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Rule2026-11648

Oil and Gas and Sulfur Operations in the Outer Continental Shelf-Documents Incorporated by Reference

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Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
June 10, 2026
Effective
August 10, 2026

Issuing agencies

Interior DepartmentSafety and Environmental Enforcement Bureau

Abstract

The Department of the Interior (DOI or Department), through the Bureau of Safety and Environmental Enforcement (BSEE), is incorporating by reference a collection of production measurement industry standards and safety industry standards into its regulations governing oil, gas, and sulfur operations on the Outer Continental Shelf (OCS). Incorporation of these documents by reference will provide industry with up-to-date standards for measuring oil and gas production volumes and enhancing safety. Compliance with these standards will reduce uncertainty in the measurement of oil and gas production and update the minimum standards in the safety regulations.

Full Text

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<title>Federal Register, Volume 91 Issue 111 (Wednesday, June 10, 2026)</title>
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[Federal Register Volume 91, Number 111 (Wednesday, June 10, 2026)]
[Rules and Regulations]
[Pages 35304-35362]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-11648]



[[Page 35303]]

Vol. 91

Wednesday,

No. 111

June 10, 2026

Part II





Department of the Interior





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Bureau of Safety and Environmental Enforcement





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30 CFR Part 250





Oil and Gas and Sulfur Operations in the Outer Continental Shelf--
Documents Incorporated by Reference; Final Rule

Federal Register / Vol. 91, No. 111 / Wednesday, June 10, 2026 / 
Rules and Regulations

[[Page 35304]]


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DEPARTMENT OF THE INTERIOR

Bureau of Safety and Environmental Enforcement

30 CFR Part 250

[Docket ID: BSEE-2022-0005 EEEE500000--256E1700D2--ET1SF0000.EAQ000]
RIN 1014--AA51


Oil and Gas and Sulfur Operations in the Outer Continental 
Shelf--Documents Incorporated by Reference

AGENCY: Bureau of Safety and Environmental Enforcement, Interior.

ACTION: Final rule.

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SUMMARY: The Department of the Interior (DOI or Department), through 
the Bureau of Safety and Environmental Enforcement (BSEE), is 
incorporating by reference a collection of production measurement 
industry standards and safety industry standards into its regulations 
governing oil, gas, and sulfur operations on the Outer Continental 
Shelf (OCS). Incorporation of these documents by reference will provide 
industry with up-to-date standards for measuring oil and gas production 
volumes and enhancing safety. Compliance with these standards will 
reduce uncertainty in the measurement of oil and gas production and 
update the minimum standards in the safety regulations.

DATES: This final rule is effective on August 10, 2026. The 
incorporation by reference of certain material listed in this rule is 
approved for use by the Director of the Federal Register beginning 
``August 10, 2026.'' The incorporation by reference of certain other 
material listed in this rule was approved for use by the Director of 
the Federal Register as of July 15, 2019, February 26, 2021, and 
October 29, 2024.

FOR FURTHER INFORMATION CONTACT: For technical or procedural questions 
contact Alton Payne at 713-220-9204, or David Izon at 703-787 1706, or 
by email: <a href="/cdn-cgi/l/email-protection#542720353a303526302714362731317a333b22"><span class="__cf_email__" data-cfemail="47343326292326352334072534222269202831">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION:

Executive Summary

    This final rule incorporates a total of 23 standards that have not 
previously been incorporated by reference into the regulations and 
updates the incorporation of 40 standards already referenced in the 
regulations. The updates to these 40 existing standards entail either 
incorporating newer editions of, addenda to, amendments to, or 
reaffirmations of the standards. The new standards and the updates to 
existing standards were developed by the American Petroleum Institute 
(API), the American Gas Association (AGA), GPA Midstream Association 
(GPA), and American Society of Mechanical Engineers (ASME), and address 
oil and gas measurement technologies and safety design factors related 
to oil and gas operations on the OCS. The documents that address oil 
and gas measurement technologies reflect the latest measurement 
standards, and their incorporation will provide industry with up-to-
date requirements for measurement technology. The safety-related 
documents comprise four integrity management standards, two offshore 
structure standards, two bolting/metallurgy standards, and one well 
workover standard. The incorporation by reference (IBR) of these 
standards will help ensure that BSEE's regulations reflect improvements 
in operational safety and recognize advancements in science and 
technology, including those advancements related to measurement 
accuracy.

Table of Contents

I. Background
    A. BSEE Statutory and Regulatory Authority and Responsibilities
    B. Purpose and Summary of the Rule
    C. Summary of Documents Incorporated by Reference
II. Discussion of Public Comments on the Proposed Rule
III. Section-by-Section Summary and Responses to Comments on the 
Proposed Rule
IV. Derivation Table
V. Procedural Matters

I. Background

A. BSEE Statutory and Regulatory Authority and Responsibilities

    BSEE derives its authority primarily from the Outer Continental 
Shelf Lands Act (OCSLA), 43 U.S.C. 1331-1356a. OCSLA authorizes the 
Secretary of the Interior (Secretary) to lease the OCS for mineral 
development and to regulate oil and gas exploration, development, and 
production operations on the OCS. OCSLA also authorizes the Secretary 
to regulate OCS energy-related activities involving sources other than 
oil and gas. The Secretary has delegated authority to perform certain 
of these functions to BSEE. To carry out its responsibilities, BSEE 
regulates oil and gas exploration, development, and production 
operations on the OCS. Among other purposes, regulations administered 
by BSEE seek to prevent injury, loss of life, and damage to property, 
natural resources, and the environment. The Department of the Interior 
(Department) incorporates by reference in its regulations many oil and 
gas industry standards to require compliance with those standards in 
offshore operations. Detailed information concerning BSEE's regulations 
and guidance to the offshore oil and gas industry may be found on 
BSEE's website at <a href="https://www.bsee.gov/guidance-and-regulations">https://www.bsee.gov/guidance-and-regulations</a>.

B. Purpose and Summary of the Rule

    BSEE uses standards (STD), specifications (Spec), recommended 
practices (RP), manuals of petroleum measurement standards (MPMS),\1\ 
and other documents developed by standard development organizations 
(SDOs) as a means of establishing requirements for activities on the 
OCS. This practice, known as ``incorporation by reference,'' allows the 
Department to incorporate the standards from technical documents into 
the regulations so that the regulations reflect well accepted industry 
standards without increasing the volume of the Code of Federal 
Regulations (CFR). The Department currently incorporates by reference 
125 industry standards into its offshore operating regulations, which 
are administered by BSEE.
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    \1\ The STD, Spec, RP, and MPMS acronyms are used only when 
referencing a particular technical document in this rule's preamble. 
Acronyms are not used when calling out the title of a technical 
document in the regulatory text section at the conclusion of this 
rule or in the list of technical documents in Section C below, which 
summarizes the documents this rule is incorporating by reference.
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    The National Technology Transfer and Advancement Act (NTTAA) 
requires BSEE to ``use technical standards that are developed or 
adopted by voluntary consensus standards bodies . . . to carry out 
policy objectives or activities[,]'' including those on the OCS. 
According to the relevant definitional guidance from the Office of 
Management and Budget (OMB), standards include those developed by SDOs 
that are currently incorporated into regulations administered by BSEE 
(e.g., industry standards, codes, specifications, and RPs).
    Where appropriate, the Department incorporates industry standards 
into its regulations by reference without republishing the standards in 
their entirety. The legal effect of incorporation by reference is that 
the incorporated standards become regulatory requirements. This 
incorporated material, like any other duly promulgated regulation, has 
the force and effect of law. Operators, lessees, and other regulated 
parties must comply with the documents that are incorporated by 
reference in the regulations.

[[Page 35305]]

    Incorporation by reference of a document or publication is limited 
to the version of the document or publication cited in the regulations. 
This means that newer editions, versions, amendments, or revisions to 
documents that are already incorporated by reference in the regulations 
are not part of the regulations until the Department promulgates a rule 
in the Federal Register that incorporates the new, updated, or revised 
version of the document.
    Industry standards incorporated into the Department's regulations 
are invaluable because they avoid the need to promulgate more detailed 
regulations. Incorporating industry standards into the Department's 
regulations also allows the Bureau's administration of those 
regulations to evolve from a regulatory process that reacts to 
inadequacies in OCS operations to one that instead follows a more 
orderly process that recognizes technical innovation and progressive 
industry ideas aimed at improving performance, safety, and 
efficiencies.
    BSEE continually participates in reviews, revisions, and updates of 
standards with SDOs and determines whether new editions should be 
incorporated into the Department's regulations. Incorporation of new 
editions may be necessary because of changes in technology, 
environmental concerns, individual incidents, or incident trends. Also, 
BSEE may request an SDO to develop a new standard based on incident 
analysis or due to the introduction of new technologies, such as deep-
water operations and floating production systems.
    BSEE reviewed the requirements in the standards listed in the next 
section to ensure that industry uses the best available and most 
accurate measurement technologies. BSEE's review indicates that the 
decision to use these standards will not impose additional costs on the 
offshore oil and gas industry, because industry currently uses these 
standards.

C. Summary of Documents Incorporated by Reference

    The Office of the Federal Register's (OFR) regulations, at 1 CFR 
part 51, govern how BSEE and other Federal agencies incorporate 
documents by reference. Agencies may incorporate a document by 
reference by publishing in the Federal Register the document title, 
edition, date, author, publisher, identification number, and other 
specified information. The preamble of the rule must contain a summary 
of each document incorporated by reference, as well as discuss the ways 
that the incorporated materials are reasonably available to interested 
parties and how interested parties can obtain those materials. This 
preamble also contains a summary of certain documents that have already 
been incorporated by reference into the regulations but are affected by 
this rulemaking. More specifically, this rulemaking will add express 
references to these documents at certain regulations in 30 CFR part 250 
to clarify their longstanding use and existing incorporation into the 
regulations. The text immediately below summarizes the documents that 
will be or have already been incorporated by reference in 30 CFR 
250.198 and the changes to the regulatory text. Descriptions of the 
standards described in this section are adopted or paraphrased from the 
SDO publications. This section of the preamble concludes with a 
discussion regarding the availability of the documents that are 
incorporated by reference.
1. American Gas Association (AGA) Report No. 8, Part 1--Thermodynamic 
Properties of Natural Gas and Related Gases Detail and Gross Equations 
of State, Third Edition, April 2017
    AGA Report No. 8, Part 1 presents information for the computation 
of thermodynamic properties (e.g., compressibility factor, density, and 
speed of sound) of natural gas and related gases with the DETAIL and 
GROSS equations of state. Uncertainty estimations for different 
compositions, pressures, and temperatures are given in Part 1. The 
computations described in Part 1 are valid for single-phase gaseous 
states only. BSEE is incorporating by reference this standard for the 
first time into its regulations at Sec.  250.198(b)(2) and adding a 
reference to this standard in Sec.  250.1203(b)(2)(ii).
2. AGA Report No. 8, Part 2--Thermodynamic Properties of Natural Gas 
and Related Gases, GERG--2008 Equation of State, First Edition, April 
2017
    AGA Report No. 8, Part 2 presents information for computation of 
thermodynamic properties, including compressibility factors, densities, 
and speeds of sound, of natural gas and related gases, for gaseous 
states, vapor-liquid equilibrium states, and liquid states, based on 
the GERG-2008 equation of state. It also improves upon the performance 
of the AGA 8 DETAIL equation for gas-phase properties, especially at 
high pressures and low temperatures. The ranges of temperature, 
pressure, and composition for which the GERG-2008 equation of state 
applies are much wider than the AGA 8 DETAIL equation. Uncertainty 
estimations for different compositions, pressures, and temperatures are 
given. With the availability of vapor-liquid equilibrium and liquid 
state calculations, Part 2 enables the calculation of dew points, 
bubble points, and the critical point. BSEE is incorporating by 
reference this standard for the first time into its regulations at 
Sec.  250.198(b)(3) and adding a reference to this standard in Sec.  
250.1203(b)(2)(iii).
3. AGA Report No. 9--Measurement of Gas by Multipath Ultrasonic Meters, 
Fourth Edition, 2022
    AGA Report No. 9 describes the optimum conditions and best 
practices for multipath ultrasonic transit-time flow meters used for 
the measurement of natural gas. Multipath ultrasonic meters have at 
least two independent pairs of measuring transducers (acoustic paths). 
Typical applications include measuring the flow of gas through 
production facilities, transmission pipelines, storage facilities, 
distribution systems, and large end-use customer meter sets. BSEE 
currently requires multipath ultrasonic meters used for gas royalty 
measurement to contain at least three independent pairs of measuring 
transducers. The latest edition of AGA Report 9 allows the calibration 
of ultrasonic meters with laboratory piping in lieu of shipping the 
entire metering package to the calibration lab. BSEE is updating the 
reference of AGA Report No. 9 currently in the regulations to the 
Fourth edition of this standard. BSEE is also renumbering the 
regulatory citation from Sec.  250.198(b)(2) to Sec.  250.198(b)(4), 
this standard is referenced in Sec.  250.1203(b)(2)(iv)).
4. AGA Report No. 11--Measurement of Natural Gas by Coriolis Meter, 
Second Edition, February 2013
    AGA Report No. 11 was developed for the specification, calibration, 
installation, operation, maintenance, and verification of Coriolis flow 
meters and is limited to the measurement of single-phase natural gas, 
consisting primarily of hydrocarbon gases mixed with other associated 
gases usually known as ``diluents.'' Although Coriolis meters are used 
to measure a broad range of compressible fluids, non-natural gas 
applications are beyond the scope of this document. BSEE is 
incorporating by reference this standard for the first time into the 
regulations at Sec.  250.198(b)(6) and adding a reference to this 
standard in Sec.  250.1203(b)(2)(vi).

[[Page 35306]]

5. API Manual of Petroleum Measurement Standards Chapter 3.1A--Standard 
Practice for the Manual Gauging of Petroleum and Petroleum Products, 
Third Edition, August 2013, d December 2018, Errata 1, January 2021
    This document is applicable for gauging quantities of liquids 
having Reid vapor pressures less than 103 kPa (15 psia). This document 
describes the following procedures and influences for manual gauging:
    <bullet> The procedures for manually gauging the liquid level of 
petroleum and petroleum products in non-pressure fixed-roof, floating-
roof tanks and marine tank vessels;
    <bullet> Procedures for manually gauging the level of free water 
that may be found with the petroleum or petroleum products;
    <bullet> Methods used to verify the length of gauge tapes under 
field conditions and the influence of bob weights and temperature on 
the gauge tape length; and
    <bullet> Influences that may affect the position of gauging 
reference point (either the datum plate or the reference gauge point).
    Throughout this standards document, the term petroleum is used to 
denote petroleum, petroleum products, or the liquids normally 
associated with the petroleum industry. The Third Edition added 
sections on gauging procedures, reading and recording gauges, 
operational precautions, and system integrity. This document is 
currently incorporated by reference in Sec.  250.198(e)(10). BSEE is 
updating the incorporation by reference from the Second to the Third 
Edition, acknowledging the 2018 reaffirmation, renumbering the 
regulatory citation to Sec.  250.198(e)(1)(iii)(A), changing the title 
of the standard from API MPMS Chapter 3, Section 1A to API MPMS Chapter 
3.1A, and adding an express reference to this standard in Sec.  
250.1202(a)(2)(iii) and (l)(4)(iii) to clarify the longstanding use of 
this document already incorporated in the current regulations.
6. API Manual of Petroleum Measurement Standards Chapter 4--Proving 
Systems, Section 1--Introduction, Third Edition, February 2005; 
reaffirmed June 2014
    Section 1, Proving Systems, is a general introduction to the 
subject of proving. The requirements in Chapter 4 are based on 
customary practices that evolved for crude oils and products covered by 
API MPMS Ch. 11.1. This document is currently incorporated by reference 
in Sec.  250.198(e)(12). BSEE is updating the incorporation by 
reference in the regulations by renumbering the regulatory citation to 
Sec.  250.198(e)(1)(iv)(A) and adding an express reference to this 
standard in Sec.  250.1202(a)(2)(v) to clarify the longstanding use of 
this document already incorporated in the current regulations.
7. API Manual of Petroleum Measurement Standards Chapter 4--Proving 
Systems, Section 2--Displacement Provers, Third Edition, September 
2003, Addendum February 2015, Reaffirmed December 2022
    This chapter outlines the essential elements of displacement 
provers that do, and do not, accumulate a minimum of 10,000 whole meter 
pulses between detector switches, and provides design and installation 
details for the types of displacement provers that are currently in 
use. The provers discussed in this chapter are designed for proving 
measurement devices under dynamic operating conditions with single-
phase liquid hydrocarbons. These provers consist of a pipe section 
through which a displacer travels and activates detection devices 
before stopping at the end of the run as the stream is diverted or 
bypassed. This document is currently incorporated by reference in Sec.  
250.198(e)(13). BSEE is updating the incorporation by reference in the 
regulations by acknowledging the 2022 reaffirmation and 2015 Addendum, 
renumbering the regulatory citation to Sec.  250.198(e)(1)(iv)(B), and 
adding an express reference to this standard in Sec.  
250.1202(a)(2)(vi) to clarify the longstanding use of this document 
already incorporated in the current regulations.
8. API Manual of Petroleum Measurement Standards Chapter 4.5--Master 
Meter Provers, Fourth Edition, June 2016
    This standard covers the use of displacement, turbine, Coriolis, 
and ultrasonic meters as master meters. The requirements in this 
standard are intended for single-phase liquid hydrocarbons. Meter 
proving requirements for other fluids should be appropriate for the 
overall custody transfer accuracy and should be agreeable to the 
parties involved. The Fourth Edition added sections on Master Meter 
Factors for combined uncertainty, random uncertainty, and related 
examples. This document does not cover master meters to be used for the 
calibration of provers. For information concerning master meter 
calibration of provers, see API MPMS Chapter 4.9.3. The title of this 
standard has also changed from API MPMS Chapter 4, Section 5 to API 
MPMS Chapter 4.5. This document is currently incorporated by reference 
in Sec.  250.198(e)(15). BSEE is updating the incorporation by 
reference from the Second to the Fourth Edition, acknowledging the 2022 
reaffirmation, renumbering the citation and updating the reference to 
this standard in the new Sec.  250.198(e)(1)(iv)(D) to reflect the new 
name of the standard, and adding an express reference to this standard 
in Sec.  250.1202(a)(2)(viii) to clarify the longstanding use of this 
document already incorporated in the current regulations.
9. API Manual of Petroleum Measurement Standards Chapter 4--Proving 
Systems, Section 7--Field Standard Test Measures, Third Edition, April 
2009, Reaffirmed June 2014
    This standard describes the essential elements of field standard 
test measures by providing descriptions, construction requirements, as 
well as inspection, handling, and calibration methods. Bottom-neck 
scale test measures and prover tanks are not addressed in this 
document. The scope of this standard is limited to the certification of 
``delivered volumes'' of test measures. The Third Edition includes 
information on calibration frequency of test measurements and an 
example of a NIST report of calibration. This document is currently 
incorporated by reference in Sec.  250.198(e)(17). BSEE is updating the 
incorporation by reference from the Second to the Third Edition, 
acknowledging the 2014 reaffirmation, renumbering the regulatory 
citation to Sec.  250.198(e)(1)(iv)(F), and adding an express reference 
to this standard in Sec.  250.1202(a)(2)(x) to clarify the longstanding 
use of this document already incorporated in the current regulations.
10. API Manual of Petroleum Measurement Standards Chapter 4.8--
Operation of Proving Systems, Third Edition, July 2021
    This standard provides information for operating meter provers on 
single-phase liquid hydrocarbons. It is a reference manual for 
operating proving systems. The requirements of this chapter are based 
upon customary practices for single-phase liquids. The standard is 
purposely written for hydrocarbons, but much of the information 
contained may be applicable to other liquids. Specific requirements for 
other liquids should be agreeable to parties involved. The Third 
Edition added information on frequency of meter proving, proving 
locations, types of provers, calibration frequency,

[[Page 35307]]

and proving concerns. The title of this standard also changed from API 
MPMS Chapter 4, Section 8 to API MPMS Chapter 4.8. This document is 
currently incorporated by reference in Sec.  250.198(e)(18). BSEE is 
updating the incorporation by reference from the First to the Third 
Edition, renumbering the regulatory citation to Sec.  
250.198(e)(1)(iv)(G), changing the title of the standard from API MPMS 
Chapter 4, Section 8 to API MPMS Chapter 4.8, and updating the 
references to this standard in Sec.  250.1202(a)(2)(xi), (a)(3)(i), 
(f)(1)(ii), and (g)(1) to reflect the new name of the standard.
11. API Manual of Petroleum Measurement Standards Chapter 4--Proving 
Systems, Section 9--Methods of Calibration for Displacement and 
Volumetric Tank Provers, Part 2--Determination of the Volume of 
Displacement and Tank Provers by the Water-Draw Method of Calibration, 
First Edition, December 2005, Reaffirmed July 2015
    This standard covers all the procedures required to determine the 
field data necessary to calculate a base prover volume, of either 
displacement provers or volumetric tank provers, by the water-draw 
method of calibration. The document will enable the user to perform all 
the activities necessary to prepare the prover, conduct calibration 
runs, and record all the required data necessary to calculate the base 
volumes of displacement and tank provers. Evaluation of the results and 
troubleshooting of many calibration problems are also discussed. 
Detailed calculation procedures are not included in this standard. BSEE 
will incorporate by reference this standard into the regulations for 
the first time at Sec.  250.198(e)(1)(iv)(H) and add a reference to 
this standard in Sec.  250.1202(a)(2)(xii).
12. API Manual of Petroleum Measurement Standards Chapter 5--Metering, 
Section 1--General Considerations for Measurement by Meters, Fourth 
Edition, September 2005, Errata 1 June 2008, Errata 2 June 2011, 
Reaffirmed December 2022
    API MPMS Chapter 5 is a guide for the proper specification, 
installation, and operation of meter runs designed to dynamically 
measure liquid hydrocarbons so that acceptable accuracy, service life, 
safety, reliability, and quality control can be achieved. API MPMS 
Chapter 5 also includes information that will assist in troubleshooting 
and improving the performance of meters. This document is currently 
incorporated by reference in Sec.  250.198(e)(19). BSEE is updating the 
incorporation by reference in the regulations by acknowledging the 2022 
reaffirmation and 2008/2011 Errata. The errata corrected printing 
errors of references at the end of a paragraph, e.g., ``Paragraph 
5.1.9.4.2, the reference at the end of the paragraph should read: (see 
5.1.9.5).'' BSEE is also renumbering the citation to Sec.  
250.198(e)(1)(v)(A), and adding an express reference to this standard 
in Sec.  250.1202(a)(2)(xiii) to clarify the longstanding use of this 
document already incorporated in the current regulations.
13. API Manual of Petroleum Measurement Standards Chapter 5--Metering, 
Section 3--Measurement of Liquid Hydrocarbons by Turbine Meters, Fifth 
Edition, September 2005; Reaffirmed August 2014
    Section 3 of API MPMS Chapter 5 covers the unique installation 
requirements and performance characteristics of turbine meters in 
liquid-hydrocarbon service. This document is currently incorporated by 
reference in Sec.  250.198(e)(21). BSEE is updating the incorporation 
by reference in the regulations by renumbering the regulatory citation 
to Sec.  250.198(e)(1)(v)(C) and adding an express reference to this 
standard in Sec.  250.1202(a)(2)(xv) to clarify the longstanding use of 
this document already incorporated in the current regulations.
14. API Manual of Petroleum Measurement Standards Chapter 5--Metering, 
Section 4--Accessory Equipment for Liquid Meters, Fourth Edition, 
September 2005; Errata May 2015, Reaffirmed August 2015
    Section 4 of API MPMS Chapter 5 describes the characteristics of 
accessory equipment that may be used with meters in liquid hydrocarbon 
service. Having a knowledge of these characteristics helps designers 
and operators of meter installations provide satisfactory quantity 
measurement results. Certain minimum requirements for devices that 
monitor temperature, density, and pressure are discussed in this 
section. Most system hardware, such as non-control valves, vents, and 
manifolding, is not discussed in this section. API reaffirmed the 
standard without substantive change in August 2015. This document is 
currently incorporated by reference in Sec.  250.198(e)(22). BSEE is 
updating the incorporation by reference in the regulations by 
acknowledging the 2015 reaffirmation, renumbering the regulatory 
citation to Sec.  250.198(e)(1)(v)(D), and adding an express reference 
to this standard in Sec.  250.1202(a)(2)(xvi) to clarify the 
longstanding use of this document already incorporated in the current 
regulations.
15. API Manual of Petroleum Measurement Standards Chapter 5--Metering, 
Section 5--Fidelity and Security of Flow Measurement Pulsed-Data 
Transmission Systems, Second Edition, August 2005; Reaffirmed August 
2015
    The recommendations set forth in this publication are concerned 
only with the fidelity and security of pulsed-data, cabled transmission 
systems between a flow meter or flow meter transducer and a remote 
totalizer. API reaffirmed the standard without substantive change in 
August 2015. This document is currently incorporated by reference in 
Sec.  250.198(e)(23). BSEE is updating the incorporation by reference 
in the regulations by acknowledging the 2015 reaffirmation, renumbering 
the regulatory citation to Sec.  250.198(e)(1)(v)(E), and adding an 
express reference to this standard in Sec.  250.1202(a)(2)(xvii) to 
clarify the longstanding use of this document already incorporated in 
the current regulations.
16. API Manual of Petroleum Measurement Standards Chapter 5.8--
Measurement of Liquid Hydrocarbons by Ultrasonic Flow Meters, Second 
Edition, November 2011, Errata February 2014, Reaffirmed May 2017
    This document defines the application criteria for Ultrasonic Flow 
Meters (UFMs) and addresses the appropriate considerations regarding 
the liquids to be measured. Also, this document addresses the 
installation, operation, and maintenance of UFMs in liquid hydrocarbon 
service. This document pertains only to spool type, two or more path 
ultrasonic flow meters with permanently affixed transducer assemblies. 
While this document was specifically written for custody transfer 
measurement, other acceptable applications may include allocation 
measurement, check meter measurement, and leak detection measurement. 
The Second Edition updated the normative references and the sections on 
meter performance, accuracy, and repeatability. The title of this 
standard also changed from API MPMS Chapter 5, Section 8 to API MPMS 
Chapter 5.8. This document is currently incorporated by reference in 
Sec.  250.198(e)(25). BSEE is updating the incorporation by reference 
from the First to the Second Edition, acknowledging the 2017 
reaffirmation

[[Page 35308]]

and 2011 Errata, renumbering the regulatory citation to Sec.  
250.198(e)(1)(v)(G), and updating the references to this standard in 
Sec.  250.1202(a)(2)(xix) and (a)(3)(iii) to reflect the new name of 
the standard.
17. API Manual of Petroleum Measurement Standards Chapter 6.1--Lease 
Automatic Custody Transfer (LACT) Systems, Second Edition, May 1991, 
Addendum 1 August 2020
    This publication describes the metering function of a LACT unit. 
LACT equipment includes a meter (either displacement or turbine), a 
proving system (either fixed or portable), devices for determining 
temperature and pressure and for sampling the liquid, and a means of 
determining non-merchantable oil. Many of the aspects of the metering 
function of a LACT unit are considered at length in other parts of this 
manual and are referenced in paragraph 6.1.4. The title of this 
standard changed from API MPMS Chapter 6, Section 1 to API MPMS Chapter 
6.1, and the 2020 Addendum added information on determining normal 
operating conditions. This document is currently incorporated by 
reference in Sec.  250.198(e)(26). BSEE is updating the incorporation 
by reference in the regulations by acknowledging the 2020 addendum, 
renumbering the regulatory citation to Sec.  250.198(e)(1)(vi)(A), 
updating the reference to this standard to reflect the new name of the 
standard, and adding an express reference to this standard in Sec.  
250.1202(a)(2)(xx) to clarify the longstanding use of this document 
already incorporated in the current regulations.
18. API Manual of Petroleum Measurement Standards Chapter 7.1--
Temperature Determination-Liquid-in-Glass Thermometers, Second Edition, 
August 2017
    API MPMS Chapter 7.1 describes the methods, equipment, and 
procedures for manually determining the temperature of liquid petroleum 
and petroleum products under both static and dynamic conditions with 
liquid-in-glass thermometers. API MPMS Chapter 7.1 is specific to 
liquid-in-glass thermometers. Further, Chapter 7.1 discusses 
temperature measurement requirements in general for custody transfer, 
inventory control, and marine measurements. The actual method and 
equipment selected for temperature determination are left to the 
agreement of the parties involved. The manual method covers non-
pressurized tanks and non-pressurized marine vessels and gas-blanketed 
tanks and gas-blanketed marine vessels. It does not cover hydrocarbons 
under pressures in excess of 21 kPa (3 psi gauge) or cryogenic 
temperature measurement, unless equipped with a thermowell.
    API MPMS Chapters 7.1, 7.2, 7.3, and 7.4 supersede API MPMS Chapter 
7, Temperature Determination, First Edition, June 2001, which is 
currently incorporated by reference at Sec.  250.198(e)(29). API has 
withdrawn API MPMS Chapter 7. BSEE is removing API MPMS Chapter 7 from 
the regulations and incorporating by reference API MPMS Chapter 7.1 for 
the first time into the regulations at Sec.  250.198(e)(1)(vii)(A). 
BSEE is also adding an express reference to this standard in Sec.  
250.1202(a)(2)(xxiii).
19. API Manual of Petroleum Measurement Standards Chapter 7.3--
Temperature Determination--Temperature Determination--Fixed Automatic 
Tank Temperature Systems, Second Edition, October 2011, Reaffirmed 
September 2021
    API MPMS Chapter 7.3 describes the methods, equipment, and 
procedures for determining the temperature of petroleum and petroleum 
products under static conditions by the use of an automatic method. 
Automatic temperature measurement is discussed for custody transfer and 
inventory control for both onshore and marine measurement applications. 
Temperatures of hydrocarbon liquids under static conditions can be 
determined by measuring the temperature of the liquid at specific 
locations. Examples of where static temperature determination is 
required include storage tanks, ships, and barges. The application of 
this standard is restricted to automatic methods for the determination 
of temperature using fixed automatic tank thermometer (ATT) systems for 
hydrocarbons having a Reid Vapor Pressure at or below 101.325 kPa 
(14.696 psia).
    As previously mentioned, API MPMS Chapters 7.1, 7.2, 7.3, and 7.4 
supersede API MPMS Chapter 7, Temperature Determination, First Edition, 
June 2001, which is currently incorporated by reference at Sec.  
250.198(e)(29). API has withdrawn API MPMS Chapter 7. BSEE is removing 
API MPMS Chapter 7 from the regulations and incorporating by reference 
API MPMS Chapter 7.3 for the first time into the regulations at Sec.  
250.198(e)(1)(vii)(B). BSEE is also adding an express reference to this 
standard in Sec.  250.1202(a)(2)(xxiv).
20. API Manual of Petroleum Measurement Standards Chapter 8.1--Standard 
Practice for Manual Sampling of Petroleum and Petroleum Products, Sixth 
Edition, September 2022
    This practice covers procedures and equipment for manually 
obtaining samples of liquid petroleum and petroleum products, crude 
oils, and intermediate products from the sample point into the primary 
container. Procedures are also included for the sampling of free water 
and other heavy components associated with petroleum and petroleum 
products. This practice also addresses the sampling of semi-liquid or 
solid-state petroleum products. This practice provides additional 
specific information about sample container selection, preparation, and 
sample handling. This practice does not cover sampling of electrical 
insulating oils and hydraulic fluids. If sampling is for the precise 
determination of volatility, use Practice D5842 (API MPMS Chapter 8.4) 
in conjunction with this practice. For sample mixing and handling, 
refer to Practice D5854 (API MPMS Chapter 8.3). The title of this 
section changed from API MPMS Chapter 8, Section 1 to API MPMS Chapter 
8.1, and the Sixth Edition added sections on health and safety 
precautions, sampling requirements, considerations, and procedures, as 
well as instructions for special products. This document is currently 
incorporated by reference in Sec.  250.198(e)(30). BSEE is updating the 
incorporation by reference in the regulations by updating the reference 
from the Third Edition to the Sixth Edition, renumbering the regulatory 
citation to Sec.  250.198(e)(1)(viii)(A), updating the reference to 
this standard to reflect the new name of the standard, and adding 
express references to this standard in Sec.  250.1202(a)(2)(xxv) and 
Sec.  250.1202(k)(1) to clarify the longstanding use of this document 
already incorporated in the current regulations.
21. API Manual of Petroleum Measurement Standards Chapter 8.2--Standard 
Practice for Automatic Sampling of Liquid Petroleum and Petroleum 
Products, Sixth Edition, September 2022
    This document describes general procedures and equipment for 
automatically obtaining samples of liquid petroleum and petroleum 
products, crude oils, and intermediate products from the sample point 
into the primary container. This practice also provides additional 
specific information about sample container selection,

[[Page 35309]]

preparation, and sample handling. If sampling is for the precise 
determination of volatility, use Practice D5842 (API MPMS Chapter 8.4) 
in conjunction with this practice. For sample mixing and handling, 
refer to Practice D5854 (API MPMS Chapter 8.3). This practice does not 
cover sampling of electrical insulating oils and hydraulic fluids. 
Combining values from the two systems may result in non-conformance 
with the standard. This standard was developed in accordance with 
internationally recognized principles on standardization established in 
the Decision on Principles for the Development of International 
Standards, Guides and Recommendations issued by the World Trade 
Organization Technical Barriers to Trade Committee. The title of this 
standard changed from API MPMS Chapter 8, Section 2 to API MPMS Chapter 
8.2. The Sixth Edition added representative sampling components and 
performance criteria. This document is currently incorporated by 
reference in Sec.  250.198(e)(31). BSEE is updating the incorporation 
by reference in the regulations by updating the reference from the 
Second Edition to the Sixth Edition, renumbering the regulatory 
citation to Sec.  250.198(e)(1)(viii)(B), updating the reference to 
this standard to reflect the new name of the standard, and adding 
express references to this standard in Sec.  250.1202(a)(2)(xxvi), 
Sec.  250.1202(b)(4)(i), and Sec.  250.1202(k)(1) to clarify the 
longstanding use of this document already incorporated in the current 
regulations.
22. API Manual of Petroleum Measurement Standards Chapter 8.3--Standard 
Practice for Mixing and Handling of Liquid Samples of Petroleum and 
Petroleum Products, Second Edition, September 2019
    This practice covers handling, mixing, and conditioning procedures 
that are required to ensure that a representative sample of the liquid 
petroleum or petroleum product is delivered from the primary sample 
container or other container or both into the analytical apparatus or 
into intermediate containers. Appendix X1 in this document details the 
background information on the development of Table 1 used in 
performance testing. Appendix X2 provides guidance in the acceptance 
testing for water in crude oil. Appendix X3 provides a guide for 
materials of sample containers. Appendix X4 provides a summary of 
recommended mixing procedures. Appendix X5 provides a flow chart for 
sample container/mixing system acceptance test. The Second Edition 
added text on labeling, transport, mixing, sample integrity, storage, 
preservation, and audit. BSEE is incorporating by reference this 
standard for the first time into the regulations at Sec.  
250.198(e)(1)(viii)(C) and adding a reference to this standard in Sec.  
250.1202(a)(2)(xxvii).
23. API Manual of Petroleum Measurement Standards Chapter 9.1--Standard 
Test Method for Density, Relative Density, or API Gravity of Crude 
Petroleum and Liquid Petroleum Products by Hydrometer Method, Third 
Edition, December 2012, Reaffirmed May 2017
    This test method covers the laboratory determination of the 
density, relative density, or API gravity of crude petroleum, petroleum 
products, or mixtures of petroleum and nonpetroleum products normally 
handled as liquids and having a Reid vapor pressure of 101.325 kPa 
(14.696 psi) or less. The relevant test method involves using a glass 
hydrometer in conjunction with a series of calculations. Values are 
determined at existing temperatures and corrected to 15[deg]C or 60 
[deg]F by means of a series of calculations and international standard 
tables. The title of this standard changed from API MPMS Chapter 9, 
Section 1 to API MPMS Chapter 9.1, and the newer (i.e., third) edition 
includes information on procedures, reporting, and precision and bias. 
The Third Edition was reaffirmed in May 2017. This document is 
currently incorporated by reference in Sec.  250.198(e)(32). BSEE is 
updating the incorporation by reference from the 2002 Second Edition to 
the 2012 Third Edition, acknowledging the 2017 reaffirmation, 
renumbering the regulatory citation to Sec.  250.198(e)(1)(ix)(A), and 
adding an express reference to this standard in Sec.  
250.1202(a)(2)(xxviii) to clarify the longstanding use of this document 
already incorporated in the current regulations.
24. API Manual of Petroleum Measurement Standards Chapter 9.2--Standard 
Test Method for Density or Relative Density of Light Hydrocarbons by 
Pressure Hydrometer, Fourth Edition, November 2022
    This test method covers the determination of the density or 
relative density of light hydrocarbons including liquefied petroleum 
gases (LPG) having Reid vapor pressures exceeding 101.325 kPa (14.696 
psi). The prescribed apparatus should not be used for materials having 
vapor pressures higher than 1.4 MPa (200 psi) at the test temperature. 
This pressure limit is dictated by the type of equipment. Higher 
pressures can apply to other equipment designs. The initial pressure 
hydrometer readings obtained are uncorrected hydrometer readings and 
not density measurements. Readings are measured on a hydrometer at 
either the reference temperature or at another convenient temperature, 
and readings are corrected for the meniscus effect, the thermal glass 
expansion effect, alternate calibration temperature effects, and to the 
reference temperature by means of calculations and Adjunct to D1250 
Guide for Petroleum Measurement Tables (API MPMS Chapter 11.1) or API 
MPMS Chapter 11.2.4 (GPA TP-27), as applicable. The Fourth Edition 
includes distinguishing mandatory information and amends the referenced 
documents section, and the title of this standard changed from API MPMS 
Chapter 9, Section 2 to API MPMS Chapter 9.2. This document is 
currently incorporated by reference in Sec.  250.198(e)(33). BSEE is 
updating the incorporation by reference from the 2003 Second Edition to 
the 2022 Fourth Edition, renumbering the regulatory citation and 
updating the reference to this standard in the new Sec.  
250.198(e)(1)(ix)(B) to reflect the new name of the standard, and 
adding an express reference to this standard in Sec.  
250.1202(a)(2)(xxix) to clarify the longstanding use of this document 
already incorporated in the current regulations.
25. API Manual of Petroleum Measurement Standards Chapter 9.4--
Continuous Density Measurement Under Dynamic (Flowing) Conditions, 
First Edition, January 2018
    This document covers the continuous on-line determination and 
application of flowing liquid densities for custody transfer. This 
document covers liquid and dense phase fluids, including natural gas 
liquids, refined products, chemicals, crude oil, and other liquid 
products commonly encountered in the petroleum industry. This document 
does not apply to the density measurement of natural gas, liquified 
natural gas, multiphase mixtures, semi-solid liquids such as asphalt, 
and solids such as coke and slurries. This standard also provides 
criteria and procedures for designing, installing, operating, and 
proving continuous on-line density measurement systems for custody 
transfer. This standard also discusses the different levels and 
requirements of accuracy for various applications. The API withdrew API 
MPMS Chapter 14--Natural Gas Fluids Measurement, Section 6--Continuous 
Density Measurement, and superseded it with

[[Page 35310]]

API MPMS Chapter 9.4. Thus, as described in the proposed rule, BSEE is 
removing API MPMS Chapter 14, Section 6 from existing Sec.  
250.198(e)(51). BSEE is also incorporating by reference API MPMS 
Chapter 9.4 for the first time into the regulations at Sec.  
250.198(e)(1)(ix)(C) and adding a reference to this standard in Sec.  
250.1202(a)(2)(xxx).
26. API Manual of Petroleum Measurement Standards Chapter 10.2--
Standard Test Method for Water in Crude Oil by Distillation, Fifth 
Edition, December 2022
    This test method covers the determination of water in crude oil by 
distillation. The values stated in the International System of Units 
(SI units) are to be regarded as standard. No other units of 
measurement are included in this standard. The Fifth Edition 
accumulated references to ASTM documents and API documents associated 
terms and terminology along with related text. The title of this 
standard also changed from API MPMS Chapter 10, Section 2 to API MPMS 
Chapter 10.2. This document is currently incorporated by reference in 
Sec.  250.198(e)(35). BSEE is updating the incorporation by reference 
from the 2007 Second Edition to the 2022 Fifth Edition, renumbering the 
regulatory citation to Sec.  250.198(e)(1), updating the reference to 
this standard in the new Sec.  250.198(e)(1)(x)(B) to reflect the new 
name of the standard, and adding an express reference to this standard 
in Sec.  250.1202(a)(2)(xxxii) to clarify the longstanding use of this 
document already incorporated in the current regulations.
27. API Manual of Petroleum Measurement Standards Chapter 10.3--
Standard Test Method for Water and Sediment in Crude Oil by the 
Centrifuge Method (Laboratory Procedure), Fifth Edition, December 2022
    This test method describes the laboratory determination of water 
and sediment in crude oils by means of the centrifuge procedure. This 
centrifuge method for determining water and sediment in crude oils is 
not entirely satisfactory. The amount of water detected is almost 
always lower than the actual water content. When a highly accurate 
value is required, the revised procedures for water by distillation, 
Test Method D4006 (API MPMS Chapter 10.2) (Note 1), and sediment by 
extraction, Test Method D473 (API MPMS Chapter 10.1), must be used. 
Test Method D4006 (API MPMS Chapter 10.2) has been determined to be the 
preferred and most accurate method for the determination of water. The 
values stated in SI units are to be regarded as standard. The Fifth 
Edition provides additional references to ASTM documents and API 
documents, mandatory and nonmandatory documents, test methods and 
associated terms and terminology, and additional information on 
constraints. The title of this standard also changed from API MPMS 
Chapter 10, Section 3 to API MPMS Chapter 10.3. This document is 
currently incorporated by reference in Sec.  250.198(e)(36). BSEE is 
updating the incorporation by reference from the 2008 Third Edition to 
the 2022 Fifth Edition, renumbering the regulatory citation to Sec.  
250.198(e)(1)(x)(C), updating the reference to this standard to reflect 
the new name of the standard, and adding an express reference to this 
standard in Sec.  250.1202(a)(2)(xxxiii) to clarify the longstanding 
use of this document already incorporated in the current regulations.
28. API Manual of Petroleum Measurement Standards Chapter 10.4--
Determination of Water and/or Sediment in Crude Oil by the Centrifuge 
Method (Field Procedure), Fifth Edition, August 2020
    This document describes the field centrifuge method for determining 
both sediment and water or sediment only in crude oil. This method may 
not always produce the most accurate results, but it is considered the 
most practical method for field determination of sediment and water. 
This method may also be used for field determination of sediment. When 
a higher degree of accuracy is required, the laboratory procedure 
described in API MPMS Ch. 10.3, Standard Test Method for Water and 
Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure) 
(ASTM D4007); API MPMS Chapter 10.2, Standard Test Method for Water in 
Crude Oil by Distillation (ASTM D4006); or API MPMS Chapter 10.9, 
Standard Test Method for Water in Crude Oils by Coulometric Karl 
Fischer Titration (ASTM D4928); and the procedure described in API MPMS 
Chapter 10.1, Standard Test Method for Sediment in Crude Oils and Fuel 
Oils by the Extraction Method (ASTM D473) should be used. The Fifth 
Edition amended the text concerning procedures, calculations, and 
reporting related to centrifuge tube spin calculations, test 
procedures, and test reading requirements. The title of this standard 
also changed from API MPMS Chapter 10, Section 4 to API MPMS Chapter 
10.4. This document is currently incorporated by reference in Sec.  
250.198(e)(37). BSEE is updating the incorporation by reference from 
the 1999 Third Edition to the 2020 Fifth Edition, renumbering the 
regulatory citation and updating the reference to this standard to 
reflect the new name in the new Sec.  250.198(e)(1)(x)(D), and adding 
an express reference to this standard in Sec.  250.1202(a)(2)(xxxiv) to 
clarify the longstanding use of this document already incorporated in 
the current regulations.
29. API Manual of Petroleum Measurement Standards Chapter 10.9--
Standard Test Method for Water in Crude Oils by Coulometric Karl 
Fischer Titration, Third Edition, May 2013, Reaffirmed June 2018
    This test method covers the determination of water in the range 
from 0.02 to 5.00 mass or volume % in crude oils. Mercaptan (RSH) and 
sulfide (S- or H2S) as sulfur are known to interfere with this test 
method, but at levels of less than 500 [mu]/g [ppm(m)], the 
interference from these compounds is insignificant. This test method 
can be used to determine water in the 0.005 to 0.02 mass % range, but 
the effects of the mercaptan and sulfide interference at these levels 
has not been determined. For the range 0.005 to 0.02 mass %, there is 
no precision or bias statement. This test method is intended for use 
with standard commercially available coulometric Karl Fischer reagent. 
The values stated in SI units are to be regarded as standard. No other 
units of measurement are included in this standard. The Third Edition 
was updated with modern terminology to bring content into compliance 
with existing practices. The title of this standard also changed from 
API MPMS Chapter 10, Section 9 to API MPMS Chapter 10.9. This document 
is currently incorporated by reference in Sec.  250.198(e)(38). BSEE is 
updating the incorporation by reference from the 2002 Second Edition to 
the 2013 Third Edition, renumbering the regulatory citation and 
updating the reference to this standard in the new Sec.  
250.198(e)(1)(x)(E) to reflect the new name of the standard, and adding 
an express reference to this standard in Sec.  250.1202(a)(2)(xxxv) to 
clarify the longstanding use of this document already incorporated in 
the current regulations.

[[Page 35311]]

30. API Manual of Petroleum Measurement Standards Chapter 11--Physical 
Properties Data, Section 1--Temperature and Pressure Volume Correction 
Factors for Generalized Crude Oils, Refined Products, and Lubricating 
Oils, 2004 Edition, May 2004, Addendum 1 September 2007, Addendum 2 May 
2019
    This standard provides the algorithm and implementation procedure 
for the correction of temperature and pressure effects on density and 
volume of liquid hydrocarbons which fall within the categories of crude 
oil, refined products, or lubricating oils. Natural gas liquids and 
liquid petroleum gases are excluded from consideration in this 
standard. The combination of density and volume correction factors for 
both temperature and pressure are collectively referred to in this 
standard as a Correction for Temperature and Pressure of a Liquid. The 
temperature portion of this correction is termed the Correction for the 
Effect of Temperature on Liquid, also historically known as Volume 
Correction Factor. The pressure portion is termed the Correction for 
the Effect of Pressure on Liquid. This standard includes a 2019 
Addendum that added 33 pages concerning compressibility, volume 
corrections, new terms, gauge pressure, and procedures. This document 
is currently incorporated by reference in Sec.  250.198(e)(41). BSEE is 
updating the incorporation by reference by acknowledging the 2019 
Addendum, renumbering the regulatory citation of the incorporation by 
reference to Sec.  250.198(e)(1)(xi)(B), and maintaining the references 
to this standard at Sec.  250.1202(a)(2)(xxxvi), (a)(3)(iv), (g)(2), 
and (l)(4)(v).
31. API Manual of Petroleum Measurement Standards Chapter 12.2--
Calculation of Petroleum Quantities Using Dynamic Measurement Methods 
and Volumetric Correction Factors, Second Edition, July 2021
    API MPMS Chapter 12.2 (2021) provides standardized calculation 
methods for the quantification of liquids, regardless of the point of 
origin or destination or the units of measure required by governmental 
customs or statute. The criteria contained in this document allow 
different entities using various computer languages on different 
computer hardware (or manual calculations) to arrive at output results 
within a defined tolerance within this document, using the same input 
data. The document specifies the equations for computing correction 
factors, rules for rounding, calculation sequence, and discrimination 
levels to be employed in the calculations. The intent of this document 
is to serve as a rigorous standard regarding the quantification of 
petroleum quantities. This document also covers multiple calculations 
as required by dynamic, online, integrated, continuous flow 
measurement.
    BSEE had proposed to remove API MPMS Chapter 12, Section 2, parts 
1, 2, and 3 from the regulations since API MPMS Chapter 12.2 supersedes 
these three standards and API withdrew these three standards. However, 
as discussed later when discussing the summary of comments related to 
API MPMS Chapter 12.2, BSEE is delaying the compliance date of API MPMS 
Chapter 12.2 as it pertains to existing measurement systems on the OCS 
to August 11, 2031. During this time, measurement systems on the OCS in 
existence prior to August 10, 2026 may comply with API MPMS Chapter 12, 
Section 2, Part 1, API MPMS Chapter 12, Section 2, Part 2, and API MPMS 
Chapter 12, Section 2, Part 3 in lieu of API MPMS Chapter 12.2, but 
must comply with API MPMS Chapter 12.2 no later than August 11, 2031. 
Therefore, BSEE will not remove these standards from the regulations 
and will renumber them to Sec.  250.198(e)(1)(xii)(A) to (C). However, 
measurement systems on the OCS in existence prior to August 10, 2026 
must be in compliance with API MPMS Chapter 12.2 by August 11, 2031. 
All new measurement systems approved after August 10, 2026 must comply 
with API MPMS Chapter 12.2. BSEE is incorporating by reference API MPMS 
Chapter 12.2 for the first time into the regulations at Sec.  
250.198(e)(1)(xii)(E) and adding a reference to this standard in Sec.  
250.1202(a)(2)(xxxviii).
32. API Manual of Petroleum Measurement Standards Chapter 14.1--
Collecting and Handling of Natural Gas Samples for Analysis by Gas 
Chromatography, Eighth Edition, September 2022
    This standard provides comprehensive guidelines and procedures for 
properly extracting, collecting, conditioning, and handling a sample 
from a flowing natural gas stream at or above its dew point temperature 
and that represents the composition of the vapor-phase portion of the 
source fluid. This standard considers spot, composite, continuous, 
online, and mobile sampling systems and does not include sampling of 
liquid or multiphase streams. BSEE is incorporating by reference the 
Eighth Edition of API MPMS Chapter 14.1 for the first time into the 
regulations at Sec.  250.198(e)(1)(xiii)(A) and adding a reference to 
this standard in Sec.  250.1203(b)(2)(x).
33. API Manual of Petroleum Measurement Standards Chapter 14.3.1--
Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids--
Concentric, Square-Edged Orifice Meters, Part 1: General Equations and 
Uncertainty Guidelines, Fourth Edition, September 2012, Errata July 
2013, Reaffirmed September 2017
    This standard provides a single reference for engineering 
equations, uncertainty, estimations, construction, and installation 
requirements, and standardized implementation recommendations for the 
calculation of flow rate through concentric, square-edged, flange-
tapped orifice meters. Both U.S. customary and SI units are included. 
The standard is organized into four parts. Parts 1, 2, and 4 apply to 
the measurement of any Newtonian fluid in the petroleum and chemical 
industries. Part 3 focuses on the application of parts 1, 2, and 4 to 
the measurement of natural gas. The Fourth Edition made changes to 
equations to bring them into conformance with more recent practice. An 
Errata was made in 2013 and the standard was reaffirmed in 2017. The 
title of this standard also changed from API MPMS Chapter 14, Section 
3, Part 1 to API MPMS Chapter 14.3.1. BSEE is updating the 
incorporation by reference from the 1990 Third Edition to the 2012 
Fourth Edition, acknowledging the 2013 Errata and 2017 reaffirmation, 
renumbering the regulatory citation and updating the reference to this 
standard in the new Sec.  250.198(e)(1)(xiii)(B) to reflect the new 
name of the standard, and adding an express reference to this standard 
in Sec.  250.1203(b)(2)(xi) to clarify the longstanding use of this 
document already incorporated in the current regulations.
34. API Manual of Petroleum Measurement Standards Chapter 14.3.2--
Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids--
Concentric, Square-Edged Orifice Meters, Part 2: Specification and 
Installation Requirements, Fifth Edition, March 2016, Errata 1, March 
2017, Errata 2, January 2019
    This publication outlines the specification and installation 
requirements for the measurement of single-phase, homogenous Newtonian 
fluids using concentric, square-edged, flange-tapped orifice meters. It 
provides specifications for the construction and installation of 
orifice plates, meter tubes, and associated fittings when designing 
metering facilities using orifice meters. The Fifth Edition made

[[Page 35312]]

changes concerning normative references, specifications, 
considerations, and installation requirements. Two Errata were made in 
2017 and in 2019, and the title of this standard also changed from API 
MPMS Chapter 14, Section 3, Part 2 to API MPMS Chapter 14.3.2. This 
document is currently incorporated by reference in Sec.  
250.198(e)(48). BSEE is updating the incorporation by reference from 
the 2000 Fourth Edition to the 2016 Fifth Edition, acknowledging the 
2017/2019 Errata, renumbering the regulatory citation and updating the 
reference to this standard in the new Sec.  250.198(e)(1)(xiii)(C) to 
reflect the new name of the standard, and adding an express reference 
to this standard in Sec.  250.1203(b)(2)(xii) to clarify the 
longstanding use of this document already incorporated in the current 
regulations.
35. API Manual of Petroleum Measurement Standards Chapter 14.3.3--
Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids--
Concentric Square-Edged Orifice Meters, Part 3: Natural Gas 
Applications, Fourth Edition, November 2013, Reaffirmed June 2021
    This standard was developed as an application guide for the 
calculation of natural gas flow through a flange-tapped, concentric 
orifice meter, using the U.S. customary inch-pound system of units. It 
also provides practical guidelines for applying MPMS 14.3.1 and MPMS 
14.3.2 to the measurement of natural gas. The Fourth Edition made 
changes in the applicability of the use of standard conditions and 
added functionality to the flow equations. The title of this standard 
changed from API MPMS Chapter 14, Section 3, Part 3 to API MPMS Chapter 
14.3.3. API MPMS Chapter 14.3.3 was reaffirmed in 2021. This document 
is currently incorporated by reference in Sec.  250.198(e)(49). BSEE is 
updating the incorporation by reference from the Third Edition to the 
2013 Fourth Edition, acknowledging the 2021 reaffirmation, renumbering 
the regulatory citation and updating the reference to this standard in 
the new Sec.  250.198(e)(1)(xiii)(D) to reflect the new name of the 
standard, and adding an express reference to this standard in Sec.  
250.1203(b)(2)(xiii) to clarify the longstanding use of this document 
already incorporated in the current regulations.
36. API Manual of Petroleum Measurement Standards Chapter 20--
Allocation Measurement, Section 1-Allocation Measurement, First 
Edition, September 1993, Addendum 1 January 2013, Addendum 2 November 
2016, Addendum 3 December 2017, Reaffirmed June 2024
    This standard provides design and operating guidelines for liquid 
and gas allocation measurement systems. It includes recommendations for 
metering, static measurement, sampling, proving, calibrating, and 
calculating procedures. API MPMS Chapter 20.3, First Edition, which 
BSEE is incorporating by reference in Sec.  250.198(e)(1), supersedes 
certain sections of API MPMS Chapter 20, Section 1, including sections 
1.16.1, 1.16.3, 1.16.3.1, 1.16.3.2, and 1.16.3.3. An addendum was made 
to the First Edition in 2013, 2016, and 2017, which addressed 
measurement, calibration, equipment, and testing. The First Edition was 
reaffirmed in June 2024. This document is currently incorporated by 
reference in Sec.  250.198(e)(53). BSEE is updating the incorporation 
by reference by acknowledging the addenda and reaffirmation, 
renumbering the regulatory citation to Sec.  250.198(e)(1)(xiv)(A), 
excluding sections 1.16.1, 1.16.3, 1.16.3.1, 1.16.3.2, and 1.16.3.3 of 
the First Edition from the incorporation by reference, and adding an 
express reference to this standard in Sec. Sec.  250.1202(a)(2)(xxxix) 
and 250.1203(b)(2)(xvi) to clarify the longstanding use of this 
document already incorporated in the current regulations.
37. API Manual of Petroleum Measurement Standards Chapter 20.3--
Measurement of Multiphase Flow, First Edition January 2013; Reaffirmed 
October 2018
    This publication addresses multiphase flow measurement in the 
production environment, upstream of the custody transfer (single-phase) 
measurement point, where allocation measurement for onshore, offshore, 
or subsea is applied. For other multiphase flow measurement 
applications such as reservoir management, well tests, and flow 
assurance, the standard can be used as a reference or guide. However, 
the focus of this standard is on those applications where the accuracy 
of multiphase flow measurement for allocation systems is required. This 
document refers to existing standards and RPs to supplement the 
guidance it provides in this subject area. The document addresses 
principles used in multiphase flow measurement, multiphase metering 
types and classifications, assessment of expected performance, and in 
selecting and operating multiphase measurement systems. It addresses 
operational requirements or constraints, including expectations for 
flow meter acceptance, calibration criteria, flow loop and in situ 
verifications, and other guidance specific to different multiphase flow 
metering applications. The document does not address specific meter 
configurations.
    API MPMS Chapter 20.3 supersedes API RP 86, Recommended Practice 
for Measurement of Multiphase Flow, September 2005, located in the 
existing regulations at Sec.  250.198(e)(76). API RP 86 was a document 
that provided best practices as of 2005. API MPMS Chapter 20.3 provides 
advances in multiphase flow measurement. BSEE is removing API RP 86 
from the regulations and incorporating by reference API MPMS Chapter 
20.3 for the first time into the regulations at Sec.  
250.198(e)(1)(xiv)(B) and adding a reference to this standard in Sec.  
250.1203(b)(2)(xvii).
38. API Manual of Petroleum Measurement Standards Chapter 20.5--
Recommended Practice for Application of Production Well Testing in 
Measurement and Allocation, First Edition, December 2017; Errata 1, 
August 2023
    This publication establishes a framework to conduct and apply 
production well testing for well rate determination in measurement and 
allocation. Production well testing addressed in this document refers 
to measurement of gas, oil, and water quantities from a single well 
during a specified length of time under controlled operational 
conditions. The intent of this document is to provide operators with a 
consistent and transparent approach for conducting, applying, and 
managing production well testing within an upstream measurement and 
allocation system. It is not intended to prescribe a particular 
production well test method, or particular application of production 
well test data use in allocation. This document provides 
recommendations and guidelines for the application of production well 
testing in production measurement and allocation. The recommendations 
and guidelines apply to conducting a production well test, calculating 
production well test volumes and rates, and the application of 
production well test data for use in measurement and allocation. This 
includes production well testing preparation, initiation, measurement, 
validation, and volume and rate

[[Page 35313]]

calculations for separator, multiphase flow meter, and tank production 
well test systems. Additionally, this document addresses the proration 
of production well test results for use in allocation, the application 
of production well tests for validation and update of well flow models 
and virtual flow metering, and the adjustment of gas well continuous 
measurement results with production well test data. This document also 
provides recommendations and guidelines for the application of well 
flow modeling and virtual flow metering in production measurement and 
allocation. This document supersedes sections 1.7.2.2.2, 1.11.1, 
1.16.3.2, 1.16.3.3, 1.16.5.1, and Appendix J of API MPMS Chapter 20.1. 
BSEE is incorporating by reference this standard for the first time 
into the regulations at Sec.  250.198(e)(1)(xiv)(C) and adding a 
reference to this standard in Sec.  250.1204(b)(1).
39. API Recommended Practice 2A-WSD--Planning, Designing, and 
Constructing Fixed Offshore Platforms--Working Stress Design, Twenty-
second Edition, November 2014; Reaffirmed September 2020
    This RP is based on global industry best practices and serves as a 
guide for those who are concerned with the design and construction of 
new fixed offshore platforms and for the relocation of existing 
platforms used for the drilling, development, production, and storage 
of hydrocarbons in offshore areas. Specific guidance for hurricane 
conditions in U.S. offshore areas, previously provided in API RP 2A-
WSD, Twenty First Edition, Section 2, is now provided in API RP 2MET. 
Specific guidance for earthquake loading in U.S. offshore areas, 
previously provided in the API RP 2A-WSD, Twenty First Edition, Section 
2, is now provided in API 2EQ. Specific guidance for soil and 
foundation considerations in offshore areas, previously provided in API 
RP 2A-WSD, Twenty First Edition, Section 6, is now provided in API RP 
2GEO. Specific guidance for the evaluation of structural damage, above 
and below water structural inspection, fitness-for-purpose assessment, 
risk reduction and mitigation planning, plus the process of 
decommissioning has been removed and is now provided in API RP 2SIM. 
Specific guidance for fire and blast loading, previously provided for 
in the API RP 2A-WSD, Twenty First Edition, Section 18, is now provided 
for in API 2FB. The Twenty Second Edition was reaffirmed in 2020. This 
document is currently incorporated by reference in Sec.  
250.198(e)(57). BSEE is updating the incorporation by reference from 
the 2000 Twenty First Edition to the 2014 Twenty Second Edition, 
acknowledging the 2020 reaffirmation, renumbering the regulatory 
citation to Sec.  250.198(e)(2)(i)(A), updating the references to this 
standard in the existing regulations at Sec. Sec.  250.901(a)(4) and 
(d)(3), 250.908(a), and 250.920(f).
40. API Recommended Practice 2FPS--Planning, Designing, and 
Constructing Floating Production Systems, Second Edition, October 2011; 
Reaffirmed September 2020
    This document provides requirements and guidance for the structural 
design and/or assessment of floating offshore platforms used by the 
petroleum and natural gas industries to support the following 
functions: production, storage and/or offloading, and drilling. The 
Second Edition made changes to bring the document into conformance with 
more recent practice, namely adding as normative references five API 
documents (API Recommended Practice 2A-WSD, API Bulletin 2INT-MET, API 
Recommended Practice 2SK, API Recommended Practice 14J, 75L) and four 
ISO documents (13702, 19900-2002, 19901-1, 19902-2007). This document 
is currently incorporated by reference in Sec.  250.198(e)(59). BSEE is 
updating the incorporation by reference from the 2001 First Edition to 
the 2011 Second Edition, renumbering the regulatory citation to Sec.  
250.198(e)(2)(i)(D), and updating the reference of this standard in the 
existing regulations at Sec.  250.901(a)(5) and (d)(15).
41. API Recommended Practice 2FSIM--Floating Systems Integrity 
Management, First Edition, September 2019
    This RP provides guidance for floating system integrity management 
of floating production systems, which include tension leg platforms, 
used by the petroleum and natural gas industries to support drilling, 
production, storage, and/or offloading operations. Floating production 
systems described in this document are governed by local regulatory 
requirements and recognized classification society (RCS) rules, if 
classed. No specific regulatory compliance or RCS requirements are 
restated in the document. The requirements of this document do not 
apply to mobile offshore drilling units or to mobile offshore units 
used in support of construction operations. This document does not 
address dynamic positioning, moorings, or risers. BSEE is incorporating 
by reference for the first time API RP 2FSIM into the regulations at 
Sec.  250.198(e)(2)(i)(E) and adding a reference to this standard in 
Sec.  250.901(a)(22) and (d)(21).
42. ANSI/API Recommended Practice 2GEO--Geotechnical and Foundation 
Design Considerations; First Edition, April 2011, Addendum 1, October 
2014; Reaffirmed, January 2021
    This document contains requirements and recommendations for those 
aspects of geoscience and foundation engineering that are applicable to 
a broad range of offshore structures, rather than to a particular 
structure type. Such aspects are site characterization, soil and rock 
characterization, design and installation of foundations supported by 
the seabed (shallow foundations), identification of hazards, design of 
pile foundations, and soil-structure interaction for risers, flowlines, 
and auxiliary subsea structures. Aspects of soil mechanics and 
foundation engineering are not addressed by the document. BSEE is 
incorporating by reference for the first time API RP 2GEO, including 
all addenda and amendments through the January 2021 reaffirmation, into 
the regulations at Sec.  250.198(e)(2)(i)(F) and adding a reference to 
this standard in Sec.  250.901(a)(23) and (d)(22).
43. ANSI/API Recommended Practice 2MET--Derivation of Metocean Design 
and Operating Conditions; Second Edition, January 2021
    This standard gives requirements for the determination and use of 
meteorological and oceanographic (metocean) conditions for the design, 
construction, and operation of offshore structures of all types used in 
the petroleum, natural gas, and renewable energy industries. The 
requirements are divided into two broad types: those that relate to the 
determination of environmental conditions in general, together with the 
metocean parameters that are required to adequately describe them; and 
those that relate to the characterization and use of metocean 
parameters for the design, construction, or operation of offshore 
structures. BSEE is incorporating by reference for the first time API 
RP 2MET into the regulations at Sec.  250.198(e)(2)(i)(H) and adding a 
reference to this standard in Sec.  250.901(a)(24) and (d)(23).
44. API Recommended Practice 2MIM--Mooring Integrity Management; First 
Edition, September 2019
    This RP provides guidance for the integrity management of mooring 
systems connected to a permanent floating production system used for 
the drilling, development, production, and/or storage of hydrocarbons 
in offshore

[[Page 35314]]

areas. The scope of this RP extends from the anchor to the connection 
to the floating unit (e.g., chain stopper) and includes components 
critical to the mooring system (e.g., turret bearings, fairleads, chain 
stoppers, anchors, suction piles). BSEE is incorporating by reference 
for the first time API RP 2MIM into the regulations at Sec.  
250.198(e)(2)(i)(I) and adding a reference to this standard in Sec.  
250.901(a)(25) and (d)(25).
45. API Recommended Practice 2RIM--Integrity Management of Risers From 
Floating Production Systems; First Edition, September 2019
    This RP provides guidance for the integrity management of risers 
connected to a permanent floating production system used for the 
drilling, development, production, and storage of hydrocarbons in 
offshore areas. A riser is typically part of a larger subsea system 
extending from a wellhead, tree, manifold, template, or other structure 
on the seabed, to a boarding valve or pig trap on the host platform's 
topsides. This document addresses the integrity management of the 
dynamic portion of the riser system. For the purposes of this document, 
a riser has a top boundary that is somewhere at or above the point 
where it transfers load to the platform structure, and it has a lower 
boundary where it transfers load into a foundation, which could be a 
wellhead, pipeline, or subsea structure. For a top-tensioned riser, the 
top boundary will typically be the tensioner system hang-off point, and 
the bottom boundary will be the wellhead. For a steel catenary riser 
(SCR), the top boundary will typically be the stress joint or flexible 
joint. Unusual configurations, such as pull-tube steel catenary risers, 
merit special consideration. The top boundaries of a flexible or hybrid 
riser are typically a flanged connection to the riser end fitting at 
the top of an I-tube or J-tube, and a bend stiffener at the bottom of 
an I-tube or J-tube. The integrity management of the structural support 
for a riser on the host platform is in the scope of API RP 2FSIM, 
although some hybrid configurations, such as pull tubes, can require 
overlapping riser and structural integrity management. For risers 
structurally connected to the platform below the topsides, hull piping 
can be structurally clamped to the hull up to a boarding valve or pig 
launcher at the topsides. BSEE is incorporating by reference the First 
Edition of API RP 2RIM for the first time into the regulations at Sec.  
250.198(e)(2)(i)(L) and adding a reference to this standard in Sec.  
250.901(a)(26) and (d)(26).
46. API Recommended Practice 2SIM--Structural Integrity Management of 
Fixed Offshore Structures, First Edition, November 2014; Reaffirmed 
September 2020
    This RP provides guidance for the structural integrity management 
of existing fixed offshore structures used for the drilling, 
development, production, and storage of hydrocarbons in offshore areas. 
However, the general principles of SIM apply to any structure. Specific 
guidance is provided for the evaluation of structural damage, above- 
and below-water structural inspection, fitness-for-purpose assessment, 
risk reduction, mitigation planning, and the process of 
decommissioning. This RP incorporates and expands on the 
recommendations of Section 14, ``Surveys'' and Section 17, ``Assessment 
of Existing Platforms'' as previously provided in API RP 2A-WSD, Twenty 
First Edition. See Annex A for additional information and guidelines on 
the provisions stated in the numbered sections of this document. The 
structural integrity management process provided in this RP is 
applicable to existing platforms installed at any location worldwide. 
However, the RP provides specific met-ocean criteria, which are only 
applicable for use in fitness-for-purpose assessments of platforms 
located in the U.S. Gulf of America and off the U.S. West Coast. For 
guidelines, RPs, and other requirements relating to planning, 
designing, and constructing new fixed offshore platforms, including 
reuse and change-in-use of existing platforms, reference should be made 
to the latest edition of API RP 2A-WSD. For guidelines, RPs, and other 
requirements relating to planning, designing, and constructing new 
offshore floating production systems, including reuse and change-in-use 
of existing floating production systems, reference should be made to 
the latest edition of API RP 2FPS. BSEE is incorporating by reference 
the First Edition of API RP 2SIM for the first time into the 
regulations at Sec.  250.198(e)(2)(i)(M) and adding a reference to this 
standard in Sec. Sec.  250.901(a)(27) and (d)(24); 250.919(b)(2) and 
(d); and 250.920.
47. API Recommended Practice 2SM--Design, Manufacture, Installation, 
and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second 
Edition, July 2014; Reaffirmation, September 2020
    This document applies to synthetic fiber ropes used in the form of 
taut leg or catenary moorings for both permanent and temporary offshore 
installations. This document covers the following aspects of synthetic 
fiber ropes: design and analysis considerations of mooring system, 
design criteria for mooring components, rope design, rope specification 
and testing, rope manufacture and quality assurance, rope handling and 
installation, and in-service inspection and maintenance. Application of 
this document to other offshore mooring applications is at the 
discretion of the designer and operator. This document is not intended 
to cover other marine applications of synthetic fiber ropes such as 
tanker mooring at piers and harbors, towing hawsers, mooring hawsers at 
single-point moorings, and tension leg platform tethers. Additionally, 
very little test data are available for large synthetic fiber ropes 
permanently deployed around fairleads and thus this document is limited 
to fiber ropes which span freely between end terminations. The Second 
Edition made changes to include applications to floating production, 
storage, and offloading units, floating storage units, mobile offshore 
drilling units, spar platforms, catenary anchor leg mooring buoys, and 
mobile offshore units. Further, the Second Edition added provisions for 
rope design, specification, and testing. The Second Edition was 
reaffirmed in September 2020. This document is currently incorporated 
by reference in Sec.  250.198(e)(64). BSEE is updating the 
incorporation by reference from the 2001 First Edition to the 2014 
Second Edition, acknowledging the 2020 reaffirmation, renumbering the 
regulatory citation to Sec.  250.198(e)(2)(i)(O), and updating the 
reference of this standard in the existing regulations at Sec. Sec.  
250.800(c) and 250.901(a)(9) and (d)(19).
48. API Recommended Practice 2T--Planning, Designing, and Constructing 
Tension Leg Platforms, Third Edition, July 2010; Reaffirmed June 2015
    This RP is a guide to the designer in organizing an efficient 
approach to the design of a tension leg platform. Emphasis is placed on 
participation of all engineering disciplines during each stage of 
planning, development, design, construction, installation, and 
inspection. The Third Edition made changes to include normative 
references, seafloor characteristics, materials-welding-corrosion 
protection, design criteria, safety categories, design load cases, 
vortex-induced vibrations, system and frequency domain modeling, 
material considerations, and design loads. The Third Edition was 
reaffirmed in June 2015. This document is

[[Page 35315]]

currently incorporated by reference in Sec.  250.198(e)(65). BSEE is 
updating the incorporation by reference from the 1997 Second Edition to 
the 2010 Third Edition, acknowledging the 2015 reaffirmation, 
renumbering the regulatory citation to Sec.  250.198(e)(2)(i)(P), and 
updating the reference of this standard in the existing regulations at 
Sec.  250.901(a)(10) and (d)(18).
49. API Specification 6A--Specification for Wellhead and Christmas Tree 
Equipment, Twenty-First Edition, November 2018, Errata 1 April 2019, 
Errata 2 June 2020, Errata 3 September 2020, Errata 4 September 2021, 
Addendum 1 July 2020, Addendum 2, June 2021, Addendum 3, August 2022
    This specification provides requirements and gives recommendations 
for the performance, dimensional and functional interchangeability, 
design, materials, testing, inspection, welding, marking, handling, 
storing, shipment, and purchasing of wellhead and tree equipment for 
use in the petroleum and natural gas industries. This specification 
establishes requirements for four product specification levels (PSLs), 
namely, PSL 1, PSL 2, PSL 3, and PSL 4, as well as a supplemental 
designation of PSL 3G that define different levels of technical quality 
requirements. The subject matter of Annexes B, C, D, E, F, G, H, I, J, 
K, L, and M has been arranged in a way that minimizes the impact of 
changes on users of this document. The Twenty-First Edition made 
changes concerning normative references, performance, design, 
materials, welding, bolting, pressure boundaries, and quality control. 
This edition includes Errata through 2021 and Addenda through 2022, and 
a title change from ANSI/API Spec. 6A to API Specification 6A. BSEE is 
updating the incorporation by reference from the 2010 Twentieth Edition 
to the 2018 Twenty First Edition, acknowledging the various Errata and 
Addenda made through 2022, renumbering the regulatory citationand 
updating the reference to this standard in the new Sec.  
250.198(e)(2)(i)(Q) to reflect the new name of the standard, and 
updating the reference to this standard in the existing regulations at 
Sec. Sec.  250.518(c), 250.619(c), 250.730(a)(2)(i), 250.802(a), 
250.803(a), 250.833, 250.873(b), 250.874(g)(2), and 250.1002(b)(1) and 
(2).
50. API Standard 6AV1--Validation of Safety and Shutdown Valves for 
Sandy Service, Third Edition, July 2018
    This Standard establishes sandy service design validation for 
valves to meet Class II and Class III, but not for Class I safety 
valves or actuators. There are three service classes, Class I, Class 
II, and Class III, for API Specification 6A surface safety valves, 
underwater safety valves, or boarding shutdown valves. Class II is 
intended to validate the valve bore sealing mechanism if substances, 
such as sand, can be expected to cause safety or shutdown valve 
failure. Class III adds requirements and validation of the bonnet 
assembly inclusive of stem seals. The Third Edition modified the Second 
Edition sufficient to change the document designation from 
Specification to Standard. Therefore, the title of this standard 
changed from API Spec. 6AV1 to API Standard 6AV1. Other changes between 
editions included the terms and conditions, equipment specifications, 
validation requirements, seal tests, and procedural requirements. This 
document is currently incorporated by reference in Sec.  
250.198(e)(83). BSEE is updating the incorporation by reference from 
the 2013 Second Edition to the 2018 Third Edition, renumbering the 
regulatory citation and updating the reference to this standard in the 
new Sec.  250.198(e)(2)(i)(R) to reflect the new name of the standard, 
and updating the reference to this standard in existing regulations at 
Sec. Sec.  250.802(a) and (c), 250.833, 250.873(b), and 250.874(g)(2).
51. API Specification 6D--Specification for Valves, Twenty-Fifth 
Edition November 2021, Errata 1 December 2021, Errata 2 April 2022, 
Addendum 1 April 2023
    This specification defines the requirements for the design, 
manufacturing, assembly, testing, and documentation of ball, check, 
gate, and plug valves for application in pipeline and piping systems 
for the petroleum and natural gas industries. If product is supplied 
bearing the API Monogram and manufactured at a facility licensed by 
API, the requirements of Annex A apply. Annexes B, C, D, E, F, G, H, I, 
J, K, L, M, N, and O are annexes that are used in the order listed. 
This specification is not applicable to subsea pipeline valves, which 
are covered by a separate specification, API 6DSS. This specification 
is not applicable to valves for pressure ratings exceeding Class 2500. 
The Twenty Fifth Edition made changes concerning configuration, 
performance, pressure and temperature ratings, design, impact tests, 
welding, and inspections. The title of this standard also changed from 
ANSI/API Spec. 6D to API Specification 6D. The Twenty Fifth Edition 
includes amendments and errata made through April 2022. This document 
is currently incorporated by reference in Sec.  250.198(e)(85). BSEE is 
updating the incorporation by reference from the 2008 Twenty Third 
Edition to the 2021 Twenty Fifth Edition, acknowledging the amendments 
and errata made through 2022, renumbering the regulatory citation and 
updating the reference to this standard in the new Sec.  
250.198(e)(2)(i)(T) to reflect the new name of the standard, and 
updating the reference of this standard in existing regulations at 
Sec.  250.1002(b)(1).
52. API Specification 17D--Specification for Subsea Wellhead and Tree 
Equipment, Third Edition, October 2021, Errata 1, December 2021, 
Addendum 1, December 2022
    This document provides specifications for subsea wellheads, mudline 
wellheads, drill-through mudline wellheads, and both vertical and 
horizontal subsea trees. It specifies the associated tooling necessary 
to handle, test, and install the equipment. It also specifies the areas 
of design, material, welding, quality control, including factory 
acceptance testing, marking, storing, and shipping for individual 
equipment, subassemblies, and subsea tree assemblies. The Third Edition 
made changes concerning configuration, performance, and several design 
equations, and includes a 2021 Errata and 2022 Addendum. The title of 
this standard is also corrected from ANSI/API Specification 17D to API 
Specification 17D. This document is currently incorporated by reference 
in Sec.  250.198(e)(91). BSEE is updating the incorporation by 
reference from the 2011 Second Edition to the 2021 Third Edition, 
acknowledging the 2021 Errata and 2022 Reaffirmation, updating the 
reference to this standard in Sec.  250.198(e)(2)(i)(HH) to reflect the 
corrected name of the standard, and updating the reference of this 
standard in the existing regulations at Sec. Sec.  250.518(c), 
250.619(c), 250.730(a)(2)(v).
53. API Specification 17J--Specification for Unbonded Flexible Pipe, 
Fourth Edition, May 2014, Errata 1 September 2016, Errata 2 May 2017, 
Addendum 1 October 2017, Reaffirmed March 2021
    This document defines the technical requirements for safe, 
dimensionally, and functionally interchangeable flexible pipes that are 
designed and manufactured to uniform standards and criteria. Minimum 
requirements are specified for the design, material selection, 
manufacture, testing, marking, and packaging of flexible pipes, with 
reference to existing codes and standards where applicable. API Spec

[[Page 35316]]

17J applies to unbonded flexible pipe assemblies, consisting of 
segments of flexible pipe body with end fittings attached to both ends. 
The applications addressed by API Spec 17J are sweet and sour service 
production, including export and injection applications. Production 
products include oil, gas, water, and injection chemicals. API Spec 17J 
applies to both static and dynamic flexible pipes used as flowlines, 
risers, and jumpers. The Fourth Edition made changes concerning 
normative references, design parameters, quality assurance 
requirements, and testing. The Fourth Edition includes 2016 and 2017 
errata, a 2017 addendum, and 2021 reaffirmation. The title of this 
standard has also changed from ANSI/API Spec. 17J to API Spec 17J. This 
document is currently incorporated by reference in Sec.  
250.198(e)(92). BSEE is updating the incorporation by reference from 
the 2008 Third Edition to the 2014 Fourth Edition, acknowledging the 
errata, addendum, and reaffirmation, renumbering the regulatory 
citation and updating the reference to this standard in the new Sec.  
250.198(e)(2)(i)(JJ) to reflect the new name of the standard, and 
updating the reference of this standard in the existing regulations at 
Sec. Sec.  250.852(e), 250.1002(b)(4), and 250.1007(a)(4)(i)(D).
54. API Specification 20E--Alloy and Carbon Steel Bolting for Use in 
the Petroleum and Natural Gas Industries, Second Edition, February 
2017, Addendum 1 September 2018, Addendum 2 March 2019, Errata 1 
November 2021, Errata 2 May 2022
    This document specifies requirements for the qualification, 
production, and documentation of alloy and carbon steel bolting used in 
the petroleum and natural gas industries. It applies when referenced by 
an applicable API equipment standard or otherwise specified as a 
requirement for compliance. An annex for supplemental requirements that 
may be invoked by the purchaser is included. This document establishes 
requirements for three bolting specification levels (BSL). These three 
BSL designations define different levels of technical, quality, and 
qualification requirements, BSL-1, BSL-2, and BSL-3. The BSLs are 
numbered according to the increasing levels of severe consequences if a 
bolt fails. Hence, the increasing BSL levels reflect increasing 
technical, quality, and qualification criteria appropriate to reducing 
the risk of failure. This document covers the following finished 
product forms, processes, and sizes: machined studs; machined bolts, 
screws, and nuts; cold formed bolts, screws, and nuts (BSL-1 only); hot 
formed bolts and screws <1.5 in. (38.1 mm) nominal diameter; hot formed 
bolts and screws > or = 1.5 in. (38.1 mm) nominal diameter; roll 
threaded studs, bolts, and screws <1.5 in. (38.1 mm) diameter; roll 
threaded studs, bolts, and screws > or = 1.5 in. (38.1 mm) diameter; 
hot formed nuts <1.5 in. (38.1 mm) nominal diameter; and hot formed 
nuts > or = 1.5 in. (38.1 mm) nominal diameter. The Fourth Edition 
includes addenda and errata through May 2022. BSEE is incorporating by 
reference API Spec 20E, including the addenda and errata made through 
2022, for the first time into the regulations at Sec.  
250.198(e)(2)(i)(KK) and adding a reference to this standard in Sec.  
250.730(a)(2)(vi).
55. API Specification 20F--Corrosion-Resistant Bolting for Use in the 
Petroleum and Natural Gas Industries, Second Edition, May 2018, API 
Monogram Program Effective Date: November 1, 2018, Errata 1 October 
2020, Addendum 1 November 2021
    This document specifies requirements for the qualification, 
production, and documentation of corrosion-resistant bolting used in 
the petroleum and natural gas industries. It applies when referenced by 
an applicable API equipment standard or otherwise specified as a 
requirement for compliance. This document establishes requirements for 
two bolting specification levels (BSL). These two BSL designations 
define different levels of technical, quality, and qualification 
requirements: BSL-2 and BSL-3. The BSLs are numbered in increasing 
levels of requirements in order to reflect increasing technical, 
quality, and qualification criteria. BSL-2 and BSL-3 are intended to be 
comparable to BSL-2 and BSL-3 as found in API Spec 20E. BSL-1 is 
omitted from this standard. This document covers the following product 
forms, processes, and sizes: machined studs; machined bolts, screws, 
and nuts; cold-formed bolts, screws, and nuts with cut or cold-formed 
threads; hot-formed bolts and screws <1.5 in. (38.1 mm) nominal 
diameter; hot-formed bolts and screws >=1.5 in. (38.1 mm) nominal 
diameter; roll threaded studs, bolts, and screws <1.5 in. (38.1 mm) 
diameter; roll threaded studs, bolts, and screws >=1.5 in. (38.1 mm) 
diameter; hot-formed nuts <1.5 in. (38.1 mm) nominal diameter; and hot-
formed nuts >=1.5 in. (38.1 mm) nominal diameter. The Fourth Edition 
includes addenda and errata through November 2021. BSEE is 
incorporating by reference the Second Edition of API Spec 20F, 
including the addenda and errata made through 2021, for the first time 
into the regulations at Sec.  250.198(e)(2)(i)(LL) and adding a 
reference to this standard in Sec.  250.730(a)(2)(vii).
56. API Standard 53--Well Control Equipment Systems for Drilling Wells, 
Fifth Edition, December 2018
    This document provides the requirements for the installation and 
testing of blowout prevention equipment systems on land and marine 
drilling rigs (barge, platform, bottom-supported, and floating). Well 
control equipment systems are designed with components that provide 
wellbore pressure control in support of well operations. The primary 
functions of these systems are to confine well fluids to the wellbore, 
provide means to add fluid to the wellbore, and allow controlled 
volumes to be removed from the wellbore. The Fifth Edition made changes 
concerning sealing components, pressure measurement, control systems, 
testing, and examples. This document is currently incorporated by 
reference in Sec.  250.198(e)(94). BSEE is updating the incorporation 
by reference from the 2012 Fourth Edition to the 2018 Fifth Edition, 
renumbering the regulatory citation to Sec.  250.198(e)(2)(i)(MM), and 
updating the reference of this standard in existing regulations at 
Sec. Sec.  250.730(a), 250.734(a)(4), 250.735(a), 250.736(d)(1), 
250.737(d)(1), and 250.739(a).
57. API Standard 2555--Method for Liquid Calibration of Tanks, First 
Edition, September 1966; Reaffirmed May 2014
    This standard describes the procedure for calibrating tanks, or 
portions of tanks, that are larger than a barrel or drum by introducing 
or withdrawing measured quantities of liquid. This update reflects a 
May 2014 reaffirmation of the standard without substantive change. This 
document is currently incorporated by reference in Sec.  
250.198(e)(97). BSEE is updating the incorporation by reference by 
acknowledging the 2014 and 2023 reaffirmations, renumbering the 
regulatory citation to Sec.  250.198(e)(2)(iii)(A), and adding an 
express reference to this standard in Sec.  250.1202(a)(2)(xlii) to 
clarify the longstanding use of this document already incorporated in 
the current regulations.

[[Page 35317]]

58. API Recommended Practice 2556--Recommended Practice for Correcting 
Gauge Tables for Incrustation, Second Edition, August 1993; Reaffirmed 
November 2023
    Incrustation is defined for the purpose of this RP as any material 
that adheres to the internal vertical sidewall surfaces of a tank when 
the tank is otherwise empty. Incrustation has the same effect on tank 
capacity as deadwood (anything that displaces liquid inside a tank) and 
should be treated as such as long as it remains in the tank. The 
problem of deducting the volume of liquid displaced by incrustation is 
complicated by two of incrustation's basic and typical characteristics. 
First, incrustation is difficult to measure, and second, its thickness 
is usually variable. Some oils present no incrustation problem, but 
many others do, usually on a field-wide basis. The error in measurement 
from any one tank may be slight, but the accumulated error from an 
entire field or from any one tank over a period of time could be 
substantial. The error always has the effect of indicating too large a 
tank capacity; therefore, a receiving carrier cannot be expected to 
continually absorb the effect of these errors. The method selected to 
correct the error should depend upon the desired approach to accuracy 
of measurement.
    The tables given in this RP (see Section 4) show the percent of 
error of measurement caused by varying thicknesses of uniform 
incrustation in tanks of various sizes. These tables may be used as a 
guide by the tank owner and the carrier to negotiate an allowance for 
incrustation. If it is established that incrustation is causing a 
substantial loss to a carrier or to any other receiver using affected 
tank gauges as the basis for custody transfer measurement, it is the 
responsibility of the tank owner to provide a tank that will permit an 
accurate measurement or to agree to a reasonable adjustment. This 
update reflects a November 2013 and a November 2023 reaffirmation of 
the standard without substantive change. This document is currently 
incorporated by reference in Sec.  250.198(e)(80). BSEE is updating the 
incorporation by reference by acknowledging the 2013 and 2023 
reaffirmations, renumbering the regulatory citation to Sec.  
250.198(e)(2)(iii)(B), and updated the reference to this standard in 
Sec.  250.1202(a)(2)(xliii).
59. American Society of Mechanical Engineers (ASME) Boiler and Pressure 
Vessel Code, Section VIII--Rules for Construction of Pressure Vessels; 
Division 1, 2021 Edition, July 1, 2021
    This code gives detailed requirements for the design, fabrication, 
testing, inspection, and certification of both fired and unfired 
pressure vessels. It specifically refers to those pressure vessels that 
operate at pressures, either internal or external, that exceed 15 psig. 
Section VIII is divided into 3 sections, each of which covers different 
vessel specifications. Division 1 addresses the requirements for 
design, fabrication, inspection, testing, and certification. Division 1 
contains appendices, some mandatory and some non-mandatory, that detail 
supplementary design criteria, nondestructive examination techniques, 
and inspection acceptance standards for pressure vessels. Division 1 
also contains rules that apply to the use of the single ASME 
certification mark with the U, UM, and UV designators. The 2021 Edition 
made changes to bring the document into conformance with more recent 
practice, namely overpressure protections, permitted pressure relief 
devices and methods, design criteria, low temperature operation, and 
materials considerations. BSEE is updating the incorporation by 
reference of ASME Boiler and Pressure Vessel Code, Section VIII, 
Division 1, at Sec.  250.198(f)(3)(i) from the 2017 Edition to the 2021 
Edition and updating the reference of this standard in existing 
regulations at Sec.  250.851(a)(1)(i) and (a)(3)(i).
60. ISO/IEC 17011:2017(E)--Conformity Assessment--Requirements for 
Accreditation Bodies Accrediting Conformity Assessment Bodies, Second 
Edition 2017-11
    This document specifies requirements for the competence, consistent 
operation, and impartiality of accreditation bodies assessing and 
accrediting conformity assessment bodies. In the context of this 
document, activities covered by accreditation include, but are not 
limited to, testing, calibration, inspection, certification of 
management systems, persons, products, processes and services, 
provision of proficiency testing, production of reference materials, 
validation, and verification. The Second Edition made changes to bring 
the document into conformance with more recent practice. The document 
was revised and reorganized and an Annex A on knowledge and skills for 
performing accreditation activities was added. BSEE is updating the 
incorporation by reference of ISO/IEC 17011 at Sec.  250.198(j)(1) from 
the 2004 First Edition to the 2017 Second Edition, renumbering the 
regulatory citation from Sec.  250.198(j)(1) to Sec.  250.198(k)(1), 
and updating the reference of this standard in existing regulations at 
Sec. Sec.  250.1900(a), 250.1903, 250.1904(d), and 250.1922.
61. GPA Midstream Standard 2198-16--Selection, Preparation, Validation, 
Care and Storage of Natural Gas and Natural Gas Liquids Reference 
Standard Blends; Adopted as a Standard 1998; Revised August 2016
    This standard covers the recommended procedures for selecting the 
proper Natural Gas and Natural Gas Liquids Reference Standards, 
preparing the standards for use, verifying the accuracy of composition 
as reported by the manufacturer, and the proper care and storage of 
those standards to ensure their integrity and longevity during use. 
This standard was revised in 2016. BSEE is incorporating by reference 
GPA standards into the regulations for the first time, including GPA 
Standard 2198-16 and its revision at Sec.  250.198(j)(1)). BSEE is also 
adding a reference to this standard in Sec.  250.1203(b)(2)(vii).
62. GPA Midstream Standard 2261-20--Analysis for Natural Gas and 
Similar Gaseous Mixtures by Gas Chromatography; Copyright 2019
    This standard provides the gas processing industry with a method 
for determining the chemical composition of natural gas and similar 
gaseous mixtures using a Gas Chromatograph. The precision statements 
contained in this standard are based on the statistical analysis of 
round-robin laboratory data obtained by GPA Section B. This standard 
was developed by the cooperative efforts of many individuals from 
industry under the sponsorship of GPA Section B, Analysis and Test 
Methods. BSEE is incorporating by reference for the first time GPA 
2261-20, as revised in 2020, into the regulations at Sec.  
250.198(j)(2)) and adding a reference to this standard in Sec.  
250.1203(b)(2)(viii).
63. GPA Midstream Standard 2286-14--Method for the Extended Analysis of 
Natural Gas and Similar Gaseous Mixtures by Temperature Program Gas 
Chromatography; Revised 2014
    This standard covers the determination of the chemical composition 
of natural gas streams where precise physical property data of the 
hexanes and heavier fraction is

[[Page 35318]]

required. This procedure is applicable for gaseous hydrocarbon mixes, 
which may contain nitrogen and carbon dioxide and/or hydrocarbon 
complexes C1 through C14 that fall within the ranges specified therein. 
This standard had previously seen only minor revisions since its 
adoption as a technical standard in 1986. The GPA revised portions of 
the standard that had become obsolete and that did not reflect current 
industry practices. In addition, the example calculations that use GPA 
2145 to reflect the 2009 revision of GPA 2145 and all calculations 
related to those presented in GPA 2172 were removed and referenced to 
GPA 2172. The most significant changes to the standard involve updates 
to the method to maintain consistency with current technologies. BSEE 
is incorporating by reference for the first time GPA 2286-14, as 
revised in 2014, into its regulations at Sec.  250.198(j)(3), and 
adding a reference to this standard in Sec.  250.1203(b)(2)(ix).
Availability of Incorporated Documents for Public Viewing
    When a copyrighted technical industry standard is incorporated by 
reference into the regulations, BSEE must observe and protect that 
copyright. BSEE provides members of the public with website addresses 
where these standards may be accessed for viewing--sometimes for free 
and sometimes for a fee. Typically, each SDO owns the standard's 
copyright and decides whether to charge a fee.
    The API provides free read-only online public access to about 160 
key industry standards, including a broad range of technical standards. 
All API standards that are safety-related and that are incorporated 
into Federal regulations are available to the public for free viewing 
online in the Incorporation by Reference Reading Room at <a href="https://www.api.org/products-and-services/standards/ibr-reading-room">https://www.api.org/products-and-services/standards/ibr-reading-room</a> or for 
purchase on API's website at <a href="https://publications.api.org">https://publications.api.org</a> and <a href="https://www.api.org/products-and-services/standards/purchase">https://www.api.org/products-and-services/standards/purchase</a>, respectively. In 
addition to the free availability of these standards for viewing on 
API's website, hardcopies and printable versions are available for 
purchase from API. The API website address to purchase standards is: 
<a href="https://www.api.org/products-and-services/standards/purchase">https://www.api.org/products-and-services/standards/purchase</a>. We are 
also incorporating standards from other SDOs, including the AGA, GPA, 
ASME, and ISO. To purchase the copyrighted documents, the website 
addresses and telephone numbers are: for AGA Documents, contact Accuris 
at <a href="https://store.accuristech.com/">https://store.accuristech.com/</a>; for ASME Documents, contact the 
organization at 1-800-843-2763 or their website 
<a href="/cdn-cgi/l/email-protection#9deaeaeab3fee8eee9f2f0f8effefceff8ddfceef0f8b3f2effa"><span class="__cf_email__" data-cfemail="cbbcbcbce5a8beb8bfa4a6aeb9a8aab9ae8baab8a6aee5a4b9ac">[email&#160;protected]</span></a>; and for GPA Documents, contact the 
organization at 1-918-493-3872 or their website <a href="http://www.gpamidstream.org">www.gpamidstream.org</a>; 
for ISO documents, contact the organization at +41 22 749 01 11 or 
their website at <a href="https://www.iso.org/standards.html">https://www.iso.org/standards.html</a>.
    For the convenience of the viewing public who may not wish to 
purchase or view the incorporated documents online, the documents may 
be inspected at BSEE's offices at 1919 Smith Street, Suite 14042, 
Houston, Texas 77002 (phone: 1-844-259-4779), 45600 Woodland Road, 
Sterling, Virginia 20166 (email: <a href="/cdn-cgi/l/email-protection#4634232135062435232368212930"><span class="__cf_email__" data-cfemail="fe8c9b998dbe9c8d9b9bd0999188">[email&#160;protected]</span></a>), by appointment only. 
An appointment is required to ensure personnel are available to 
accommodate requests to inspect the documents at BSEE offices and to 
account for competing agency obligations or concerns, including those 
related to public health and natural disasters. Additional information 
about where these documents can be inspected or purchased can be found 
at Sec.  250.198, Documents incorporated by reference, or by sending a 
request by email to <a href="/cdn-cgi/l/email-protection#bcced9dbcffcdecfd9d992dbd3ca"><span class="__cf_email__" data-cfemail="6b190e0c182b09180e0e450c041d">[email&#160;protected]</span></a>. The other standards that appear in 
the amendatory text of this document were previously approved for the 
sections in which they appear.

II. Discussion of Public Comments on the Proposed Rule

    In response to the proposed rule, BSEE received 4 sets of submitted 
comments containing general statements and specific comments on the 
standards included in the proposed rule. Comments included submittals 
from 1 company, 2 industry organizations (joint comments), and 2 
anonymous individuals. All relevant comments are posted at the Federal 
eRulemaking portal: <a href="https://www.regulations.gov">https://www.regulations.gov</a>. To access the comments 
at that website, enter BSEE-2022-0005 in the Search box.
    BSEE received multiple comments expressing general support for the 
proposed rule, including those that endorsed the Bureau's approach for 
undertaking this rulemaking to ensure that references to standards 
incorporated into regulation are kept current and, therefore, recognize 
the current changes in technology, materials, and safety improvements 
in the industry. While these commenters voiced support broadly for the 
rulemaking, they also disagreed with incorporating certain standards 
included in the proposed rule and provided suggested revisions. BSEE 
reviewed all comments submitted, and this section of the preamble 
contains brief summaries of the relevant comments, as well as BSEE's 
responses.

General Comments

    Summary of comments related to compliance with previous editions of 
standards: A few commenters noted that standards are developed based on 
the current industry best practices and in most cases, represent 
forward-looking requirements for designs, equipment, and engineering 
systems. When incorporated by reference, standards provide requirements 
for engineering systems that will be designed after the date of 
incorporation (effective date). For infrastructure and equipment that 
was designed, fabricated, installed, or operated on the OCS prior to 
the effective date of new standard incorporation, BSEE should clarify 
that compliant operation is defined as operating the equipment with 
technical specifications meeting the requirements specified in the 
original basis of design and applicable standards editions used when 
design was performed.F
    Response: BSEE does not agree with the commenters' recommendation. 
BSEE has addressed this comment numerous times in other rulemakings 
(e.g., 83 FR 49216, 49229). It is not necessary to specify which of the 
updated standards, or which provisions in those standards, apply 
prospectively. By incorporating updated standards into this final rule, 
BSEE generally does not intend to require, and the standards themselves 
do not envision, replacement of existing facilities or equipment (that 
meet the applicable requirements that were in effect when the 
facilities or equipment were installed). The updated standards will 
apply to all BSEE approvals of facilities and equipment prospectively 
(as of the effective date of the final rule). The language of the 
regulations and the referenced standards will result in their 
application to new and existing facilities or equipment and require 
certain future actions (e.g., equipment inspection, testing, removal, 
repair, or replacement) after this rule's effective date. After the 
effective date, operators must ensure that all existing facilities, 
equipment, and practices comply with those applicable requirements. If 
compliance issues arise in the future, BSEE will evaluate those issues 
on a case-by-case basis and where appropriate, may approve a request to 
use alternate procedures or equipment based on the circumstances or 
issues associated with each standard.
    Summary of comments related to annual Incorporation by Reference 
(IBR)

[[Page 35319]]

rulemakings: A few commenters encouraged BSEE to ensure its regulations 
keep up with the most updated standards by actively publishing IBR rule 
notices on an annual basis to reflect the most recent technology and 
safety criteria.
    Response: BSEE agrees and shares the commenters' views as to the 
value and importance of standards incorporated by reference into the 
regulations. However, the timing associated with finalizing a rule is 
dependent on many factors unique to each rulemaking, such as the number 
of standards that may be included in a particular rulemaking or the 
number of issues that must be addressed before finalizing a rule. BSEE 
strives to issue IBR rulemakings on a continuous basis.
    Summary of comments related to normative references and secondary 
standards: A few commenters expressed dissatisfaction with BSEE's 
procedures for addressing secondary standards, which includes 
incorporating those secondary standards into the regulations. Industry 
standards often have normative references that include requirements to 
comply with other standards (referred to as secondary standards). Those 
requirements usually reference a specific version or edition of the 
secondary standard. BSEE should be aware of how compliance will be 
administered for standards with normative references where secondary 
standards with different editions are also incorporated by reference. 
To assure clarity of regulatory requirements, and to avoid edition 
conflicts, industry recommends that BSEE eliminates direct 
incorporation of secondary standards, when the primary standard is 
incorporated.
    Response: BSEE understands the commenters' concerns. However, one 
of BSEE's core responsibilities includes enforcement of applicable 
laws, regulations, or other requirements that the Bureau imposes. As 
previously mentioned, the legal effect of incorporation by reference is 
that the incorporated standards become regulatory requirements. This 
incorporated material, like any other regulation, has the force and 
effect of law. Operators, lessees, and other regulated parties must 
comply with the documents incorporated by reference in the regulations. 
BSEE relies heavily on its regulations to guide its enforcement 
actions. Furthermore, incorporation by reference of a document or 
publication is limited to the version of the document or publication 
cited in the regulations, as required by the OFR under 1 CFR part 51. 
These factors weigh heavily into BSEE's overarching approach to 
incorporating by reference secondary standards into the regulations. 
BSEE did not make a change to the final rule in response to this 
comment and will not change its policy for incorporating by reference 
secondary standards into the regulations.
    Summary of comment related to BSEE engagement in the standards 
development process: A commenter suggested that BSEE should ensure that 
its personnel are active and directly engaged in the open and 
transparent standard development process. However, BSEE should also 
establish internal processes to ensure that the engaged BSEE experts 
are sharing their knowledge of the standards with other BSEE personnel 
to ensure the broad internal understanding of both the content and the 
status of the standards and how they should be applied to the OCS.
    Response: BSEE personnel are involved in the standards development 
process, and those individuals do, in fact, share information and 
knowledge with other BSEE staff (including inspectors and those 
responsible for permit approvals) about the content and status of 
recently published standards or standards under development.
Measurement-Related Comments
    Summary of comments related to additional reaffirmations of 
standards: A few commenters noted that several oil and gas measurement-
related standards referenced in the proposed rule have had additional 
reaffirmations made by the API. These standards include API MPMS 
Chapter 3.1A, API MPMS Chapter 4, Section 1, API MPMS Chapter 4.5, API 
MPMS Chapter 4, Section 7, API MPMS Chapter 4, Section 9 Part 2, API 
MPMS Chapter 5, sections 3, 4, and 5, API Standard 2552, API Standard 
2555, and API RP 2556.
    Response: BSEE agrees with the commenters recommended 
clarifications. A reaffirmed standard denotes an action taken by the 
API standards committee, normally within a 5-year timeframe, confirming 
that the information contained within the standard is still applicable 
and requires no change at this time. Additionally, the edition number 
and date of the standard does not change because of reaffirmation by 
the standards committee. Because a reaffirmation does not change any of 
the standard's provisions and does not provide any new substantive 
information BSEE previously made available during the public's review 
of the proposed rule, BSEE may make this type of change as part of the 
final rule. BSEE checked the most recent publications of all the 
standards the commenters cited as having additional reaffirmation dates 
and could only confirm that API RP 2556 had an additional reaffirmation 
date. None of the current publications in the other documents the 
commenters recommended updating contained the additional reaffirmation 
dates. In accordance 1 CFR 51.7(a)(2)(i), a publication is eligible for 
incorporation by reference if it is published data. The documents the 
commenters cited are, in fact, published. However, the publications 
cited by these commenters do not contain the reaffirmation dates that 
commenters had noted. Therefore, this final rule incorporates the new 
reaffirmation date of API RP 2556 only. If these standards do get 
published with additional reaffirmation dates, BSEE will consider 
updating its regulations at Sec.  250.198 as part of a future 
rulemaking to acknowledge the reaffirmations. In addition, as noted in 
the proposed rule, BSEE is removing API Standard 2552 from the 
regulations because the document provided best practices as of 1966; it 
is now outdated and not applicable with the measurement and calibration 
requirements presently used. Therefore, BSEE is not accepting the 
commenters' recommendation on this standard either.
    Summary of comments related to newer editions of or superseding 
standards: A few commenters recommended replacing certain standards 
referenced in the proposed rule with other standards that either 
supersede or update the edition of the standards referenced in the 
proposed rule. The standards the commenters recommended replacing 
include API MPMS Chapter 6.1, API MPMS Chapter 6, sections 6 and 7, API 
MPMS Chapter 12, Section 2, Part 4, API MPMS Chapter 14, Section 8, API 
MPMS Chapter 2, Section 2A, API MPMS Chapter 3, Section 1B, API MPMS 
Chapter 4, Section 6, API MPMS Ch. 20.3, API MPMS Chapter 21, Section 
1, API STD 6AV2, API Spec 11D1, ANSI/API Spec 14A, API RP 14F, API RP 
17H, API Spec 16A, API Spec 16C, API Spec 16D, API RP 65, API 510, API 
RP 90, and API Spec Q1.
    Response: BSEE appreciates the clarification provided through these 
comments. However, the Bureau did not accept the commenters' 
recommendation. BSEE did not propose these superseding or newer 
editions of standards as part of the proposed rule. Therefore, the 
public was not notified and given the opportunity to review and 
potentially provide comments on these standards during the public 
comment period. BSEE will review these

[[Page 35320]]

standards and consider including them in future rulemakings.
    Summary of comments related to API MPMS Chapter 9.4: A few 
commenters pointed out that BSEE should, in conjunction with its 
incorporation by reference of API MPMS Chapter 9.4, promote Bureau 
personnel (i.e., regulators and inspectors) awareness that the standard 
provides the option to use online density in lieu of using the density 
from a sample.
    Response: BSEE agrees with the commenters but did not make any 
changes in response to this comment. BSEE already has processes in 
place to ensure that its personnel are aware that the standard provides 
the option to use online density information. BSEE's Gulf of America 
Regional Office is responsible for approving the use of a continuous 
density measurement system at a facility measurement point (FMP). They 
are aware that API MPMS Chapter 9.4 provides the option to use online 
density in lieu of using the density from a sample. The approving 
official will consider it if the option is included as part of a 
request to use a continuous density measurement system. If the use of 
online density information is permitted, it will be documented in 
BSEE's measurement approval. The approval document will be shared with 
appropriate program staff at the BSEE District Office and with the 
Production Inspection Coordinator for use as part of a production 
inspection.
    Summary of comments related to API MPMS Chapter 12.2: In the 
proposed rule, BSEE had proposed to incorporate by reference for the 
first time API MPMS Chapter 12.2 and remove API MPMS Chapter 12, 
Section 2, parts 1, 2, and 3 since API had withdrawn these three 
standards and replaced them with API MPMS Chapter 12.2. A few 
commenters noted that API MPMS Chapter 12.2 took more than 16 years to 
develop and reach final consensus. They requested BSEE to consider 
grandfathering existing measurement systems, as immediate industrywide 
implementation will require significant time due to limitations on 
manufacturer development and availability of flow computer systems.
    Response: BSEE agrees with the commenter that there are limitations 
on the availability of equipment for existing FMPs on the OCS that will 
be required to comply with API MPMS Chapter 12.2 by August 10, 2026. 
There are currently 201 active oil royalty FMPs and 445 active royalty 
meters on the OCS. BSEE anticipates it will take at most 5 years for 
operators to assess those existing measurement systems and acquire the 
proper equipment to comply with API MPMS Chapter 12.2. Therefore, as 
part of the final rule, BSEE includes a provision delaying the 
compliance date for measurement systems on the OCS in existence as of 
August 10, 2026 that are unable to comply with API MPMS Chapter 12.2. 
However, those existing measurement systems must comply with API MPMS 
Chapter 12.2 by August 11, 2031. During that delay period, but no later 
than August 11, 2031, existing measurement systems may comply with API 
MPMS Chapter 12, Section 2, parts 1, 2, and 3 in lieu of API MPMS 
Chapter 12.2, but must comply with API MPMS Chapter 12.2 no later than 
August 11, 2031. Measurement systems on the OCS in existence prior to 
August 10, 2026 must be in compliance with API MPMS Chapter 12.2 by 
August 11, 2031. This provision does not apply to new oil royalty FMPs 
or royalty meters approved on the OCS, which must comply with Chapter 
12.2 starting on August 10, 2026.
    Summary of comments related to API MPMS Chapter 2.2E and API MPMS 
Chapter 2.2F: A few commenters recommended that BSEE not incorporate 
API MPMS Chapter 2.2E, Part 1, and API MPMS Chapter 2.2F, Part 2 as 
there is limited or no need to incorporate these standards by reference 
for tanks that are not used offshore. The commenters noted that during 
operator working group discussions on these standards, none of the 
participants used horizontal cylindrical tanks in offshore operations.
    Response: BSEE agrees with the commenters' observations on the use, 
or the lack thereof, of horizontal cylindrical tanks on the OCS. 
Therefore, it is not necessary to incorporate by reference these two 
measurement standards into the regulations.
    Summary of comments related to API MPMS Chapter 20.5: A few 
commenters recommended that BSEE not incorporate API MPMS Chapter 20.5 
as there has been significant learning in industry since the 
publication of the standard, which has shown the need for a revision. 
The commenters recommended that BSEE wait to incorporate by reference 
this standard into the regulations until the standard is updated to the 
second edition, which will align the provisions of this standard with 
updates to other standards, thereby eliminating potential conflicting 
requirements. In lieu of incorporating by reference API MPMS Chapter 
20.5 into the regulations, the commenters recommended that BSEE instead 
maintain provisions in current subpart K, Sec.  250.1152.
    Response: BSEE disagrees with the commenters' recommendations. 
Although the first edition of API MPMS Chapter 20.5, which was 
published over 6 years ago, is somewhat out of date, it is far more 
useful as a guidance document than the regulations at subpart K, Sec.  
250.1152. BSEE also notes that API reaffirmed the standard only a year 
ago. Also, the potential for conflicts between standards that are being 
updated continually will always exist and any issues can be addressed 
as they are identified.
    Summary of comments related to API Specification 17D, API 
Specification 6A, and API Standard 6AV1: A few commenters recommended 
that, in conjunction with BSEE's proposal to update the incorporation 
by reference of API Specification 17D to the Third Edition, API 
Specification 6A to the Twenty First Edition, and API Standard 6AV1 to 
the Third Edition into the regulations, BSEE should remove the 
reference to API Specification 6A in Sec.  250.833 Specification for 
underwater safety valves (USVs) and Sec.  250.834 Use of USVs, but 
maintain the reference to API Standard 6AV1. The commenters explained 
that the previous edition of API Spec 17D, i.e., the Second Edition, 
required USV monogramming under the previous edition of API 
Specification 6A, i.e., the Second Edition. However, the updated, Third 
Edition of API Specification 17D allows for USVs to be monogrammed 
under that standard, and its monogramming requirements are the same as 
API Standard 6AV1. The monogramming requirements contained within the 
newer, Twenty First Edition of API Specification 6A are not the same as 
the new editions of API Specification 17D and API Standard 6AV1. 
Therefore, there will be conflicts in the regulations by maintaining 
the reference to API Specification 6A in Sec. Sec.  250.833 and 
250.834.
    Response: BSEE disagrees with the commenters' recommendation to 
remove the reference to API Specification 6A in Sec.  250.833. API 
Specification 6A is not mentioned in Sec.  250.834. Sections 250.802 
and 250.803 reference API Specification 6A within the context of USVs. 
Therefore, for consistency, it will not be appropriate to

[[Page 35321]]

remove the reference to 6A in Sec.  250.833. API Specification 17D is 
not currently referenced in the regulations for USVs. Its reference 
pertains only to those regulations in part 250 that address blowout 
preventers. BSEE considered the option of replacing the reference of 
API Specification 6A in Sec.  250.833 with API Specification 17D. 
However, the requirements in API Specification 17D, as it pertains to 
those provisions that will apply to USVs, are not as stringent and thus 
not as robust as the requirements in API Specification 6A. Existing 
regulations at Sec.  250.801 already provide a process to forgo 
monogramming of safety and pollution prevention equipment, including 
USVs, if an operator chooses to pursue that option.

Platforms- and Structures-Related Comments

    Summary of comments related to compliance with the updated edition 
of API RP 2A-WSD and the new API RP 2A-WSD, API RP 2MET, and API RP 
2SIM standards: A commenter requested BSEE to evaluate facilities and 
structures under prior versions of standards that were in effect at the 
time the assets were originally designed and installed on the OCS. The 
commenter has serious concerns, in reference to the new API RP 2A, 
2MET, and 2SIM standards, that structures designed, fabricated, and 
installed that comply with previous editions of API RP 2A-WSD will be 
inadvertently and overly scrutinized, which could cause unnecessary 
rework to platforms currently operating within their original design 
and/or could restrict the ability to repair or modify platforms in the 
future to meet business needs. Further, the commenter stated that ``new 
structural standards dramatically change the classification, 
inspection, and assessment criteria of structures currently installed 
and compliant with applicable regulations and standards on the OCS.''
    Response: BSEE does not intend to use this standard's update as a 
mechanism to initiate new analyses of all existing facilities and 
structures. However, there will be cases where BSEE will require the 
existing facilities to comply with newer editions of a standard. For 
example, as existing facilities are modified to add new wells or 
topsides equipment, enlarge platform deck space, or repair damage, or 
are replaced to extend service life, BSEE will evaluate the original 
facilities for structural compliance under the current version of the 
standard in BSEE's regulations.
    Another example where BSEE will require an operator to comply with 
the newer edition of API RP 2A-WSD or the new API RP 2SIM for existing 
fixed structures will be in cases where the operator must comply with 
the 5-year assessment process prescribed in paragraph (e) of Sec.  
250.920 ``What are the BSEE requirements for assessment of fixed 
platforms?'' BSEE will require the operator to comply with the new 
standards when performing the required structural analyses under the 
assessment process. The new editions of API RP 2A-WSD and API RP 2SIM 
were published in November 2014, providing more than 9 years for 
industry to comply.
    In the years since API RP 2A-WSD, Twenty Second Edition, was first 
published in 2014, BSEE has been approached numerous times by industry 
with requests to allow the usage API RP 2A-WSD, Twenty Second Edition, 
for planning, designing, and constructing fixed offshore platforms. By 
incorporating by reference API RP 2A-WSD, Twenty Second Edition, BSEE 
is aligning its regulations with the most up-to-date industry standard 
for the structural planning, designing, and construction of fixed 
offshore platforms. Avoidance of the criteria set out in the Twenty 
Second Edition will be ill-considered, ignore good operating practices, 
and dismiss advances in structural design and installation.
    Industry advanced the Twenty Second Edition of API RP 2A-WSD and 
First Edition of API RP 2SIM 9 years ago and has become familiar with 
its methods and tasks. Accordingly, BSEE does not agree with the 
commenter that this standard should not apply to existing structures 
and facilities.
    Summary of comments related to discrepancies between API-RP-2SIM 
and a 2007 Notice to Lessees (NTL): One commenter points to 
discrepancies between API RP 2SIM First Edition (2014) and a Notice to 
Lessees (NTL) issued in 2007 by MMS. The commenter says the 2014 API RP 
2SIM First Edition ``appears to be overly conservative and punitive as 
applied to fixed offshore structures designed to comply with earlier 
editions of API RP 2A-WSD.''
    Response: NTLs are advisory documents that reflect knowledge and 
practices available at the time of their issuance, here 17 years ago. 
In contrast, standards that are incorporated by reference in BSEE 
regulations are the result of lengthy and systematic evaluation by 
industry before being adopted as rules. In November 2014, the API 
designated API RP 2A-WSD, Twenty Second Edition, as establishing the 
minimum acceptable criteria for planning, designing, and constructing 
fixed offshore platforms using working stress designs. API reaffirmed 
the Twenty Second Edition in September 2020. Industry has supported and 
maintained the minimum criteria in the Twenty Second Edition for most 
of the last decade.
    Summary of comments related to ambiguous or conflicting provisions 
in the newer edition of API RP 2A-WSD and the new API RP 2MET and API 
RP 2SIM: A commenter advises BSEE that ``certain vague or ambiguous 
provisions and/or discrepancies within a combination of new structural 
standards exist and should be addressed in conjunction with API 
subcommittee support.''
    Response: Rulemaking is not the proper venue for correcting vague 
or ambiguous provisions in industry standards. Standard development 
organizations, such as API and ASME, coordinate and publish standards 
that are written by industry subject matter experts. Such matters 
should be addressed with SDOs.
    Summary of comments related to Section 9 of API RP 2SIM: A 
commenter questions the accuracy and completeness of certain provisions 
of Section 9 of API RP 2SIM pertaining to assessments for metocean 
loading and criteria contained within that section. The commenter 
recommended that API address its concerns accuracy and completeness of 
information in Section 9 of API RP 2SIM. The commenter also requested 
that BSEE allow the operator to use site-specific metocean data that 
they acquire in preference in lieu of the requirements in Section 
H.9.2.2.5 of API RP 2MET, Second Edition.
    Response: BSEE is not responsible for the preparation of API 
standards, and this rulemaking is not intended to resolve how standards 
are developed or interpreted among industry members. BSEE declines to 
adopt the commenter's request that BSEE preferentially allow operators 
to use site-specific metocean data that they acquire in lieu of 
complying with the requirements in Section H.9.2.2.5 of API RP 2MET, 
Second Edition. BSEE will implement the API RP 2MET, Second Edition 
standard, including the development of site-specific metocean criteria 
in accordance with the methodology in API RP 2MET, Second Edition or 
the use of the default metocean tables and curves within API RP 2MET, 
Second Edition in lieu of developing site specific metocean criteria.
    Summary of comments related to API RP 2GEO: A commenter requested 
BSEE to verify that all methodologies outlined in API RP 2GEO are 
equally acceptable

[[Page 35322]]

to BSEE and may be utilized or applied to be compliant with either one 
or both such guidance documents within the discretion of operator.
    Response: The API adopted, with modifications, ISO 19901-4:2003 as 
API RP 2GEO. Industry has supported and maintained the minimum criteria 
in the combination of ISO 19901-4:2003 and API RP 2GEO for over 20 
years. BSEE declines to consider them as mere ``guidance documents'' to 
be used within the discretion of operators, as the commenter suggests. 
Such an approach would hamstring design criteria for geotechnical and 
foundation design considerations and ignore good operating practices 
achieved over the last 10 years and is not consistent with the approach 
prescribed by the NTTAA. BSEE also declines to identify all 
methodologies set out in API-RP-2GEO standard as ``equally acceptable'' 
because general methodological information is currently available in 
API-RP-2GEO itself.
    Summary of comments related to API Bulletin 2 INT-DG and API 
Bulletin 2 INT-EX: A few commenters recommended that BSEE remove from 
the regulations the incorporation by reference to API Bulletin 2 INT-DG 
and API Bulletin 2 INT-EX since the proposed rule had proposed to 
incorporate by reference API RP 2RIM, API RP 2FSIM, API RP 2MIM, API RP 
2SIM. The provisions in API Bulletin 2 INT-DG and API Bulletin 2 INT-EX 
have been incorporated into those four standards.
    Response: BSEE appreciates the clarification and will remove API 
Bulletin 2 INT-DG and API Bulletin 2 INT-EX from the regulations as 
part of the final rule. This rule also removes API Bulletin 2INT-MET, 
Interim Guidance on Hurricane Conditions in the Gulf of Mexico, from 
the regulations since this rule incorporates by reference API RP 2MET 
into the regulations for the first time.
    Summary of comments related to consistency between the new API RP 
2SIM and newer edition of API RP 2A-WSD, and Sec.  250.920: A few 
commenters noted that there are clear linkages between API RP 2A-WSD 
and API RP 2SIM, for example there are API RP 2A-WSD sections that 
direct users to provisions in 2SIM for the assessment of existing 
structures. The commenter stated that the update to the newer edition 
of API RP 2A-WSD, as well as the incorporation by reference to the new 
API RP 2SIM, will disrupt some of the language in Sec.  250.920, which 
must be reconciled by replacing the reference to Section 17 on platform 
assessments and Section 15 on platform re-use in the previous edition 
of API RP 2A-WSD with the applicable sections in API RP 2SIM. The 
commenter also stated that API RP 2SIM now addresses platform 
assessments of existing platforms and platform re-use, which are no 
longer addressed in the newer edition of API RP 2A-WSD.
    Response: BSEE appreciates the clarification provided by this 
comment and makes the appropriate changes to Sec.  250.920. In 
addition, while not recommended by the commenter, BSEE updates Sec.  
250.919, which also addresses assessments of existing platforms. 
Details regarding the update to these regulatory sections are discussed 
below in Section III. Section-by-Section Summary and Responses to 
Comments on the Proposed Rule.

Crane-Related Comments

    Summary of comments related to API Standard 2CCU: A few commenters 
recommended that BSEE not incorporate by reference API Standard 2CCU 
into the regulations, because incorporating it will make it the sole 
applicable standard in the regulations pertaining to operating and 
maintaining offshore cargo carrying units. The commenters noted that 
the standard was developed as guidance for the U.S. to complement other 
international standards. Incorporating it by reference will make 2CCU 
the only standard to comply with. However, there are other standards 
(industry and company standards) that are used in industry and meet the 
operational and safety goals necessary for operations. BSEE should not 
adopt this sole standard without further consideration of the 
appropriate suite of both domestic and international standards 
applicable in this space. The commenters urged BSEE to withdraw the 
current listing of 2CCU from this rule and engage in additional 
discussion on what could be a more appropriate approach to meet the 
goals sought by BSEE.
    Response: BSEE agrees with the commenters and plans to conduct a 
broader identification and evaluation of standards, both domestic and 
international, that will be appropriate to incorporate by reference to 
ensure safe operations and maintenance of offshore cargo carrying units 
on the OCS.

III. Section-by-Section Summary and Responses to Comments on the 
Proposed Rule

    BSEE is finalizing revisions to the following regulations:

Subpart A--General


Sec.  250.198  Documents incorporated by Reference.

Summary of Proposed Rule Revisions
    BSEE proposed to make extensive changes to Sec.  250.198, which 
currently incorporates by reference 127 documents into the regulations 
under part 250. These changes include:
    <bullet> incorporating by reference 24 new standards;
    <bullet> updating 40 standards and removing 10 standards currently 
incorporated by reference into the regulations;
    <bullet> replacing the numbered list of API standards incorporated 
by reference in Sec.  250.198 with a more user-friendly table organized 
by category and standard number, which will make it easier to locate 
the API standards that BSEE incorporates by reference; and
    <bullet> renumbering the regulatory citations for the AGA and API 
standards to account for all the documents that will be incorporated by 
reference into the regulations for the first time.
Summary of Final Rule Revisions
    BSEE received and considered many comments on the standards 
mentioned in Sec.  250.198 of the proposed rule. BSEE is finalizing the 
updates it had included in the proposed rule, except for the following 
changes:
    <bullet> Incorporating by reference API MPMS Chapter 2.2E, Part 1, 
API MPMS Chapter 2.2F, Part 2, and API Standard 2CCU for the first time 
into the regulations.
    <bullet> Removing the references to API MPMS Chapter 12, Section 2, 
parts 1 through 3.
    <bullet> Incorporating updates to API Spec 2C (from the sixth to 
eighth edition) and API RP 2D (from the sixth to the seventh edition).
    <bullet> Preserving the incorporation by reference of API Bulletin 
2INT-DG and API Bulletin 2INT-EX in paragraph (e) of Sec.  250.198.
    <bullet> Incorporating updates to API Standard 2RD from the first 
to second edition. Unrelated to public comments, BSEE will also take 
the following actions as part of the final rule:
    <bullet> Adding recent reaffirmation dates to certain standards 
that were mentioned in the proposed rule, which include:

[cir] API MPMS Chapter 7.1--Temperature Determination-Liquid-in-Glass 
Thermometers, Second Edition, August 2017; reaffirmed May 2024
[cir] API MPMS Chapter 12--Calculation of Petroleum Quantities, Section 
2--Calculation of Petroleum Quantities Using Dynamic Measurement

[[Page 35323]]

Methods and Volumetric Correction Factors, Part 4--Calculation of Base 
Prover Volumes by the Waterdraw Method, First Edition, December 1997; 
reaffirmed September 2014, reaffirmed January 2022
[cir] API MPMS Chapter 21--Flow Measurement Using Electronic Metering 
Systems, Section 2--Electronic Liquid Volume Measurement Using Positive 
Displacement and Turbine Meters; First Edition, June 1998; reaffirmed 
October 2016, reaffirmed December 2023
[cir] API RP 2556, Recommended Practice for Correcting Gauge Tables for 
Incrustation, Second Edition, August 1993; reaffirmed November 2013; 
reaffirmed November 2023

    The following table lists those standards that will be renumbered 
in the final rule and their paragraph numbers in the existing 
regulations, the proposed rule, and the final rule:

----------------------------------------------------------------------------------------------------------------
                                          Existing paragraph    Proposed rule paragraph    Final rule paragraph
   Standard title in Sec.   250.198         number in Sec.           number in Sec.           number in Sec.
-----------------------------------------------250.198------------------250.198------------------250.198--------
AGA Report No. 7.....................                                   (b)(1).
                                      --------------------------------------------------------------------------
AGA Report No. 8, Part 1.............  No reference...........                 (b)(2) and (b)(3).
                                                               -------------------------------------------------
AGA Report No. 8, Part 2
AGA Report No. 9.....................  (b)(2) and (b)(3)......                 (b)(4) and (b)(5).
AGA Report No. 10
                                                               -------------------------------------------------
AGA Report No. 11....................  No reference...........                       (b)(6).
                                                               -------------------------------------------------
API MPMS Chapter 1...................  (e)(7) to (e)(9).......  (e)(1).................  (e)(1)(i)(A).
API MPMS Chapter 2, Section 2A                                  (e)(2).................  (e)(1)(ii)(A).
API MPMS Chapter 2, Section 2B                                  (e)(3).................  (e)(1)(ii)(B).
API MPMS Chapter 2.2E................  No reference...........  (e)(4) and (e)(5)......  Removed.
API MPMS Chapter 2.2F
API MPMS Chapter 3.1A................  (e)(10) and (e)(11)....  (e)(6) and (e)(7)......  (e)(1)(iii)(A) to
                                                                                          (e)(1)(iii)(B).
API MPMS Chapter 3, Section 1B
API MPMS Chapter 4, Section 1........  (e)(12) to (e)(18).....  (e)(8) to (e)(14)......  (e)(1)(iv)(A) to
                                                                                          (e)(1)(iv)(G).
API MPMS Chapter 4, Section 2
API MPMS Chapter 4, Section 4
API MPMS Chapter 4.5
API MPMS Chapter 4, Section 6
API MPMS Chapter 4, Section 7
API MPMS Chapter 4.8
API MPMS Chapter 4, Section 9, Part 2  No reference...........  (e)(15)................  (e)(1)(iv)(H).
API MPMS Chapter 5, Section 1........  (e)(19) to (e)(25).....  (e)(16) to (e)(22).....  (e)(1)(v)(A) to
                                                                                          (e)(1)(v)(G).
API MPMS Chapter 5, Section 2
API MPMS Chapter 5, Section 3
API MPMS Chapter 5, Section 4
API MPMS Chapter 5, Section 5
API MPMS Chapter 5, Section 6
API MPMS Chapter 5.8
API MPMS Chapter 6.1.................  (e)(26) to (e)(28).....  (e)(23) to (e)(25).....  (e)(1)(vi)(A) to
                                                                                          (e)(1)(vi)(C).
API MPMS Chapter 6, Section 6
API MPMS Chapter 6, Section 7
API MPMS Chapter 7.1.................  No reference...........  (e)(26) and (e)(27)....  (e)(1)(vii)(A) and
                                                                                          (e)(1)(vii)(B).
API MPMS Chapter 7.3
                                                               -------------------------------------------------
API MPMS Chapter 7...................  (e)(29)................                      Removed.
                                                               -------------------------------------------------
API MPMS Chapter 8.1.................  (e)(30) and (e)(31)....  (e)(28) and (e)(29)....  (e)(1)(viii)(A) and
                                                                                          (e)(1)(viii)(B).
API MPMS Chapter 8.2
API MPMS Chapter 8.3.................  No reference...........  (e)(30)................  (e)(1)(viii)(C).
API MPMS Chapter 9.1.................  (e)(32) and (e)(33)....  (e)(31) and (e)(32)....  (e)(1)(ix)(A) and
                                                                                          (e)(1)(ix)(B).
API MPMS Chapter 9.2
API MPMS Chapter 9.4.................  No reference...........  (e)(33)................  (e)(1)(ix)(C).
API MPMS Chapter 10, Section 1.......  (e)(34) to (e)(38).....  (e)(32) to (e)(36).....  (e)(1)(x)(A) to
                                                                                          (e)(1)(x)(E).
API MPMS Chapter 10.2
API MPMS Chapter 10.3
API MPMS Chapter 10.4
API MPMS Chapter 10.9
API MPMS Chapter 11.1................  (e)(39) to (e)(41).....  (e)(39) to (e)(41).....  (e)(1)(xi)(A) to
                                                                                          (e)(1)(xi)(C).
API MPMS Chapter 11, Section 1
API MPMS Chapter 11.2.2
API MPMS Chapter 11, Section 2, Part   (e)(42)................  (e)(42)................  (e)(1)(xi)(D).
 2.
API MPMS, Chapter 12, Section 2, Part  (e)(43) to (e)(45).....  No reference...........  (e)(1)(xii)(A) to
 1.                                                                                       (e)(1)(xii)(C).
API MPMS, Chapter 12, Section 2, Part
 2
API MPMS, Chapter 12, Section 2, Part
 3
API MPMS Chapter 12, Section 2, Part   (e)(46)................  (e)(44)................  (e)(1)(xii)(D).
 4.
API MPMS Chapter 12.2................  No reference...........  (e)(43)................  (e)(1)(xii)(E).
API MPMS Chapter 14.1................  No reference...........  (e)(46)................  (e)(1)(xiii)(A).
API MPMS Chapter 14.3.1..............  (e)(47) to (e)(50).....  (e)(46) to (e)(49).....  (e)(1)(xiii)(B) to
                                                                                          (e)(1)(xiii)(E).

[[Page 35324]]

 
API MPMS Chapter 14.3.2
API MPMS 14.3.3
API MPMS Chapter 14.5/GPA Standard
 2172-09
                                                               -------------------------------------------------
API MPMS Chapter 14, Section 6.......  (e)(51)................                      Removed.
                                                               -------------------------------------------------
API MPMS Chapter 14, Section 8.......  (e)(52) and (e)(53)....  (e)(50) and (e)(51)....  (e)(1)(xiii)(F) and
                                                                                          (e)(1)(xiv)(A).
API MPMS Chapter 20, Section 1
API MPMS Chapter 20.3................  No reference...........  (e)(52) and (e)(53)....  (e)(1)(xiv)(B) and
                                                                                          (e)(1)(xiv)(C).
API MPMS Chapter 20.5
                                      --------------------------------------------------
API MPMS Chapter 21, Section 1.......                 (e)(54) to (e)(56)                 (e)(1)(xv)(A) to
                                                                                          (e)(1)(xv)(C).
                                      --------------------------------------------------
API MPMS Chapter 21, Section 2
API MPMS Chapter 21, Addendum to
 Section 2.
                                      --------------------------------------------------
API RP 2A-WSD........................                       (e)(57)                      (e)(2)(i)(A).
                                      --------------------------------------------------
API Spec. 2C.........................  (e)(81)................  (e)(58)................  (e)(2)(i)(B).
API RP 2D............................  (e)(58) and (e)(59)....  (e)(60) and (e)(61)....  (e)(2)(i)(C) and
                                                                                          (e)(2)(i)(D).
API RP 2FPS
API RP 2FSIM.........................  No reference...........  (e)(62) and (e)(63)....  (e)(2)(i)(E) and
                                                                                          (e)(2)(i)(F).
API RP 2GEO
API RP 2I............................  (e)(60)................  (e)(64)................  (e)(2)(i)(G).
API RP 2MET..........................  No reference...........  (e)(65) and (e)(66)....  (e)(2)(i)(H) and
                                                                                          (e)(2)(i)(I).
API RP 2MIM
ANSI/API RP 2N.......................  (e)(61) and (e)(62)....  (e)(67) and (e)(68)....  (e)(2)(i)(J) and
                                                                                          (e)(2)(i)(K).
API RP 2RD
API RP 2RIM..........................  No reference...........  (e)(69) and (e)(70)....  (e)(2)(i)(L) and
                                                                                          (e)(2)(i)(M).
API RP 2SIM
API RP 2SK...........................  (e)(63) to (e)(65).....  (e)(71) to (e)(73).....  (e)(2)(i)(N) to
                                                                                          (e)(2)(i)(P).
API RP 2SM
API RP 2T
API Specification 6A.................  (e)(82) to (e)(87).....  (e)(74) to (e)(79).....  (e)(2)(i)(Q) to
                                                                                          (e)(2)(i)(V).
API Standard 6AV1
API STD 6AV2
API Specification 6D
API Spec 11D1
ANSI/API Spec 14A
API RP 14B...........................  (e)(66) to (e)(72).....  (e)(80) to (e)(86).....  (e)(2)(i)(W) to
                                                                                          (e)(2)(i)(CC).
API RP 14C
API RP 14E
API RP 14F
API RP 14FZ
API RP 14G
API RP 14J
API Spec 16A.........................  (e)(88) to (e)(90).....  (e)(87) to (e)(89).....  (e)(2)(i)(DD) to
                                                                                          (e)(2)(i)(FF).
API Spec 16C
API Spec 16D
API RP 16ST..........................  No reference...........  (e)(90)................  No reference.
                                      --------------------------------------------------
API Specification 17D................                       (e)(91)                      (e)(2)(i)(GG).
                                      --------------------------------------------------
API RP 17H...........................  (e)(73)................  (e)(92)................  (e)(2)(i)(HH).
API Spec 17J.........................  (e)(92)................  (e)(93)................  (e)(2)(i)(II).
API Spec 20E.........................  No reference...........  (e)(94) and (e)(95)....  (e)(2)(i)(JJ) and
                                                                                          (e)(2)(i)(KK).
API Spec 20F
API Standard 53......................  (e)(94)................  (e)(96)................  (e)(2)(i)(LL).
API RP 65............................  (e)(74)................  (e)(97)................  (e)(2)(i)(MM).
                                                               -------------------------------------------------
API RP 86............................  (e)(76)................                      Removed.
                                                               -------------------------------------------------
API Standard 65, Part 2..............  (e)(95)................  (e)(98)................  (e)(2)(i)(NN).
API RP 75............................  (e)(75)................  (e)(99)................  (e)(2)(i)(OO).
API RP 90............................  (e)(77)................  (e)(100)...............  (e)(2)(i)(PP).
API RP 500...........................  (e)(78) and (e)(79)....  (e)(101) and (e)(102)..  (e)(2)(ii)(A) and
                                                                                          (e)(2)(ii)(B).
API RP 505
API 510..............................  (e)(1) and (e)(2)......  (e)(103) and (e)(104)..  (e)(2)(ii)(C) and
                                                                                          (e)(2)(ii)(D).
API 570
                                                               -------------------------------------------------
API Standard 2552....................  (e)(96)................                      Removed.
                                                               -------------------------------------------------
API Standard 2555....................  (e)(97)................  (e)(105)...............  (e)(2)(iii)(A).

[[Page 35325]]

 
API RP 2556..........................  (e)(80)................  (e)(106)...............  (e)(2)(iii)(B).
API Spec Q1..........................  (e)(93)................  (e)(107)...............  (e)(2)(iv)(A).
API Bulletin 2INT-DG.................  (e)(3) and (e)(4)......  (e)(108) and (e)(109)..  Removed.
API Bulletin 2INT-EX
                                                               -------------------------------------------------
API Bulletin 2INT-MET................  (e)(5).................                      Removed.
                                                               -------------------------------------------------
API Bulletin 92L.....................  (e)(6).................  (e)(110)...............  (e)(2)(v)(A).
                                      --------------------------------------------------
ASME Boiler and Pressure Vessel Code,                       (f)(3)                       (f)(3)(i).
 Section VIII.
                                      --------------------------------------------------
ISO/IEC (International                                      (j)(1)                       (k)(1).
 Electrotechnical Commission) 17011.
                                      --------------------------------------------------------------------------
GPA Standard 2198-16.................  No reference...........                  (j)(1) to (j)(3).
                                      --------------------------------------------------------------------------
GPA Standard 2261-20
GPA Standard 2286-14
----------------------------------------------------------------------------------------------------------------

    Summary of Comments: A few commenters recommended that BSEE not 
incorporate API MPMS Chapter 2.2E, Part 1, and API MPMS Chapter 2.2F, 
Part 2 as there is limited/no need to incorporate these standards by 
reference for tanks which are not used offshore.
    Response: BSEE agrees with the commenters' observations on the use, 
or the lack thereof, of horizontal cylindrical tanks on the OCS. 
Therefore, the final rule does not incorporate by reference these two 
measurement standards into the regulations.
    Summary of Comments: A few commenters noted that several oil and 
gas measurement-related standards referenced in the proposed rule have 
had additional reaffirmations made by the API.
    Response: All the standards that the commenters identified were, in 
fact, published documents. Other than API RP 2556, which was reaffirmed 
in November of 2023, none of the publications contained the additional 
reaffirmation dates that the commenters recommended BSEE acknowledge. 
In accordance with paragraph (i) of 1 CFR 51.7(a)(2), a publication is 
eligible for incorporation by reference if it is published data. While 
reviewing this comment, BSEE was also able to identify additional 
recent reaffirmation dates for other standards mentioned in the 
proposed rule, including API MPMS Chapter 12, Section 2, API MPMS 
Chapter 21, Section 1, and API MPMS Chapter 21, Section 2, which will 
be acknowledged as part of this final rule.
    Summary of Comments: In the proposed rule, BSEE had proposed to 
incorporate by reference for the first time API MPMS Chapter 12.2 and 
remove API MPMS Chapter 12, Section 2, parts 1, 2, and 3 since API had 
withdrawn these three standards and replaced them with API MPMS Chapter 
12.2. A few commenters requested BSEE to consider grandfathering 
existing measurement systems, as immediate industrywide implementation 
will require significant time due to limitations on manufacturer 
development and availability of flow computer systems.
    Response: BSEE agrees with the commenter that there are limitations 
on the availability of equipment for existing FMPs on the OCS that will 
be required to immediately comply with API MPMS Chapter 12.2 by August 
10, 2026. There are currently 201 active oil royalty FMPs and 445 
active royalty meters on the OCS. BSEE anticipates it will take at most 
5 years for operators to assess those existing measurement systems and 
acquire the proper equipment to comply with API MPMS Chapter 12.2. 
Therefore, BSEE is delaying compliance with API MPMS Chapter 12.2 for 
flow computer systems at BSEE designated FMPs in existence as of August 
10, 2026 until August 11, 2031. During that delay period, but no later 
than August 11, 2031, existing measurement systems must comply with API 
MPMS Chapter 12, Section 2, parts 1, 2, and 3 in lieu of API MPMS 
Chapter 12.2, but only until August 11, 2031. Measurement systems on 
the OCS in existence prior to August 10, 2026 must be in compliance 
with API MPMS Chapter 12.2 by August 11, 2031. BSEE must continue to 
incorporate by reference these documents into the regulations if it is 
allowing BSEE-designated, existing FMPs to comply with these documents.
    Summary of Comments: A few commenters recommended that BSEE remove 
from the regulations the incorporation by reference to API Bulletin 2 
INT-DG and API Bulletin 2 INT-EX since the proposed rule had proposed 
to incorporate by reference API RP 2RIM, API RP 2FSIM, API RP 2MIM, API 
RP 2SIM. The provisions in API Bulletin 2 INT-DG and API Bulletin 2 
INT-EX have been incorporated into those four standards.
    Response: BSEE agrees with the commenters and is removing API 
Bulletin 2 INT-DG and API Bulletin 2 INT-EX from the regulations as 
part of the final rule.
    BSEE did not receive any comments on its proposal to incorporate 
updates to API Spec 2C (from the sixth to eighth edition) and API RP 2D 
(from the sixth to the seventh edition). However, as part of that 
proposal, BSEE did not propose any provisions that will clarify how 
operators must comply with the newer editions of these standards. For 
example, how should cranes that existed prior to the publication of 
these more recent documents comply with the newer editions? BSEE's 
existing regulations in paragraphs (c) and (d) of Sec.  250.108 What 
requirements must I follow for cranes and other material-handling 
equipment? provide that clarification. Should BSEE provide a similar 
clarification for the newer editions of API Spec 2C and API RP 2D? Are 
there any other standards applicable to cranes that BSEE should 
consider incorporating by reference? BSEE will

[[Page 35326]]

repropose the incorporation of updates to API Spec 2C and API RP 2D, 
address these types of questions, and seek the public's input in a 
future rulemaking.
    BSEE also did not receive any comments on its proposal to 
incorporate updates to API Standard 2RD from the first to second 
edition. As discussed later below in the in the section titled Sec.  
250.733 What are the requirements for a surface BOP stack?, BSEE needs 
more time to perform additional evaluations on API Standard 2RD to 
address concerns about the availability of clear guidance on how to 
properly select any of the four design methods contained within API 
Standard 2RD for a riser system. Accordingly, BSEE will not finalize 
the proposed incorporation of API Standard 2RD at this time and will 
make final decisions as to whether to incorporate some or all of this 
standard in a final rule at a later date. Please refer to discussion 
below under the Sec.  250.733 What are the requirements for a surface 
BOP stack? section for more details regarding this issue.

Subpart D--Oil and Gas Drilling Operations

Sec.  250.470 What additional information must I submit with my APD for 
Arctic OCS exploratory drilling operations?
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph (g) of Sec.  250.470 by changing 
an existing reference from API RP 2N to ANSI/API RP 2N, to align with 
the title of the document as incorporated in paragraph (e) of Sec.  
250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section and is 
including the proposed language in the final rule without change.

Subpart G--Well Operations and Equipment

Sec.  250.730 What are the general requirements for BOP systems and 
system components?
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph (a)(2) of Sec.  250.730 by 
changing existing references from ANSI/API Spec. 6A to API 
Specification 6A, ANSI/API Spec. 16A to API Spec 16A, ANSI/API Spec. 
16C to API Spec 16C, and ANSI/API Spec 17D to API Specification 17D to 
align with the title of the documents as incorporated in Sec.  250.198 
paragraph (e). BSEE also proposed adding references to API Spec 20E and 
API Spec 20F as new paragraphs (a)(2)(vi) and (vii) of Sec.  250.730 to 
align with the incorporation by reference of these standards for the 
time in paragraph (e) of Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section and is 
including the proposed language in the final rule without change.
Sec.  250.733 What are the requirements for a surface BOP stack?
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph (b) of Sec.  250.733 by changing 
an existing reference from API RP 2RD to API Standard 2RD, to align 
with the title of the document as incorporated in paragraph (e) of 
Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section. 
However, BSEE needs more time to perform additional evaluations on API 
Standard 2RD. This standard addresses structural analysis procedures, 
design guidelines, component selection criteria, and typical designs 
for all new riser systems used on floating production systems and 
tension-leg platforms. The presence of riser systems within a floating 
production system has a direct and often significant effect on the 
design of all other major equipment subsystems. This document includes 
recommendations on:
    (1) Configurations and components;
    (2) General design considerations based on environmental and 
functional requirements; and
    (3) Materials considerations in riser design.
    API Standard 2RD also includes multiple design methods for riser 
systems that are in addition to what is already provided in API RP 2RD. 
The design method in API RP 2RD, known as the working stress design, is 
based on the principles of limiting stresses in the risers and related 
components under normal, extreme, and accidental conditions. The 
additional design methods in API Standard 2RD are all based on good 
engineering practices and are meant to provide for more accurate 
designs. However, API Standard 2RD does not provide guidelines for 
selecting the appropriate design method for a given project. 
Accordingly, BSEE will not finalize the proposed incorporation of API 
Standard 2RD at this time and will not include the proposed regulatory 
changes to Sec.  250.733 in this final rule. BSEE will make final 
decisions as to whether to incorporate some or all of this standard in 
a final rule at a later date.
Sec.  250.750 What are the coiled tubing requirements?
Summary of Proposed Rule Revisions
    BSEE proposed to add paragraph (c) to Sec.  250.750 to clarify that 
operators must follow API RP 16ST. This proposed change will align with 
the incorporation by reference of this standard for the first time in 
paragraph (e) of Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section. 
However, BSEE needs more time to perform additional evaluations on API 
RP 16ST, particularly with respect to industry's implementation of 
certain provisions in the document. BSEE may consider API RP 16ST in a 
future rulemaking after evaluating these implementation issues.

Subpart H--Oil and Gas Production Safety Systems

Sec.  250.800 General
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph (c) of Sec.  250.800 by changing 
an existing reference from API RP 2RD to API Standard 2RD, to align 
with the title of the document as incorporated in paragraph (e) of 
Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section. 
However, BSEE is not updating API RP 2RD to API Standard 2RD as part of 
this final rule, as explained in the Sec.  250.733 What are the 
requirements for a surface BOP stack? section above. Therefore, the 
final rule will not include the update paragraph (c) of Sec.  250.800.
Sec.  250.802 Requirements for SPPE
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraphs (a) and (c) of Sec.  250.802 by 
changing existing references from ANSI/API Spec. 6A to API 
Specification 6A and from API Spec 6AV1 to API Standard 6AV1, to align 
with the titles of these documents as incorporated in paragraph (e) of 
Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section and is 
including the proposed language in the final rule without change.
Sec.  250.803 What SPPE failure reporting procedures must I follow?
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph (a) of Sec.  250.803 by changing 
an existing reference from ANSI/API Spec 6A to

[[Page 35327]]

API Specification 6A, to align with the title of the document as 
incorporated in paragraph (e) of Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section and is 
including the proposed language in the final rule without change.
Sec.  250.833 Specification for Underwater Safety Valves (USVs)
Summary of Proposed Rule Revisions
    BSEE proposed to update the introductory paragraph of Sec.  250.833 
by changing existing references from ANSI/API Spec 6A to API 
Specification 6A and from API Spec 6AV1 to API Standard 6AV1, to align 
with the titles of these documents as incorporated in paragraph (e) of 
Sec.  250.198.
Summary of Final Rule Revisions
    BSEE received and considered a comment on this section. However, 
BSEE did not agree with the comment as explained above in section II. 
Discussion of Public Comments on the Proposed Rule and is including the 
proposed language in the final rule without change.
    Summary of comment: A few commenters recommended that, in 
conjunction with BSEE's proposal to update the incorporation by 
reference of API Specification 17D to the Third Edition, API 
Specification 6A to the Twenty First Edition, and API Standard 6AV1 to 
the Third Edition into the regulations, BSEE should remove the 
reference to API Specification 6A in Sec. Sec.  250.833 and 250.834 but 
maintain the reference to API Standard 6AV1. The commenter explained 
that the Second Edition of API Spec 17D required USV monogramming under 
the Twentieth Edition of API Specification 6A. However, the updated, 
Third Edition of API Specification 17D allows for USVs to be 
monogrammed under that standard, and its monogramming requirements are 
the same as API Standard 6AV1. The monogramming requirements contained 
within the newer, Twenty First Edition of API Specification 6A are not 
the same as the new editions of API Specification 17D and API Standard 
6AV1. Therefore, there will be conflicts in the regulations by 
maintaining the reference to API Specification 6A in Sec. Sec.  250.833 
and 250.834.
    Response: BSEE disagrees with the commenters' recommendation to 
remove the reference to API Specification 6A in Sec.  250.833. API 
Specification 6A is not mentioned in Sec.  250.834. Sections 250.802 
and 250.803 reference API Specification 6A within the context of USVs. 
Therefore, for consistency, it will not be appropriate to remove the 
reference to 6A in Sec.  250.833, as this section also addresses USVs. 
API Spec 17D is not currently referenced in the regulations for USVs. 
Its reference pertains only to those regulations in part 250 that 
address Blowout Preventers. BSEE considered the option of replacing the 
reference of API Specification 6A in Sec.  250.833 with API Spec 17D. 
However, the requirements in API Spec 17D that pertain to USVs are not 
as stringent, and thus, not as robust as the requirements in API 
Specification 6A. Existing regulations at Sec.  250.801 already provide 
a process to forgo monogramming of safety and pollution prevention 
equipment, including USVs, if an operator chooses to pursue that 
option.
Sec.  250.851 Pressure Vessels (Including Heat Exchangers) and Fired 
Vessels
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph of (a)(1)(i) of Sec.  250.851 by 
changing an existing reference from ANSI/ASME Boiler and Pressure 
Vessel Code to ASME Boiler and Pressure Vessel Code, to align with the 
titles of these documents as incorporated in paragraph (f) of Sec.  
250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section and is 
including the proposed language in the final rule without change.
Sec.  250.873 Subsea Gas Lift Requirements
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph (b) of Sec.  250.873 by changing 
existing references from ANSI/API Spec. 6A to API Specification 6A and 
from API Spec 6AV1 to API Standard 6AV1, to align with the titles of 
these documents as incorporated in paragraph (e) of Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section and is 
including the proposed language in the final rule without change.
Sec.  250.874 Subsea Water Injection Systems
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph (g)(2) of Sec.  250.874by 
changing an existing reference from ANSI/API Spec. 6A to API 
Specification 6A and from API Spec. 6AV1 to API Standard 6AV1, to align 
with the titles of these documents as incorporated in paragraph (e) of 
Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section and is 
including the proposed language in the final rule without change.

Subpart I--Platforms and Structures

Sec.  250.901 What industry standards must your platform meet?
Summary of Proposed Rule Revisions
    BSEE proposed to revise the references in paragraphs (a) and (d) of 
Sec.  250.901 from API RP 2RD to API Standard 2RD, to align with the 
title of this document as proposed for incorporation in paragraph (e) 
of Sec.  250.198. BSEE also proposed to add API RP 2FSIM, API RP 2GEO, 
API RP 2MET, API RP 2MIM, API RP 2RIM, and API RP 2SIM to paragraph (a) 
Sec.  250.901, and add API RP 2FSIM, API RP 2GEO, API RP 2MET, API RP 
2SIM, API RP 2MIM, and API RP 2RIM to paragraph (d) of Sec.  250.901, 
to align with the incorporation by reference of these standards for the 
time in paragraph (e) of Sec.  250.198. BSEE will also be removing API 
Bulletin 2INT-MET, Interim Guidance on Hurricane Conditions in the Gulf 
of Mexico, from the regulations since the Bureau will be incorporating 
by reference API RP 2MET into the regulations for the first time.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section or 
BSEE's proposal to incorporate by reference API RP 2FSIM, API RP 2GEO, 
API RP 2MET, API RP 2SIM, API RP 2MIM, and API RP 2RIM into the 
regulations for the first time. Therefore, the Bureau will add 
references to these documents in this section as part of the final 
rule. However, BSEE will not revise the references in paragraphs (a) 
and (d) from API RP 2RD to API Standard 2RD since the Bureau is not 
updating the incorporation by reference of this standard at this time.
    The final rule also removes the references to API Bulletin 2 INT-DG 
and API Bulletin 2 INT-EX from the Industry Table of paragraph (d). 
BSEE received a general comment explaining that the provisions in API 
Bulletin 2 INT-DG and API Bulletin 2 INT-EX have been incorporated into 
API RP 2RIM, API RP 2FSIM, API RP 2MIM, API RP 2SIM.
    In the final rule, BSEE will also renumber the following regulatory 
designations to certain standards in the Industry Table of paragraph 
(d) in the proposed rule due to the removal of API Bulletin 2 INT-DG, 
API Bulletin 2 INT-

[[Page 35328]]

EX, and API Bulletin 2INT-MET from the regulations:

----------------------------------------------------------------------------------------------------------------
                                          Existing paragraph    Proposed rule paragraph    Final rule paragraph
 Standard title in Sec.   250.901(d)        number in Sec.           number in Sec.           number in Sec.
                                              250.901(d)               250.901(d)               250.901(d)
----------------------------------------------------------------------------------------------------------------
API Bulletin 2INT-DG.................                  (d)(3) and (d)(4)                 Removed.
API Bulletin 2INT-EX.................                                                    .......................
                                      --------------------------------------------------------------------------
API Bulletin 2INT-MET................  (d)(5).................                      Removed.
                                      --------------------------------------------------------------------------
API RP 2A-WSD........................  (d)(6) to (d)(23)......  (d)(5) to (d)(22)......  (d)(3) to (d)(20).
ASTM Standard C 33-07................
ASTM Standard C 94/C 94M-07..........
ASTM Standard C 150-07...............
ASTM Standard C 330-05...............
ASTM Standard C 595-08...............
AWS D1.1.............................
AWS D1.4.............................
AWS D3.6M............................
NACE Standard RP 0176-2003...........
ACI 357R-84..........................
API RP 14J...........................
API RP 2FPS..........................
API RP 2RD...........................
API RP 2SK...........................
API RP 2T............................
API RP 2SM...........................
API RP 2I............................
API RP 2FSIM.........................  No reference...........  (d)(23) to (d)(29).....  (d)(20) to (d)(26).
API RP 2GEO..........................
API RP 2MET..........................
API RP 2SIM..........................
API RP 2MIM..........................
API RP 2RIM..........................
----------------------------------------------------------------------------------------------------------------

    Finally, BSEE will not be updating the incorporation by reference 
of API Standard 2RD to API RP 2RD as part of this final rule. As 
previously mentioned in the discussion above regarding the final rule 
revisions to Sec.  250.733 What are the requirements for a surface BOP 
stack?, BSEE needs more time to perform additional evaluations on API 
Standard 2RD to address concerns about the availability of clear 
guidance on how to properly select any of the four design methods 
contained within API Standard 2RD for a riser system. Accordingly, BSEE 
is not finalizing the proposed incorporation of API Standard 2RD at 
this time and will make final decisions as to whether to incorporate 
some or all of this standard in a final rule at a later date.
Sec.  250.919 What in-service inspection requirements must I meet?
Summary of Proposed Rule Revisions
    BSEE did not propose an update to Sec.  250.919 as part of the 
proposed rule. However, BSEE did receive a comment and recommendation 
on Sec.  250.920 that the Bureau agrees with that impacts certain 
provisions in Sec.  250.919. Section 250.919 includes provisions 
related to in-service inspection requirements; requirements for 
assessment of fixed platforms; and analysis of platform cumulative 
fatigue.
Summary of Final Rule Revisions
    The final rule removes references to API RP 2A-WSD in paragraph 
(b)(2) of Sec.  250.919 and replaces it with a reference to Section 6.6 
of API RP 2SIM. The final rule also adds a new paragraph (d), at the 
end of Sec.  250.919 that clarifies the in-service inspection intervals 
for offshore platforms in accordance with the table, i.e., Table 3, in 
Section 6.5.3 of API RP 2SIM. Paragraph (d) clarifies that the operator 
must follow the specific time interval from Table 3 that applies to its 
platform based on the exposure category BSEE has accepted under Sec.  
250.920 and the platform's survey level established in accordance with 
Section 6.5 of API RP 2SIM. BSEE is not incorporating by reference 
Section 6.5.2.2 (Risk Based Inspection Intervals) of API RP 2SIM, which 
will also be stated in the new paragraph (d).
    Summary of comments: A few commenters noted that there are clear 
linkages between API RP 2A-WSD and API RP 2SIM which directs users to 
provisions, including provisions about in-service inspections, in API 
RP 2SIM for the assessment of existing structures. The commenters noted 
that BSEE's update to the newer edition (i.e., Twenty Second Edition) 
of API RP 2A-WSD, as well as the incorporation by reference to the new 
edition (i.e., First Edition) of API RP 2SIM, will disrupt some of the 
language in Sec.  250.920, which must be reconciled by replacing the 
reference to Section 17 on platform assessments and Section 15 on 
platform re-use in the previous edition of API RP 2A-WSD with the 
applicable sections in API RP 2SIM. API RP 2SIM now addresses platform 
assessments of existing platforms and platform re-use, which are no 
longer addressed in the newer edition of API RP 2A-WSD.
    Response: BSEE agrees with the issues identified and recommended 
changes the commenters raise regarding proposed Sec.  250.920. These 
issues also exist in Sec.  250.919. More specifically, the survey 
intervals for offshore platforms have resided within Table 14.4.2-1 of 
the Twenty First Edition of API RP 2A-WSD, which BSEE had already 
incorporated by reference into the regulations. Table 14.4.2-1 and all 
of Section 14 from API RP 2A-WSD, Twenty First Edition, were removed 
and placed into API RP 2SIM, First Edition. Table 3 within Section 
6.5.3 of API RP 2SIM is the same survey intervals from the old Table 
14.4.2-1. In the final rule, BSEE will use the same survey intervals

[[Page 35329]]

that have been used historically, which are now in Table 3 of API RP 
2SIM. Also, defining these survey intervals in regulation now will 
allow NTL 2009-G32 to expire and will eliminate any confusion regarding 
the use of difficult-to-regulate risk-based survey intervals (as 
discussed in Section 6.5.2 of API RP 2SIM). The changes BSEE is making 
to Sec.  250.919 are for consistency purposes, to ensure all the 
regulations in 30 CFR part 250 align with BSEE's incorporation by 
reference of the Twenty Second Edition of API RP 2A-WSD and the First 
Edition of API RP 2SIM into the regulations.
Sec.  250.920 What are the BSEE requirements for assessment of fixed 
platforms?
Summary of Proposed Rule Revisions
    BSEE did not propose an update to Sec.  250.920 as part of the 
proposed rule. However, BSEE did receive a comment and recommendation 
about Sec.  250.920 and this section's relation to API RP 2A-WSD and 
API RP 2SIM. Section 250.920 addresses the requirements an operator 
must follow when assessing the structural performance of fixed 
platforms considered to be at risk from a life-safety or consequences-
of-failure point of view, when subjected to fire, blasts, and 
accidental loading events.
Summary of Final Rule Revisions
    The final rule replaces all applicable references to information 
from the Twenty First Edition of API RP 2A-WSD contained throughout 
Sec.  250.920 with references to information from the Twenty Second 
Edition of API RP 2A-WSD and API RP 2SIM. More specifically, in 
paragraph (a), BSEE is replacing the reference to Section 17.3 of API 
RP 2A-WSD with a reference to Section 5.3.4 of API RP 2SIM, all 
references to the term ``assessment categories'' with references to the 
term ``exposure categories,'' and a reference to the term ``A-2 or A-3 
assessment categories'' with a reference to the term ``L-2 or L-3 
exposure categories.'' In paragraph (b), the final rule replaces the 
reference to ``Sections 17.2.1 through 17.2.5 of API RP 2A-WSD'' with a 
reference to ``Section 8.3 of API RP 2SIM.'' In paragraph (c), the 
final rule replaces the reference to ``RP 2A-WSD'' with a reference to 
``API RP 2SIM.'' In paragraph (d), the final rule replaces the 
reference to ``API RP 2A-WSD Section 17.6'' with a reference to ``API 
RP 2SIM Sections 9 through 12.'' In paragraph (e), the final rule 
replaces the reference to ``API RP 2A-WSD'' with a reference to ``API 
RP 2SIM.'' In paragraph (f), the final rule replaces the reference to 
``Section 17, Assessment of Existing Platforms, of API RP 2A-WSD'' with 
a reference to ``API RP 2SIM,'' and the reference to ``API RP 2A-WSD, 
Section 15, Re-use'' with a reference to ``API RP 2A-WSD, Section 18, 
Re-use.''
    Summary of comments: As discussed earlier, a few commenters noted 
that BSEE's update to the Twenty Second Edition of API RP 2A-WSD, as 
well as the incorporation by reference to the First Edition of API RP 
2SIM, will disrupt some of the language in Sec.  250.920, which must be 
reconciled by replacing the reference to Section 17 on platform 
assessments and Section 15 on platform re-use in the previous edition 
of API RP 2A-WSD with the applicable sections in API RP 2SIM. API RP 
2SIM now addresses platform assessments of existing platforms and 
platform re-use, which are no longer addressed in the newer edition of 
API RP 2A-WSD.
    Response: BSEE agrees with the commenters' recommendation. The 
applicable sections of the Twenty Second Edition of API RP 2A-WSD and 
the First Edition of API RP 2SIM will be inserted to Sec.  250.920 as 
described in the Summary of final rule revisions section above. For 
example, as it pertains to paragraph (a), API transitioned the 
assessment categories defined in Section 17.3 of the Twenty Second 
Edition of API RP 2A-WSD to Section 5.3.4 of API RP 2SIM. As it 
pertains to paragraph (d), API transitioned the Section 17.6 of API RP 
2A-WSD, which addressed assessment of metocean, seismic, and ice 
criteria/loads to Sections 9 through 12 of API RP 2SIM, which addresses 
assessment of metocean, fatigue, seismic, and ice loading. As with the 
changes to Sec.  250.919, the changes to Sec.  250.920 are for 
consistency purposes, to ensure all the regulations in part 250 align 
with BSEE's incorporation by reference of the Twenty Second Edition of 
API RP 2A-WSD and the First Edition of API RP 2SIM into the 
regulations.

Subpart J--Pipelines and Pipeline Rights-of-Way

Sec.  250.1002 Design Requirements for DOI Pipelines
Summary of Proposed Rule Revisions
    BSEE proposed to update paragraph (b) of Sec.  250.1002 by changing 
existing references from ANSI/API Spec. 6A to API Specification 6A, 
ANSI/API Spec 6D to API Specification 6D, and API RP 2RD to API 
Standard 2RD, to align with the titles of these documents as 
incorporated in paragraph (e) of Sec.  250.198.
Summary of Final Rule Revisions
    BSEE did not receive any comments on this proposed section. 
However, as previously discussed above, BSEE is not incorporating by 
reference API Standard 2RD as part of the final rule. Therefore, the 
reference to API RP 2RD will remain in the regulations and the final 
rule does not change the existing reference to this standard in 
paragraph (b) of Sec.  250.1002.

Subpart L--Oil and Gas Production Measurement, Surface Commingling, and 
Security

Sec.  250.1202 Liquid Hydrocarbon Measurement
Summary of Proposed Rule Revisions
    BSEE proposed to make extensive changes to Sec.  250.1202, which 
included:
    <bullet> Revising paragraph (a)(2) of Sec.  250.1202 by:
    [cir] Changing existing references to three standards under Sec.  
250.1202(a)(2) to align with updates to the incorporation by reference 
of these standards in paragraph (e) of Sec.  250.198:
    [ssquf] API MPMS Chapter 4, Section 8 to API MPMS Chapter 4.8;
    [ssquf] API MPMS Chapter 5, Section 8 to API MPMS Chapter 5.8; and
    [ssquf] API MPMS Chapter 11, Section 1 to API MPMS Chapter 11.1.
    [cir] Adding references to 40 standards as new paragraphs under 
Sec.  250.1202(a)(2) to either align with the incorporation by 
reference of a standard for the first time, align with the update to 
the existing incorporation by reference of a standard, or to clarify 
the longstanding use of a standard that has already incorporated by 
reference (without being updated) in paragraph (e) of Sec.  250.198:
    [ssquf] API MPMS Chapter 2, Section 2A;
    [ssquf] API MPMS Chapter 2, Section 2B;
    [ssquf] API MPMS Chapter 2.2E, Part 1;
    [ssquf] API MPMS Chapter 2.2F, Part 2;
    [ssquf] API MPMS Chapter 3.1A;
    [ssquf] API MPMS Chapter 3, Section 1B;
    [ssquf] API MPMS Chapter 4, Section 1;
    [ssquf] API MPMS Chapter 4, Section 2;
    [ssquf] API MPMS Chapter 3, Section 1B;
    [ssquf] API MPMS Chapter 4, Section 1;
    [ssquf] API MPMS Chapter 4, Section 2;
    [ssquf] API MPMS Chapter 4, Section 4;
    [ssquf] API MPMS Chapter 4.5;
    [ssquf] API MPMS Chapter 4, Section 6;
    [ssquf] API MPMS Chapter 4, Section 7;
    [ssquf] API MPMS Chapter 4.8;
    [ssquf] API MPMS Chapter 4, Section 9, Part 2;
    [ssquf] API MPMS Chapter 5, Section 1;
    [ssquf] API MPMS Chapter 5, Section 2;
    [ssquf] API MPMS Chapter 5, Section 3;
    [ssquf] API MPMS Chapter 5, Section 4;
    [ssquf] API MPMS Chapter 5, Section 5;
    [ssquf] API MPMS Chapter 5, Section 6;

[[Page 35330]]

    [ssquf] API MPMS Chapter 5.8;
    [ssquf] API MPMS Chapter 6.1;
    [ssquf] API MPMS Chapter 6, Section 6;
    [ssquf] API MPMS Chapter 6, Section 7;
    [ssquf] API MPMS Chapter 7.1;
    [ssquf] API MPMS Chapter 7.3;
    [ssquf] API MPMS Chapter 8.1;
    [ssquf] API MPMS Chapter 8.2;
    [ssquf] API MPMS Chapter 8.3;
    [ssquf] API MPMS Chapter 9.1;
    [ssquf] API MPMS Chapter 9.2;
    [ssquf] API MPMS Chapter 9.4;
    [ssquf] API MPMS Chapter 10, Section 1;
    [ssquf] API MPMS Chapter 10.2;
    [ssquf] API MPMS Chapter 10.3;
    [ssquf] API MPMS Chapter 10.4;
    [ssquf] API MPMS Chapter 10.9;
    [ssquf] API MPMS Chapter 11, Section 1;
    [ssquf] API MPMS Chapter 12.2;
    [ssquf] API MPMS Chapter 12, Section 2, Part 4;
    [ssquf] API MPMS Chapter 20, Section 1;
    [ssquf] API MPMS Chapter 21, Section 2;
    [ssquf] API MPMS Chapter 21, Addendum to Section 2;
    [ssquf] API Standard 2555; and
    [ssquf] API RP 2556.
    [ssquf] API MPMS Chapter 11.1
    [cir] Removing references to API MPMS Chapter 12, Section 2, Part 3 
since this document was withdrawn and superseded by API MPMS Chapter 
12.2;
    [cir] Removing the reference to API RP 86 since the document has 
been superseded by API MPMS Chapter 20.3; and
    [cir] Renumbering the regulatory citations of the references under 
Sec.  250.1202(a)(2) to accommodate for all the standards that would be 
added to or removed from this section.
    <bullet> Updating paragraph (a)(3) of Sec.  250.1202 by:
    [cir] Changing existing references to two standards under Sec.  
250.1202(a)(3) to align with updates to the incorporation by reference 
of these standards in paragraph (e) of Sec.  250.198:
    [ssquf] API MPMS Chapter 4, Section 8 to API MPMS Chapter 4.8; and
    [ssquf] API MPMS Chapter 5, Section 8 to API MPMS Chapter 5.8.
    [cir] Removing the reference to API MPMS Chapter 12, Section 2, 
Part 3 since the document has been withdrawn and superseded by API MPMS 
Chapter 12.2;
    [cir] Adding references to API MPMS Chapter 11.2.2 and API MPMS 
Chapter 11, Section 2, Part 2 to clarify the longstanding use of these 
documents that have already been incorporated into the current 
regulations;
    [cir] Removing the reference to API RP 86 since the document has 
been superseded by API MPMS Chapter 20.3; and
    [cir] Renumbering the regulatory citations of the references under 
Sec.  250.1202(a)(3) to accommodate for all the standards that would be 
added to or removed from this section.
    <bullet> Updating paragraph (5) of Sec.  250.1202(d) by replacing 
the requirement for operators to submit copies of all meter proving 
reports for royalty meters to the Regional Supervisor monthly within 15 
days after the end of the month with a requirement for operators to use 
procedures and proving or meter factors according to API MPMS Chapter 
4, Section 1. This would clarify the longstanding use of this standard 
that has already been incorporated into the current regulations:
    <bullet> Updating paragraph (f)(1) of Sec.  250.1202 by:
    [cir] Adding a reference to API MPMS Chapter 4, Section 4 to 
clarify the longstanding use of this document that has already been 
incorporated into the current regulations; and
    [cir] Renumbering the regulatory citations of the references under 
Sec.  250.1202(f)(1) to accommodate for the addition of API MPMS 
Chapter 4, Section 4 to list of standards referenced in this section;
    <bullet> Updating paragraph (g)(1) of Sec.  250.1202 by changing an 
existing reference from API MPMS Chapter 4, Section 8 to API MPMS 
Chapter 4.8 to align with updates to the incorporation by reference of 
this standard in paragraph (e) of Sec.  250.198.
    <bullet> Updating paragraph (h) of Sec.  250.1202 by adding a new 
paragraph (5) under Sec.  250.1202(h) requiring operators to use 
procedures and proving or meter factors according to API MPMS Chapter 
4, Section 6, which would clarify the longstanding use of this standard 
that has already been incorporated into the current regulations; and 
finally
    <bullet> Updating paragraph (l)(4) of Sec.  250.1202 by adding 
references to API MPMS Chapter 2, Section 2A, API MPMS Chapter 2, 
Section 2B, and API MPMS Chapter 3, Section 1B to the list of standards 
operators must comply with, which would clarify the longstanding use of 
these standards that have already been incorporated into the current 
regulations.
Summary of Final Rule Revisions
    BSEE received and considered many comments on the standards 
mentioned in Sec.  250.1202 of the proposed rule. In the final rule, 
BSEE is moving forward with the provisions it had proposed, except for 
the following changes that were made in response to comments:
    <bullet> Maintain the reference to API MPMS Chapter 12, Section 2, 
Part 3 and API MPMS Chapter 12, Section 2, Part 4 currently in Sec.  
250.1202(a)(2) and add references to API MPMS Chapter 12, Section 2, 
parts 1 and 2 in Sec.  250.1202(a)(2) to clarify that flow computer 
systems at BSEE designated FMPs in existence as of August 10, 2026 may 
comply with API MPMS Chapter 12, Section 2, parts 1, 2, and 3 in lieu 
of complying API MPMS Chapter 12.2 until no later than August 11, 2031. 
However, those FMPs must be in compliance with API MPMS Chapter 12.2 by 
August 11, 2031. The addition of API MPMS Chapter 12, Section 2, parts 
1 and 2 to Sec.  250.1202(a)(2) will clarify the longstanding use of 
these standards that have already been incorporated into the current 
regulations.
    <bullet> Not move forward with the Bureau's proposal to incorporate 
by reference API MPMS Chapter 2.2E, Part 1 and API MPMS Chapter 2.2F, 
Part 2 for the first time into the regulations.
    In addition to the changes in response to comments, BSEE is also 
taking the following actions as part of the final rule:
    <bullet> Not moving forward with the change to an existing 
reference in Sec.  250.1202(a)(2) from API MPMS Chapter 11, Section 1 
to API MPMS Chapter 11.1. BSEE inadvertently included this change in 
the proposed rule. A May 2019 addendum to API MPMS Chapter 11, Section 
1 is being incorporated by reference as part of this rulemaking. 
Therefore, BSEE will maintain the reference to this more current 
standard in Sec.  250.1202(a)(2) and throughout Sec.  250.1202. The 
existing edition of API MPMS Chapter 11.1 currently in the regulations, 
which BSEE is maintaining as part of this final rule, was reaffirmed in 
March 1997.
    <bullet> Not moving forward with the update to paragraph (5) of 
Sec.  250.1202(d), which will have replaced the requirement for 
operators to submit copies of all meter proving reports for royalty 
meters to the Regional Supervisor monthly within 15 days after the end 
of the month with a requirement for operators to use procedures and 
proving or meter factors according to API MPMS Chapter 4, Section 1. 
BSEE inadvertently included this change in the proposed rule. The 
existing reporting requirement is still appropriate to maintain because 
Sec.  250.1202(d) addresses requirements for liquid hydrocarbon royalty 
meter provings. API MPMS Chapter 4, Section 1 is already referenced in 
paragraph (2) of Sec.  250.1202(a) and is merely an introduction to 
proving systems.

[[Page 35331]]

    <bullet> Modifying proposed paragraph (5) of Sec.  250.1202(d) to 
clarify how BSEE views the applicability of API MPMS Chapter 4, Section 
6 and its longstanding use in the regulations, which is already 
incorporated into the current regulations. BSEE will clarify that 
proving systems that employ the dual chronometry method of pulse 
interpolation must be compliant with API MPMS Chapter 4, Section 6. The 
revised language recognizes that not all offshore proving systems will 
require the use of dual chronometry to achieve the required uncertainty 
of <plus-minus>0.01 percent.
    Aside from the changes just listed, BSEE is also making an 
administrative correction in Sec.  250.1201 to eliminate confusion on 
the proper way to interpret certain provisions in Sec.  250.1202. BSEE 
is removing the term ``API MPMS'' from Sec.  250.1201, which is a 
section that lists and defines certain terms used in Subpart L. Section 
250.1201 defines ``API MPMS'' to mean the American Petroleum 
Institute's Manual of Petroleum Measurement Standards, chapters 1, 20, 
and 21. It is not necessary to define the term API MPMS since existing 
Sec.  250.1202 (and this rule) already specifies the API MPMS 
publications operators must comply with for liquid hydrocarbon 
measurement. There are some cases, however, particularly in Sec.  
250.1202(b)(4)(i) and Sec.  250.1202(k)(1), where the term API MPMS is 
used, but there is no reference to a specific API MPMS publication in 
these paragraphs. A reader could interpret paragraphs (b)(4)(i) and 
(k)(1) to mean that regulatory compliance would be achieved if an 
operator follows API MPMS chapters 1, 20, and 21. Paragraphs (b)(4)(i) 
and (k)(1), respectively, address the location of sampling points 
immediately upstream or downstream of a meter or divert valve and the 
sampling frequency for allocation meters. These topics are more 
appropriately addressed in API MPMS chapters 8.1 and 8.2, and not 
chapters 1, 20, or 21. Therefore, BSEE will clarify in the final rule 
that, under paragraph (b)(4)(i), operators must comply with API MPMS 
Chapter 8.2 and, under paragraph (k)(1), operators must comply with API 
MPMS Chapter 8.1 or API MPMS Chapter 8.2. Furthermore, the references 
to chapters 1, 20, and 21 in the definition of API MPMS does not 
conform the OFR's drafting requirements for refencing a technical 
document.
    Finally, this final rule will reference 40 standards in Sec.  
250.1202(a)(2) because a particular document is either being 
incorporated by reference for the first time into the regulations, has 
already been incorporated by reference into the regulations but is 
being updated as part of this final rule, or BSEE is adding an express 
reference to a standard to clarify the longstanding use of a document 
that has already been incorporated into the current regulations and is 
not being updated as part of this final rule. The standards being 
referenced in Sec.  250.1202(a)(2) that are being incorporated by 
reference for the first time into the regulations include:
    [cir] API MPMS Chapter 4, Section 9, Part 2;
    [cir] API MPMS Chapter 7.1;
    [cir] API MPMS Chapter 7.3;
    [cir] API MPMS Chapter 8.3;
    [cir] API MPMS Chapter 9.4; and
    [cir] API MPMS Chapter 12.2.
    The standards being referenced in Sec.  250.1202(a)(2), (b)(3), 
(f)(1), (g), or (l)(4) that have already been incorporated into the 
current regulations, but are being updated as part of this final rule 
include:
    [cir] API MPMS Chapter 3.1A;
    [cir] API MPMS Chapter 4, Section 2;
    [cir] API MPMS Chapter 4.5;
    [cir] API MPMS Chapter 4, Section 7;
    [cir] API MPMS Chapter 4.8;
    [cir] API MPMS Chapter 5, Section 1;
    [cir] API MPMS Chapter 5.8;
    [cir] API MPMS Chapter 6.1;
    [cir] API MPMS Chapter 8.1;
    [cir] API MPMS Chapter 8.2;
    [cir] API MPMS Chapter 9.1;
    [cir] API MPMS Chapter 9.2;
    [cir] API MPMS Chapter 10.2;
    [cir] API MPMS Chapter 10.3;
    [cir] API MPMS Chapter 10.4;
    [cir] API MPMS Chapter 10.9;
    [cir] API MPMS Chapter 20, Section 1;
    [cir] API Standard 2555; and
    [cir] API RP 2556.
    The standards being referenced in Sec.  250.1202(a)(2), (b)(3), 
(f)(1), (h)(5), or (l)(4) merely to have an express reference that 
clarifies the longstanding use of a document that has already been 
incorporated into the current regulations, but is not being updated as 
part of this final rule, include:
    [cir] API MPMS Chapter 2, Section 2A;
    [cir] API MPMS Chapter 2, Section 2B;
    [cir] API MPMS Chapter 3, Section 1B;
    [cir] API MPMS Chapter 3.1A;
    [cir] API MPMS Chapter 4, Section 1;
    [cir] API MPMS Chapter 4, Section 2;
    [cir] API MPMS Chapter 4, Section 4;
    [cir] API MPMS Chapter 4.5;
    [cir] API MPMS Chapter 4, Section 6;
    [cir] API MPMS Chapter 5, Section 2;
    [cir] API MPMS Chapter 5, Section 3;
    [cir] API MPMS Chapter 5, Section 4;
    [cir] API MPMS Chapter 5, Section 5;
    [cir] API MPMS Chapter 6, Section 6;
    [cir] API MPMS Chapter 6, Section 7;
    [cir] API MPMS Chapter 11.1
    [cir] API MPMS Chapter 12, Section 2, Part 1; and
    [cir] API MPMS Chapter 12, Section 2, Part 2.
    In the final rule, BSEE will also renumber the regulatory 
designations to a majority of the standards referenced in Sec.  
250.1202(a)(2) in the proposed rule due to the Bureau's decision:
    <bullet> To not move forward w

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Indexed from Federal Register on June 10, 2026.

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