and conditions for storage, and notes that the 
submitter may use an existing label provided it already contains the 
required dates and storage information. This requirement is not 
intended in any way to supersede any other federal labeling requirement 
in place (e.g., OSHA's HAZCOM). The requirement is intended to assist 
the OSC in ensuring that the product used to respond to an incident is 
still viable and effective, and the oil spill removal organizations or 
any other responder that is storing the product to ensure that their 
stockpile is viable and available to be authorized for use. No comments 
on Sec.  300.915(a)(8) were identified.
    Chemical or Biological Agent Category. The provision at Sec.  
300.915(a)(9) requires the chemical or biological agent category under 
which the product is to be considered for listing on the NCP Product 
Schedule, including detailed information on the specific process(es) 
through which the product affects the oil, and the specific 
environment(s) on which it is intended to be used (e.g., waters and/or 
adjoining shorelines). If the product meets the definition of more than 
one chemical or biological agent category, submitters must identify all 
applicable categories and provide the test data to meet the listing 
criteria appropriate to each category. A commenter suggested revising 
Sec.  300.915(a)(9) to allow the manufacturer to indicate the primary 
and other non-primary functions to help the response team determine 
whether a product is best suited for a given response situation. 
Another commenter suggested that bioremediation agent formulas should 
be restricted to only those components necessary for the proposed 
primary use of any listed product, noting, for example, that 
bioremediation agents formulated for land-based settings may not need 
components such as surfactants to be effective, whereas the product may 
not need other components such as sugars and nutrients to be effective 
for use in or near water. EPA does not believe such a revision is 
necessary in Sec.  300.915(a)(9) because the final rule includes a 
requirement under Sec.  300.915(a)(13) for the product submitter to 
provide information on the intended function of each component. The 
Agency believes these provisions will help OSCs determine whether a 
product is appropriate for any given response situation. EPA notes that 
some components other than those components necessary for the primary 
use may still serve to support the product's function. However, EPA 
also recognizes concerns that a product (e.g., bioremediation agents) 
may contain components that may support an alternate mechanism of 
action (e.g., surfactants) and could potentially meet the definition of 
another product category (e.g., dispersants). Based on comments, EPA 
amended the final provision under Sec.  300.915(a)(9) to remove the 
phrase ``. . . and you want it considered for listing on the NCP 
Product Schedule in more than one category . . .'' to ensure that 
product manufacturers identify all applicable chemical or biological 
agent categories. If a product meets the definition of more than one 
chemical or biological agent category, the product manufacturers must 
provide the test data appropriate to each category. The final provision 
ensures that the Agency will receive the information necessary to 
evaluate the product for listing on the NCP Product Schedule in all 
categories in which the product may be listed, regardless of whether 
the submitter requests it to be listed in a specific product category.
    In these finalized provisions, EPA also made some editorial changes 
to the proposed text for increased clarity and consistency.
    Recommended Product Use Procedures. Under Sec.  300.915(a)(10), EPA 
is requiring the submission of recommended product use procedures, 
including product concentrations, use ratios, types of application 
equipment, conditions for use, any application restrictions; and, as 
applicable, for product and oil containment, collection, recovery, and 
disposal procedures. These procedures must address, as appropriate, 
variables such as weather, water salinity, water temperature, types and 
weathering states of oils or other pollutants. The procedures must 
include supporting documentation and current applicable standard 
methods used to determine them. EPA believes that providing detailed 
information on the recommended product use procedures is necessary to 
inform the OSC when authorizing these products. This supporting 
documentation and specific information on the methods and standards 
used to establish them will inform OSCs and other response personnel in 
selecting products that can be effectively used under the operating

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conditions encountered for any given incident.
    The Agency recognizes the commenter that recommended that EPA 
require turbidity measurement in Sec.  300.915(a)(10); however, EPA did 
not make this change because the regulatory text in Sec.  
300.915(a)(10) for variables (e.g., weather, water salinity, water 
temperature, types and weathering states of oils or other pollutants, 
and product and oil containment, collection) that the product use 
procedures must address is not an exhaustive set of variables. In 
addition, the provisions under Sec.  300.915(a) apply to all product 
categories, unless otherwise specified, such as bioremediation agents 
that are typically used on shorelines. The provisions under Sec.  
300.915(a)(10) provide flexibility for product manufacturers to submit 
information relevant to their product and this final action does not 
preclude the submitter from measuring turbidity of its product or 
including turbidity measurements in its submission for listing on the 
NCP Product Schedule, where appropriate. Furthermore, the monitoring 
requirements for dispersant use in response to major oil discharges 
include a requirement at Sec.  300.913 to measure ambient background, 
baseline, and dispersed oil plume water column samples for turbidity.
    EPA also acknowledges the commenter who suggested that EPA require 
the following in a submission: training and personal protective 
equipment (PPE) needs of the workers applying the product, health 
monitoring for the workers, whether the product requires special waste 
disposal, and whether the product is safe to use in sensitive areas 
such as near communities or water supplies. EPA believes that various 
NCP provisions already address this request. This final action includes 
the requirement at Sec.  300.915(a)(5) to provide a SDS for the 
product, which includes PPE information. Furthermore, EPA notes that 
the NCP addresses worker health and safety under Sec.  300.150, 
including compliance with applicable OSHA regulations and addresses 
availability of adequately trained operators under Sec.  300.910(a) and 
(b), respectively. Additionally, Sec.  300.915(a)(10) requires 
recommended product use procedures, including product concentrations, 
use ratios, types of application equipment, conditions for use, and any 
application restrictions; and, as applicable, for product and oil 
containment, collection, recovery, and disposal procedures. The NCP 
addresses the disposal of oil and contaminated materials recovered in 
cleanup operations in accordance with the RCP, ACP, and any applicable 
laws, regulations, or requirements under Sec.  300.310(c). Waste 
disposal is outside the scope of this final action.
    In the final action, EPA reorganized the provision under Sec.  
300.915(a)(10) including moving forward the phrase regarding procedures 
for product and oil containment, collection, recovery, and disposal 
procedures to provide greater clarity and adding the term ``as 
applicable,'' to recognize that not all products may be collected and 
recovered. EPA also made other editorial changes for greater clarity.
    Environmental Fate. Under Sec.  300.915(a)(11), EPA is requiring 
environmental fate information, including any known measured data, 
methodologies, and supporting documentation, on the persistence, 
bioconcentration factor, bioaccumulation factor, and biodegradability 
of the product and all of its components in the environment. EPA 
believes environmental fate information is necessary to inform the OSCs 
when authorizing these products for use, given the potential for their 
extended use in significant quantities. However, given that these 
factors can be estimated, the final action is only requiring that 
available information or data be submitted on the product rather than 
specific product testing, as specific product testing for these factors 
can add significantly to the testing cost for each product.
    Regarding the Agency's request for comment on whether testing for 
products' bioconcentration, bioaccumulation, and biodegradation should 
be required for listing purposes, some commenters stated that testing 
should be required, and one expressed concern that reliance on existing 
data, rather than specifying a core required data package, may result 
in variable and incomplete understanding of these key factors which in 
turn influence chemical fate and biological effects of the product. EPA 
notes that the final provision provides flexibility to submit the 
required information with supporting documentation and also does not 
preclude submitting results from product-specific testing of these 
parameters. The submitter may use estimation techniques/models, such as 
the EPA model EPI Suite\TM\, to estimate environmental fate properties. 
Based on comments, EPA amended Sec.  300.915(a)(11) for product 
submissions to include the test methodologies used to obtain the 
environmental fate information, providing additional context on the 
data. EPA notes that the Agency reserves the right to request 
clarification or additional information, as necessary (see Sec.  
300.955(c)(1)).
    Regarding the Agency's request for comment on whether thresholds 
for bioconcentration factors and bioaccumulation factors should be 
established for listing a product on the NCP Product Schedule, some 
commenters recommended that EPA should set thresholds for a product's 
persistence, bioaccumulation, and biodegradability for listing a 
product on the NCP Product Schedule, and to assist the OSC in 
authorizing use and establishing safe application rates. Another 
commenter suggested having minimum ``pass or fail requirements'' with 
added optional information fields for NCP listing. EPA recognizes that 
environmental fate information informs OSCs when authorizing these 
products for use, given the potential for their extended use in 
significant quantities. The new provisions will assist EPA in 
evaluating a product's persistence, bioaccumulation, and 
biodegradability. However, for oil spill response products, the Agency 
does not have sufficient information to establish thresholds for all 
environmental conditions that may be potentially encountered. The 
Agency did not propose, nor did it identify any relevant information to 
establish, thresholds beyond those already included in the final 
action. While EPA is not establishing thresholds for environmental fate 
information of chemical and biological agents, the final provisions 
require the submission of available environmental fate information to 
the Agency for listing a product on the NCP Product Schedule. The 
Agency intends to make the submitted information available to the 
public and other interested stakeholders (e.g., natural resource 
trustees).
    The Agency amended the final provision to replace the phrase 
``Environmental fate information . . .'' with ``Available information 
on environmental fate . . .'' to address the comment that environmental 
fate data should be reported only if it is already available and 
included the phrase ``current applicable'' to avoid the submission of 
data based on test methodologies that have been superseded by later 
updates. EPA also reorganized the paragraph to clarify the 
requirements.
    Physical and Chemical Properties. Under Sec.  300.915(a)(12), EPA 
is requiring that the submitter provide the physical and chemical 
properties of the product, as appropriate, and a citation for the 
current applicable standard methods used to determine them, including: 
(i) Physical state and appearance; (ii) vapor

[[Page 38305]]

pressure; (iii) flash point; (iv) pour point; (v) viscosity; (vi) 
specific gravity; (vii) particle size for solid components; and (viii) 
pH. Three of these elements are new physical or chemical property 
requirements under this final rule: physical state and appearance; 
vapor pressure; and particle size for solid components. The Agency 
believes these basic data requirements will provide added context when 
evaluating the products for listing determinations. These, in 
combination with the other general product information requirements, 
will assist the Agency in evaluating the expected product behavior, and 
the process through which it would affect the oil when used in the 
intended water and/or shoreline environment.
    Additionally, the Agency has removed the incorporation by reference 
of specific standards to determine physical and chemical properties and 
replaced this with a requirement for a citation of the current 
applicable standard methodology used to determine these values. EPA 
believes that citing the current applicable standard methodology used 
to determine the required values is sufficient in lieu of specifying 
commonly recognized standard methodologies. Furthermore, EPA did not 
incorporate by reference specific test methodologies in the regulation 
to avoid the administrative burden of updating the NCP every time a 
test methodology is updated to a newer version. The Agency believes it 
is appropriate to make this change given the added requirement for 
accredited laboratories to conduct the testing (Sec.  300.915(a)(17)). 
EPA amended this provision relative to the proposed text to qualify 
``standard methods'' by adding the term ``current applicable'' to 
address comments regarding additional specificity about the standard 
methods used to derive physical and chemical properties. EPA included 
the qualifier ``current applicable'' to provide for updates to test 
methodologies and avoid the submission of data based on test 
methodologies that have been superseded by later updates. EPA also made 
other editorial changes to the paragraph relative to the proposed text 
for greater clarity.
    Under Sec.  300.915(a)(13), EPA is requiring that the submitter 
provide the identity and concentration of all components in the 
product, including each specific component name; corresponding Chemical 
Abstract Service (CAS) Registry Number; the maximum, minimum, and 
average weight percent of each component in the product; and the 
intended function of each component (e.g., solvent, surfactant).
    A commenter suggested that product vendors should not be required 
to report the concentration of product components to the Agency, noting 
that this reporting requirement may threaten a proprietary advantage. 
EPA notes that the requirement to submit the identity and concentration 
of all components in the product is consistent with the previous rule. 
EPA believes that when chemical and biological agents are used on oil 
discharges, it is important for OSCs, RRTs, and the public to have 
information regarding the chemicals being added to the environment. EPA 
also believes that the concentration of the product components provides 
EPA with an understanding of how the product is intended to function 
that cannot be provided by the submission of the identity of the 
product components only. In addition, information on the concentration 
of product components assists EPA in evaluating on the listing of 
product on the NCP Product Schedule and under which category. The final 
rule specifies what information submitters are allowed to claim as PBI 
to balance public access to information with proprietary business 
needs. When a company submits a product for listing on the NCP Product 
Schedule, then it will be allowed to claim certain information 
identified in Sec.  300.915(a)(13) or (14) as PBI.
    Microorganisms, enzymes, and/or nutrients. For products that 
contain microorganisms, enzymes, and/or nutrients under Sec.  
300.915(a)(14), EPA is requiring that the submitter provide the 
following along with a citation or a description of the methodology 
used to determine: (i) The name of all microorganisms by current genus 
and species, including any reclassifications, and any physical, 
chemical, or biological manipulation of the genetic composition and the 
weight percent of each genus in the product; (ii) the name of all 
enzymes and their International Union of Biochemistry (I.U.B.) 
number(s); Enzyme Classification (EC) code numbers; the source of each 
enzyme; units; and specific oil-degrading activity; (iii) the name(s), 
maximum, minimum, and average weight percent of the nutrients contained 
in the product; and (iv) data, methodology, and supporting 
documentation for the levels of bacterial, fungal, or viral pathogens 
or opportunistic pathogens including, but not limited to: enteric 
bacteria such as Salmonella, fecal coliforms, Shigella, coagulase 
positive Staphylococci, and beta hemolytic Streptococci and 
enterococci. As noted above, the final rule specifies what information 
submitters are allowed to claim as PBI to balance public access to 
information with proprietary business needs. When a company submits a 
product for listing on the NCP Product Schedule, then it will be 
allowed to claim certain information identified in Sec.  300.915(a)(13) 
or (14) as PBI.
    To support product screening, this final rule includes a provision 
under Sec.  300.915(a)(14)(iv) to address whether products that contain 
microorganisms, enzymes, and/or nutrients also contain bacterial, 
fungal, or viral pathogens or opportunistic pathogens to compare to 
existing applicable criteria. The Agency reconsidered, based on 
comments, whether it should establish listing thresholds for products 
based on National Ambient Water Quality Criteria, and whether the 
levels selected for certification are appropriate for this purpose. 
Comments received noted that states may develop standards that may be 
more stringent than national criteria. EPA recommends that states and 
authorized tribes consider the Agency's national recommended water 
quality criteria when developing their criteria. However, states and 
authorized tribes may adopt, where appropriate, other scientifically 
defensible criteria that differ from the EPA's recommendations. In 
addition, both national recommended water quality criteria and state 
water quality standards may be revised from time to time. The final 
provision under Sec.  300.915(a)(14)(iv) requires that products 
submitters provide data, methodology, and supporting documentation for 
these pathogen levels to provide relevant information, but the 
provision does not require a certification that they do not exceed 
recommended National Ambient Water Quality Criteria, as applicable. The 
final provisions for listing products on the NCP Product Schedule or 
Sorbent Product List under Sec.  300.955 allow the Agency to make 
listing determinations based on a technical evaluation of all data and 
information submitted in accordance with the requirements for each 
product category and the relevant information on impacts or potential 
impacts of the product. The Agency believes that this information is 
necessary to determine if a product is suitable for listing, 
particularly for bioremediation agents, which could potentially be used 
at recreational beaches. EPA amended the final provision to better 
reflect this approach. EPA may include information related to national 
recommended ambient water quality criteria, applicable state water 
quality standards, and other relevant

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[…truncated; see source link]
Indexed from Federal Register on June 12, 2023.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.