Rule2025-00708

Cybersecurity in the Marine Transportation System

Primary source

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
January 17, 2025
Effective
July 16, 2025

Issuing agencies

Homeland Security DepartmentCoast Guard

Abstract

The Coast Guard is updating its maritime security regulations by establishing minimum cybersecurity requirements for U.S.-flagged vessels, Outer Continental Shelf facilities, and facilities subject to the Maritime Transportation Security Act of 2002 regulations. This final rule addresses current and emerging cybersecurity threats in the marine transportation system by adding minimum cybersecurity requirements to help detect risks and respond to and recover from cybersecurity incidents. These include requirements to develop and maintain a Cybersecurity Plan, designate a Cybersecurity Officer, and take various measures to maintain cybersecurity within the marine transportation system. The Coast Guard is also seeking comments on a potential delay for the implementation periods for U.S.-flagged vessels.

Full Text

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<title>Federal Register, Volume 90 Issue 11 (Friday, January 17, 2025)</title>
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[Federal Register Volume 90, Number 11 (Friday, January 17, 2025)]
[Rules and Regulations]
[Pages 6298-6453]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-00708]



[[Page 6297]]

Vol. 90

Friday,

No. 11

January 17, 2025

Part IV





Department of Homeland Security





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Coast Guard





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33 CFR Parts 101 and 160





Cybersecurity in the Marine Transportation System; Final Rule

Federal Register / Vol. 90, No. 11 / Friday, January 17, 2025 / Rules 
and Regulations

[[Page 6298]]



DEPARTMENT OF HOMELAND SECURITY

Coast Guard

33 CFR Parts 101 and 160

[Docket No. USCG-2022-0802]
RIN 1625-AC77


Cybersecurity in the Marine Transportation System

AGENCY: Coast Guard, DHS.

ACTION: Final rule; request for comments.

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SUMMARY: The Coast Guard is updating its maritime security regulations 
by establishing minimum cybersecurity requirements for U.S.-flagged 
vessels, Outer Continental Shelf facilities, and facilities subject to 
the Maritime Transportation Security Act of 2002 regulations. This 
final rule addresses current and emerging cybersecurity threats in the 
marine transportation system by adding minimum cybersecurity 
requirements to help detect risks and respond to and recover from 
cybersecurity incidents. These include requirements to develop and 
maintain a Cybersecurity Plan, designate a Cybersecurity Officer, and 
take various measures to maintain cybersecurity within the marine 
transportation system. The Coast Guard is also seeking comments on a 
potential delay for the implementation periods for U.S.-flagged 
vessels.

DATES: This final rule is effective July 16, 2025.
    Comment period for solicited comments: Comments on a potential 2-
to-5-year delay for the implementation periods for U.S.-flagged vessels 
in Section VII of this preamble must be submitted by March 18, 2025.

ADDRESSES: 
    Docket: To view documents mentioned in this preamble as being 
available in the docket, go to <a href="http://www.regulations.gov">www.regulations.gov</a>, type USCG-2022-0802 
in the search box, and click ``Search.'' Next, in the Document Type 
column, select ``Supporting & Related Material.''
    Comment period for solicited additional comments: You may submit 
comments on the implementation periods for U.S.-flagged vessels 
discussed in Section VII of this preamble via the electronic Federal 
Docket Management System. To do so, go to <a href="http://www.regulations.gov">www.regulations.gov</a>, type 
USCG-2022-0802 in the search box and click ``Search.'' Next, look for 
this document in the Search Results column, and click on it. Then click 
on the Comment option. If you cannot submit your material by using 
<a href="http://www.regulations.gov">www.regulations.gov</a>, call or email the person in the FOR FURTHER 
INFORMATION CONTACT section of this final rule for alternate 
instructions.

FOR FURTHER INFORMATION CONTACT: For information about this document, 
email <a href="/cdn-cgi/l/email-protection#9dd0c9cedee4fff8efcfe8f1f8dde8eefefab3f0f4f1"><span class="__cf_email__" data-cfemail="337e6760704a51564161465f5673464050541d5e5a5f">[email&#160;protected]</span></a> or call Commander Brandon Link, Office of 
Port and Facility Compliance, 202-372-1107; or Commander Christopher 
Rabalais, Office of Design and Engineering Standards, 202-372-1375.

SUPPLEMENTARY INFORMATION:

Table of Contents for Preamble

I. Abbreviations
II. Executive Summary
III. Basis and Purpose
    A. Cybersecurity Threats
    B. Legislation, Regulations, and Policy
    C. Legal Authority
IV. Background
    A. The Current State of Cybersecurity in the MTS
    B. Current MTSA Regulations Related to Cybersecurity
V. Discussion of Comments and Changes
VI. Discussion of the Final Rule
VII. Request for Comment
VIII. Regulatory Analyses
    A. Regulatory Planning and Review
    B. Small Entities
    C. Assistance for Small Entities
    D. Collection of Information
    E. Federalism
    F. Unfunded Mandates
    G. Taking of Private Property
    H. Civil Justice Reform
    I. Protection of Children
    J. Indian Tribal Governments
    K. Energy Effects
    L. Technical Standards
    M. Environment
    N. Congressional Review Act

I. Abbreviations

ABS American Bureau of Shipping
The Act James M. Inhofe National Defense Authorization Act for 
Fiscal Year 2023 (Pub. L. 117-263)
AGCS Allianz Global Corporate and Specialty
AIS Automatic Identification System
AMSCs Area Maritime Security Committees
ANPRM Advance notice of proposed rulemaking
ASP Alternative Security Program
BLS Bureau of Labor Statistics
BSEE Bureau of Safety and Environmental Enforcement
CEA Council of Economic Advisors
CFR Code of Federal Regulations
CGCSO Coast Guard Cyber Strategic Outlook
CG-CVC Coast Guard Office of Commercial Vessel Compliance
CGCYBER U.S. Coast Guard Cyber Command
CG-ENG Coast Guard Office of Design and Engineering Standards
CG-FAC Coast Guard Office of Port and Facility Compliance
CIRC Cyber Incident Reporting Council
CIRCIA Cyber Incident Reporting for Critical Infrastructure Act of 
2022
CISA Cybersecurity and Infrastructure Security Agency
CISO Chief Information Security Officer
COTP Captain of the Port
CPG Cybersecurity Performance Goal
CRM Cyber risk management
CSF Cybersecurity Framework
CSO Company Security Officer
CSRC Computer Security Resource Center
CVC-WI Coast Guard's Office of Commercial Vessel Compliance's Work 
Instruction
CySO Cybersecurity Officer
DC3 Defense Cyber Crimes Center
DCISE Defense Industrial Base Collaborative Information Sharing 
Environment
DHS Department of Homeland Security
DOC Document of Compliance
DoD Department of Defense
FBI Federal Bureau of Investigation
FEMA Federal Emergency Management Agency
FR Federal Register
FRFA Final Regulatory Flexibility Analysis
FSA Facility Security Assessment
FSO Facility security officer
FSP Facility security plan
GPS Global Positioning System
HMI Human-machine interface
IACS International Association of Classification Societies
ICR Information collection request
IEc Industrial Economics, Incorporated
IMO International Maritime Organization
IP internet protocol
INMARSAT International Maritime Satellite
IRFA Initial Regulatory Flexibility Analysis
ISM International Safety Management
IT Information technology
KEV Known exploited vulnerability
LANTAREA Coast Guard Atlantic Area
MARSEC Maritime Security
MCAAG Maritime Cybersecurity Assessment and Annex Guide
MISLE Marine Information for Safety and Law Enforcement
MMC Merchant Mariner Credential
MODU Mobile offshore drilling unit
MSC Marine Safety Center
MSC-FAL International Maritime Organization's Marine Safety 
Committee and Facilitation Committee
MTS Marine transportation system
MTSA Maritime Transportation Security Act of 2002
NAICS North American Industry Classification System
NIST National Institute of Standards and Technology
NMSAC National Maritime Security Advisory Committee
NPRM Notice of proposed rulemaking
NRC National Response Center
NVIC Navigation and Vessel Inspection Circular
OCMI Officer in Charge, Marine Inspection
OCS Outer Continental Shelf
OCSLA Outer Continental Shelf Lands Act of 1953
OEWS Occupational Employment and Wage Statistics
OMB Office of Management and Budget

[[Page 6299]]

OSV Offshore supply vessel
OT Operational technology
PACS Physical Access Control Systems
PII Personally identifiable information
PRC People's Republic of China
PVA Passenger Vessel Association
QCEW Quarterly Census of Employment and Wages
RA Regulatory analysis
RO Recognized Organization
Sec.  Section
SBA Small Business Administration
SME Subject matter expert
SMS Safety management system
SOLAS the International Convention for Safety of Life at Sea, 1974
TSA Transportation Security Administration
TSI Transportation security incident
UR Unified Requirement
U.S.C. United States Code
VHF Very high frequency
VSA Vessel Security Assessment
VSO Vessel Security Officer
VSP Vessel security plan

II. Executive Summary

    The maritime industry faces increasing cybersecurity threats as it 
increasingly relies on cyber-connected systems. The purpose of this 
final rule is to safeguard the marine transportation system (MTS) 
against current and emerging threats associated with cybersecurity by 
adding minimum cybersecurity requirements to 33 CFR part 101 to help 
detect, respond to, and recover from cybersecurity risks that may cause 
transportation security incidents (TSIs). This final rule addresses 
risks from the increased interconnectivity and digitalization of the 
MTS and current and emerging cybersecurity threats to maritime security 
in the MTS with the additional minimum requirements specified below.
    First, this final rule requires that owners or operators of U.S.-
flagged vessels, facilities, or Outer Continental Shelf (OCS) 
facilities required to have a security plan under 33 CFR parts 104, 
105, and 106 to develop and maintain a Cybersecurity Plan and Cyber 
Incident Response Plan. The Cybersecurity Plan must include seven 
account security measures for owners or operators of a U.S.-flagged 
vessel, facility, or OCS facility: (1) enabling of automatic account 
lockout after repeated failed log in attempts on all password protected 
information technology (IT) systems; (2) changing default passwords (or 
implementing other compensating security controls if unfeasible) before 
using any IT or operational technology (OT) systems; (3) maintaining a 
minimum password strength on all IT and OT systems technically capable 
of password protection; (4) implementing multifactor authentication on 
password-protected IT and remotely accessible OT systems; (5) applying 
the principle of least privilege to administrator or otherwise 
privileged accounts on both IT and OT systems; (6) maintaining separate 
user credentials on critical IT and OT systems; and (7) removing or 
revoking user credentials when a user leaves the organization.
    The Cybersecurity Plan also must include four device security 
measure requirements: (1) develop and maintain a list of any hardware, 
firmware, and software approved by the owner or operator that may be 
installed on IT or OT systems; (2) ensure that applications running 
executable code are disabled by default on critical IT and OT systems; 
(3) maintain an accurate inventory of network-connected systems 
including those critical IT and OT systems; and (4) develop and 
document the network map and OT device configuration information. In 
addition, the Cybersecurity Plan must include two data security measure 
requirements: (1) ensure that logs are securely captured, stored, and 
protected and accessible only to privileged users, and (2) deploy 
effective encryption to maintain confidentiality of sensitive data and 
integrity of IT and OT traffic when technically feasible. Owners or 
operators of U.S.-flagged vessels, facilities, or OCS facilities must 
also prepare and document a Cyber Incident Response Plan that outlines 
instructions on how to respond to a cyber incident and identifies key 
roles, responsibilities, and decision-makers amongst personnel.
    Owners or operators must also designate a Cybersecurity Officer 
(CySO) who must ensure that U.S.-flagged vessel, facility, or OCS 
facility personnel implement the Cybersecurity Plan and the Cyber 
Incident Response Plan. The CySO must also ensure that the 
Cybersecurity Plan is up to date and undergoes an annual audit. The 
CySO must also arrange for cybersecurity inspections, ensure that 
personnel have adequate cybersecurity training, record and report 
cybersecurity incidents to the owner or operator, and take steps to 
mitigate them.
    With this final rule, the Coast Guard finalizes the requirements 
that were proposed in the notice of proposed rulemaking (NPRM), 
``Cybersecurity in the Marine Transportation System,'' published on 
February 22, 2024.\1\ We also respond to the public comments that we 
received to the NPRM and make several clarifications regarding the 
regulatory framework. The changes we make in this final rule as 
compared to the NPRM include the following:
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    \1\ 89 FR 13404.
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Applicability

    <bullet> Revised the language in Sec.  101.605 to clarify that 
these cyber regulations apply to the owners and operators of U.S.-
flagged vessels, facilities, and OCS facilities required to have 
security plans under 33 CFR parts 104, 105, and 106.
    <bullet> Added text to Sec.  101.660 to clarify that Alternative 
Security Program (ASP) provisions apply to cybersecurity compliance 
documentation.

Definitions

    <bullet> Revised the definition of ``backup'' in Sec.  101.615 to 
remove the phrase ``in a secondary location'' and the implication that 
backups must be stored ``offsite.''
    <bullet> Amended the definition of ``hazardous condition'' in Sec.  
160.202 by incorporating the term ``cyber incident.''
    <bullet> Revised the definition of ``cybersecurity officer'' in 
Sec.  101.615 to clarify that the owner or operator must designate a 
CySO, but that they also may designate an alternate CySO to assist in 
the duties and responsibilities at all times, including at times when 
the CySO may be away from the U.S.-flagged vessel, facility, or OCS 
facility.

Owner or Operator

    <bullet> Amended Sec.  101.620(b)(7) to clarify that all entities 
not subject to 33 CFR 6.16-1 must report all reportable cyber incidents 
to the National Response Center (NRC) and amended Sec.  101.650(g)(1) 
to clarify that all entities not subject to 33 CFR 6.16-1 report 
reportable cyber incidents to the NRC without delay.

Cybersecurity Officer

    <bullet> Removed the term ``major amendment'' from Sec. Sec.  
101.625(d)(13) (as well as 101.630(e)(2)) to prevent ambiguity about 
which amendments require resubmission of the Cybersecurity Plan and for 
consistency with existing requirements in 33 CFR parts 104, 105, and 
106.
    <bullet> Revised Sec.  101.625(d)(10), regarding the CySO's 
responsibilities in reporting incidents, to refer to reportable cyber 
incidents, rather than breaches of security, suspicious activity that 
may result in TSIs. Breaches of security and suspicious activity 
reporting are already addressed under 33 CFR 101.305, whereas these 
regulations are meant to address the reporting of reportable cyber 
incidents as defined in this final rule.

Cybersecurity Plan

    <bullet> Added references to OCS Facility Security Plans (FSPs) in 
Sec.  101.630(a) to clarify that OCS FSPs follow the same

[[Page 6300]]

requirements as Vessel Security Plans (VSPs) and FSPs.
    <bullet> Revised Sec.  101.630(d) to remove the requirement to 
submit a letter certifying that the Cybersecurity Plan meets the 
regulatory requirements.
    <bullet> Revised Sec.  101.630(e)(1)(ii) to clarify that the owner 
and operator will have at least 60 days to submit its proposed 
amendments, and to leave the timeframes for curing any deficiencies up 
to the local Captain of the Port (COTP) identifying them rather than 
requiring that entities cure any deficiencies within the 60-day period.
    <bullet> Revised Sec.  101.630(e)(2) to add new paragraph (e)(2)(i) 
to note that nothing in that section should be construed as limiting 
the owner or operator of a U.S.-flagged vessel, facility, or OCS 
facility from the timely implementation of such additional security 
measures as necessary to address exigent security situations.
    <bullet> Revised Sec.  101.655 to reflect that the Cybersecurity 
Plan must also be submitted to the Coast Guard for review and approval 
within 24 months of the effective date of this final rule, rather than 
during the second annual audit following the effective date.

Drills and Exercises

    <bullet> Revised Sec.  101.635(b)(1) to require two cybersecurity 
drills every 12 months instead of requiring at least one cybersecurity 
drill every 3 months and added ``as required by 33 CFR 104.230, 
105.220, or 106.225,'' where appropriate.

Definitions

    <bullet> Revised Sec.  101.615 to add a definition for the term 
``logs'' and revised Sec.  101.650(c)(1) to refer to the term ``logs'' 
rather than ``data logs,'' consistent with guidance from the National 
Institute of Standards and Technology (NIST) and CISA's CPGs.
    <bullet> Revised Sec.  101.615 to change the definition of 
Cybersecurity Plan and the reference to Plan submission in Sec.  
101.630(a) to clarify that separate submissions are acceptable.
    <bullet> Revised Sec.  101.615 to change the definition of 
multifactor authentication from ``a layered approach to securing data 
and applications where a system requires users to present a combination 
of two or more credentials to verify their identity for login'' to ``a 
layered approach to securing data and applications for a system that 
requires users to present more than one distinct authentication factor 
for successful authentication. Multifactor authentication can be 
performed using a multifactor authenticator or by a combination of 
authenticators that provide different factors. The three authentication 
factors are (1) something you know, (2) something you have, and (3) 
something you are.''

Cybersecurity Measures

    <bullet> Revised Sec.  101.650(a)(1) to remove the reference to OT 
systems and specified that the requirements in Sec.  101.650(e)(1)(i) 
and (iv) are for critical IT and OT systems in accordance with the 
Cybersecurity Performance Goals (CPGs) of the Cybersecurity and 
Infrastructure Security Agency (CISA).
    <bullet> Revised Sec.  101.650(b) to clarify that each owner or 
operator or designated CySO of a U.S.-flagged vessel, facility, or OCS 
facility must ensure the device security measures are in place, 
addressed in Section 6 of the Cybersecurity Plan, and made available to 
the Coast Guard upon request.
    <bullet> Revised Sec.  101.650(c)(2) to specify that effective 
encryption must be deployed to maintain confidentiality of sensitive 
data and integrity of IT and OT traffic and to require that only 
sensitive data be encrypted.
    <bullet> Revised Sec.  101.650(e)(1) to specify that owners and 
operators will need to conduct the cyber assessment within 24 months of 
the effective date of this final rule, which increases the timeframe 
from the originally required 12 months.
    <bullet> Revised Sec.  101.650(e)(1)(i) to limit the identification 
of vulnerabilities to only ``critical'' OT and IT systems rather than 
all OT and IT systems and revised Sec.  101.650(e)(iv) to remove 
``mitigate any unresolved vulnerabilities'' and, instead, require that 
the owner or operator ensure patching or implementation of documented 
compensating controls for all known exploited vulnerabilities (KEVs) in 
critical IT or OT systems, without delay.
    <bullet> Revised Sec.  101.650(e)(2) in this final rule to clarify 
that penetration testing must be completed in conjunction with renewing 
the Cybersecurity Plan and to specify that the CySO must submit a 
letter verifying that the test was conducted, as well as all 
vulnerabilities identified from the penetration testing.
    <bullet> Revised Sec.  101.650(f)(2) to remove the references to 
``breaches'' and ``incidents'' and replaced them with ``reportable 
cyber incidents,'' consistent with the decision to define ``reportable 
cyber incident'' and use that term in these regulations. The definition 
of ``reportable cyber incident'' being an incident that leads to, or, 
if still under investigation, can reasonably lead to substantial loss 
of confidentiality, integrity, or availability of a covered information 
system, network, or OT system; (2) disruption or significant adverse 
impact on the reporting entity's ability to engage in business 
operations or deliver goods or services including those that have a 
potential for significant impact on public health or safety or may 
cause serious injury or death; (3) disclosure or unauthorized access 
directly or indirectly of non-public personal information of a 
significant number of individuals; (4) other potential operational 
disruption to critical infrastructure systems or assets; or (5) 
incidents that otherwise may lead to a TSI as defined in 33 CFR 
101.105.
    <bullet> Revised Sec.  101.650(f)(2) to remove the references to 
``breaches'' and ``incidents'' and replaced them with ``reportable 
cyber incidents,'' consistent with the decision to define ``reportable 
cyber incident'' and use that term in these regulations. The definition 
of ``reportable cyber incident'' being an incident that leads to, or, 
if still under investigation, can reasonably lead to substantial loss 
of confidentiality, integrity, or availability of a covered information 
system, network, or OT system; (2) disruption or significant adverse 
impact on the reporting entity's ability to engage in business 
operations or deliver goods or services including those that have a 
potential for significant impact on public health or safety or may 
cause serious injury or death; (3) disclosure or unauthorized access 
directly or indirectly of non-public personal information of a 
significant number of individuals; (4) other potential operational 
disruption to critical infrastructure systems or assets; or (5) 
incidents that otherwise may lead to a TSI as defined in 33 CFR 
101.105.

Noncompliance, Waivers, and Equivalents

    <bullet> Revised Sec.  101.665 to clarify that an owner or 
operator, after completing the required Cybersecurity Assessment, may 
seek a waiver or an equivalence determination for the requirements in 
subpart F consistent with the waiver and equivalence provisions in 33 
CFR parts 104, 105, and 106. A Cybersecurity Assessment is necessary so 
that an owner or operated can identify which requirements are 
unnecessary. These changes ensure consistency with other regulations 
for requesting waiver or equivalence.
    <bullet> Revised Sec.  101.665 to specify that owners or operators 
must notify the Coast Guard when they must temporarily deviate from the 
requirements rather than when they are temporarily unable to meet the 
requirements. This revised text is more consistent with other 
regulations regarding temporary waiver.

[[Page 6301]]

Compliance Dates

    Table 1 shows the phased implementation schedule for this final 
rule. Note that the rule's effective date will be July 16, 2025. In 
Section VII of this preamble, we are requesting public comment on a 
potential 2-to-5-year delay for the implementation periods for U.S.-
flagged vessels.

[[Page 6302]]

[GRAPHIC] [TIFF OMITTED] TR17JA25.006

    The Coast Guard estimates that this final rule creates costs for 
industry and Government of approximately $1.2 billion total and $138.7 
million annualized, discounted at 2 percent (2022 dollars). This 
increased estimate

[[Page 6303]]

from the NPRM is primarily driven by increases to our estimates of 
costs related to cybersecurity drills, exercises, and penetration 
testing. Cost estimates are also increased due to updated affected 
population data. Benefits of this final rule include reduced risk and 
mitigation of cyber incidents to protect impacted entities and 
downstream economic participants, and improved protection of MTS 
business operations to build consumer trust and promote increased 
commerce in the U.S. economy. Additional benefits include improved 
minimum standards of cybersecurity to protect the MTS, which is vital 
to the U.S. economy and U.S. national security, and to avoid supply 
chain disruptions.

III. Basis and Purpose

A. Cybersecurity Threats

    The purpose of this final rule is to safeguard the MTS against 
current and emerging threats associated with cybersecurity by adding 
minimum cybersecurity requirements to 33 CFR part 101 to help detect, 
respond to, and recover from cybersecurity risks that may cause TSIs. 
This final rule addresses current and emerging cybersecurity threats to 
maritime security in the MTS. The maritime industry is undergoing a 
significant transformation that involves the increased use of cyber-
connected systems. While these increasingly interconnected and 
networked systems improve commercial vessel and port facility 
operations, they also bring a new set of challenges affecting design, 
operations, safety, security, training, and the workforce.
    Every day, malicious actors (including, but not limited to, 
individuals, groups, and adversary nations posing a threat) attempt 
unauthorized access to control system devices or networks using various 
communication channels. An example of a successful attempt occurred in 
May 2021, when a Russian-based cybercriminal group, DarkSide, conducted 
a ransomware attack that forced a major pipeline company to go offline, 
resulting in a weeklong shutdown of 5,500 miles of petroleum pipelines 
on the East Coast of the United States. Cybersecurity threats require 
the maritime community to effectively manage constantly changing risks 
to create a safe cyber environment.
    This final rule creates a regulatory environment for cybersecurity 
in the maritime domain for U.S.-flagged vessels, facilities, and OCS 
facilities. Vulnerabilities in the operation of vital systems increase 
the risk of cyber-attacks. Unmitigated cyber-related risks to the 
maritime domain can compromise the critical infrastructure that people 
and companies depend on to fulfill their daily needs and that maintain 
the effective operation of the MTS.
    A 2018 report by the Council of Economic Advisors (CEA) stated that 
``[a] firm with weak cybersecurity imposes negative externalities on 
its customers, employees, and other firms, tied to it through 
partnerships and supply chain relations. In the presence of 
externalities, firms would rationally underinvest in cybersecurity 
relative to the socially optimal level. Therefore, it often falls to 
regulators to devise a series of penalties and incentives to increase 
the level of investment to the desired level.'' \2\
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    \2\ Economic Report of the President Together with the Annual 
Report of the Council of Economic Advisers 323-24 February 2018, 
<a href="https://www.govinfo.gov/content/pkg/ERP-2018/pdf/ERP-2018.pdf">https://www.govinfo.gov/content/pkg/ERP-2018/pdf/ERP-2018.pdf</a>, 
accessed August 12, 2024.
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    In the report, the CEA also emphasized that ``[c]ontinued 
cooperation between the public and private sectors is the key to 
effectively managing cybersecurity risks. . . . The government is 
likewise important in incentivizing cyber protection--for example, by 
disseminating new cybersecurity standards, sharing best practices, 
conducting basic research on cybersecurity, protecting critical 
infrastructures, preparing future employees for the cybersecurity 
workforce, and enforcing the rule of law in cyberspace.'' \3\
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    \3\ Id. at 324-25.
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    Furthermore, the CEA acknowledged that ``[f]irms and private 
individuals are often outmatched by sophisticated cyber adversaries. 
Even large firms with substantial resources committed to cybersecurity 
may be helpless against attacks by sophisticated nation-states.'' \4\ 
As an example, the CEA stated, ``firms that own critical infrastructure 
assets, such as parts of the nation's power grid, may generate 
pervasive negative spillover effects for the wider economy.'' \5\
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    \4\ Id. at 326
    \5\ Id.
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    Lastly, the CEA stated another problem that exists in the 
marketplace is, ``firms' reluctance to share information on cyber 
threats and exposures,'' which ``impairs effective cybersecurity.'' \6\ 
The CEA further stated that ``firms remain reluctant to increase their 
exposure to legal and public affairs risks. The lack of information on 
cyber-attacks and data breaches suffered by other firms may cause less 
sophisticated small firms to conclude that cybersecurity risk is not a 
pressing problem. . . . [T]he lack of data may be stymying the ability 
of law enforcement and other actors to respond quickly and effectively 
and may be slowing the development of the cyber insurance market.'' \7\
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    \6\ Id.
    \7\ Id.
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    This final rule applies to the owners and operators of U.S.-flagged 
vessels required to have a security plan under 33 CFR part 104 
(Maritime Security: Vessels), facilities required to have a security 
plan under 33 CFR part 105 (Maritime Security: Facilities), and OCS 
facilities required to have a security plan under 33 CFR part 106 
(Marine Security: Outer Continental Shelf (OCS) Facilities).

B. Legislation, Regulations, and Policy

    In the Maritime Transportation Security Act of 2002 (MTSA),\8\ 
Congress provided a framework for the Secretary of Homeland Security 
(``Secretary''), acting through the Coast Guard,\9\ and maritime 
industry to identify, assess, and prevent TSIs in the MTS. MTSA vested 
the Secretary with authorities for broad security assessment, planning, 
prevention, and response activities to address TSIs, including the 
authority to require and set standards for FSPs, OCS FSPs, and VSPs, to 
review and approve such plans, and to conduct inspections and take 
enforcement actions.\10\ The Coast Guard's implementing regulations 
address a range of considerations to prevent TSIs to the maximum extent 
practicable \11\ and require, among other general and specific 
measures, security assessments and measures related to radio and 
telecommunication systems, including computer systems and networks.\12\
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    \8\ Pub. L. 107-295, 116 Stat. 2064, November 25, 2002.
    \9\ The Secretary delegated this authority to the Commandant of 
the Coast Guard via Department of Homeland Security (DHS) Delegation 
00170.1(II)(97)(b), Revision No. 01.4.
    \10\ See generally, for example, 46 U.S.C. 70103.
    \11\ See 46 U.S.C. 70103(c)(1).
    \12\ See, for example, 33 CFR 104.300(d)(11), 104.305(d)(2)(v), 
105.300(d)(11), 105.305(c)(1)(v), 106.300(d)(11), 106.305(c)(1)(v) 
and (d)(2)(v).
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    The Coast Guard has also issued additional guidance and policies to 
help regulated entities address potential cyber incidents in FSPs, OCS 
FSPs, and VSPs,\13\ including a cybersecurity risk

[[Page 6304]]

assessment model that was issued in January 2023,\14\ and voluntary 
guidance issued to Area Maritime Security Committees (AMSCs) in July 
2023.\15\ Congress has repeatedly reaffirmed the MTSA framework, 
including through amendments passed in 2016,\16\ 2018,\17\ and 
2021.\18\ In the 2018 amendments, Congress amended MTSA to specifically 
require VSPs, FSPs, and OCS FSPs to include provisions for detecting, 
responding to, and recovering from cybersecurity risks that may cause 
TSIs.\19\ By doing so, Congress explicitly identified cybersecurity 
risk as an area of specific concern in the maritime domain that 
deserved focused governmental regulatory effort. These regulations fall 
squarely within the MTSA authorities that Congress expressly expanded 
to address cybersecurity risk. The regulatory amendments to 33 CFR part 
101 reflect the Coast Guard's view on cybersecurity under MTSA, 
including, but not limited to, recent amendments to MTSA (such as 46 
U.S.C. 70103). The amendments provide more detailed mandatory baseline 
requirements for U.S.-flagged vessels and facilities subject to MTSA.
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    \13\ One of the Coast Guard's guidance documents is the 
Navigation and Vessel Inspection Circular (NVIC) 01-20, Guidelines 
for Addressing Cyber Risks at Maritime Transportation Security Act 
Regulated Facilities (85 FR 16108). This NVIC outlined Coast Guard's 
view on requirements for FSPs and facility security, including 
cybersecurity. A similar understanding with regard to VSPs was 
expressed in the Coast Guard's Office of Commercial Vessel 
Compliance's (CG-CVC) Vessel CRM Work Instruction CVC-WI-027(3), 
Vessel Cyber Risk Management Work Instruction, October 11, 2023, 
<a href="https://www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/CG-CVC/CVC_MMS/CVC-WI-27">https://www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/CG-CVC/CVC_MMS/CVC-WI-27</a>(3)b.pdf, accessed January 6, 2025.
    \14\ See Maritime Cybersecurity Assessment and Annex Guide 
(MCAAG) (January 2023), <a href="https://dco.uscg.mil/Portals/9/CG-FAC/Documents/Maritime%20Cyber%20Assessment%20%20Annex%20Guide%20">https://dco.uscg.mil/Portals/9/CG-FAC/Documents/Maritime%20Cyber%20Assessment%20%20Annex%20Guide%20</a>(MCAAG)_released%2
023JAN2023.pdf, accessed Aug. 12, 2024. The MCAAG was developed in 
coordination with the National Maritime Security Advisory Committee 
(NMSAC), AMSCs, and other maritime stakeholders. The guide serves as 
a resource for baseline Cybersecurity Assessments and Plan 
development and helps stakeholders address vulnerabilities that can 
lead to transportation security incidents.
    \15\ NVIC 09-02, Change 6.
    \16\ Pub. L. 114-120, 130 Stat. 27, February 8, 2016.
    \17\ Pub. L. 115-254, 132 Stat. 3186, October 5, 2018.
    \18\ Pub. L. 116-283, 134 Stat 4754, January 1, 2021.
    \19\ See Pub. L. 115-254, sec. 1805(d)(2) (codified at 46 U.S.C. 
70103(c)(3)(C)).
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    In response to the growing national security threat from malicious 
cyber actions, presidential policy over the last three presidential 
administrations has advanced cybersecurity in the maritime domain. 
Executive Order 13636 of February 12, 2013 (Improving Critical 
Infrastructure Cybersecurity) recognized the Federal Government's role 
to secure our nation's critical infrastructure by working with the 
private sector--including owners and operators of U.S.-flagged vessels, 
facilities, and OCS facilities--to prepare for, prevent, mitigate, and 
respond to cybersecurity threats.\20\
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    \20\ 78 FR 11739, February 19, 2013.
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    To defend against malicious cyber-related activities, Executive 
Order 13694 of April 1, 2015 (Blocking the Property of Certain Persons 
Engaging in Significant Malicious Cyber-Enabled Activities) recognized 
malicious cyber-related activities as an ``extraordinary threat to the 
national security, foreign policy, and economy of the United States,'' 
warranting a national emergency.\21\ The National Emergency with 
Respect to Significant Malicious Cyber-Enabled Activities was extended 
on March 26, 2024.\22\
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    \21\ 80 FR 18077, April 2, 2015. Executive Order 13694 was later 
amended by Executive Order 13757 (82 FR 1, January 3, 2017), which 
outlined additional measures the Federal Government must take to 
address the national emergency identified in Executive Order 13694.
    \22\ 89 FR 21427, March 27, 2024.
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    Executive Order 14028 of May 12, 2021 (Improving the Nation's 
Cybersecurity) also recognized that ``the private sector must adapt to 
the continuously changing threat environment, ensure its products are 
built and operate securely, and partner with the Federal Government to 
foster a more secure cyberspace.'' \23\
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    \23\ 86 FR 26633, May 17, 2021.
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    On July 28, 2021, the President issued the ``National Security 
Memorandum on Improving Cybersecurity for Critical Infrastructure 
Control Systems,'' \24\ which required the Secretary of Homeland 
Security to coordinate with the Secretary of Commerce (through the 
Director of NIST) and other agencies, as appropriate, to develop 
baseline CPGs. These baseline CPGs will further a common understanding 
of the baseline security practices that critical infrastructure owners 
and operators should follow to protect national and economic security, 
as well as public health and safety. CISA's release of the CPGs in 
October 2022 was ``intended to help establish a common set of 
fundamental cybersecurity practices for critical infrastructure, and 
especially help small- and medium-sized organizations kickstart their 
cybersecurity efforts.'' \25\ The Coast Guard relied on CISA's CPGs as 
a benchmark for technical requirements in this final rule.
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    \24\ The White House, National Security Memorandum on Improving 
Cybersecurity for Critical Infrastructure Control Systems, July 28, 
2021, <a href="https://www.whitehouse.gov/briefing-room/statements-releases/2021/07/28/national-security-memorandum-on-improving-cybersecurity-for-critical-infrastructure-control-systems/">https://www.whitehouse.gov/briefing-room/statements-releases/2021/07/28/national-security-memorandum-on-improving-cybersecurity-for-critical-infrastructure-control-systems/</a>, accessed on July 24, 
2023.
    \25\ CISA, ``Cross-Sector Cybersecurity Performance Goals,'' 
<a href="https://www.cisa.gov/cross-sector-cybersecurity-performance-goals">https://www.cisa.gov/cross-sector-cybersecurity-performance-goals</a>, 
accessed August 12, 2024.
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    On February 21, 2024, the President signed Executive Order 14116 
(Amending Regulations Relating to the Safeguarding of Vessels, Harbors, 
Ports, and Waterfront Facilities of the United States), amending 33 CFR 
part 6 regulations, which are issued pursuant to 46 U.S.C. 70051.\26\ 
In that Order, the President found that ``the security of the United 
States is endangered by reasons of disturbance in the international 
relations of the United States that exist as a result of persistent and 
increasingly sophisticated malicious cyber campaigns against the United 
States, and that such disturbances continue to endanger such 
relations.''
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    \26\ 89 FR 13971, February 26, 2024.
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    The Executive Order expanded the regulatory authorities of the 
Coast Guard COTP, a designated officer of the Coast Guard, to address, 
inspect, and search vessels when there is an articulable cybersecurity 
threat; take possession and control of vessels within the territorial 
waters of the United States; and prevent access of things (including 
data, information, network, program, system, or other digital 
infrastructure) to vessels or waterfront facilities whenever it appears 
that such actions are necessary to prevent damage or injury, including 
damage to any data, information, network, program, system, or other 
digital infrastructure on such vessel, or to any vessel, waterfront 
facility, or the waters of the United States.\27\ Furthermore, the 
Commandant's authority was extended to prescribe conditions and 
restrictions relating to waterfront facilities and vessels in port, 
specifically to ``prevent, detect, assess, and remediate an actual or 
threatened cyber incident.'' \28\ The Commandant exercised this 
authority in a February 21, 2024 Maritime Security (MARSEC) 
Directive.\29\
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    \27\ 33 CFR 6.04-5, 6.04-7, and 6.04-8.
    \28\ 33 CFR 6.14-1.
    \29\ Issuance of Maritime Security (MARSEC) Directive 105-4: 
Cyber Risk Management for Ship-to-Shore Cranes Manufactured by 
People's Republic of China Companies, 89 FR 13726, Feb. 23, 2024.
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    The Executive Order also amended the reporting requirement in 33 
CFR part 6 to add CISA and to also require the reporting of actual or 
threatened cyber incidents. The amended 33 CFR 6.16-1 now requires the 
reporting of ``evidence of sabotage, subversive activity, or an actual 
or threatened cyber incident[s] involving or endangering any vessel, 
harbor, port, or waterfront facility'' to the Federal Bureau of 
Investigation (FBI), CISA, and the COTP or their respective 
representatives.\30\

[[Page 6305]]

OCS facilities are not required to report under Part 6.
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    \30\ 89 FR 13971, 13973, February 26, 2024.
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    In 2021, the Coast Guard published its Cyber Strategic Outlook 
(CGCSO) to highlight the importance of managing cybersecurity risks in 
the MTS.\31\ The CGCSO highlighted three lines of effort, or 
priorities, to improve Coast Guard readiness in cyberspace: (1) Defend 
and Operate the Coast Guard Enterprise Mission Platform; (2) Protect 
the MTS; and (3) Operate in and through Cyberspace.\32\ As outlined in 
the CGCSO's second line of effort, ``Protect the MTS,'' the Coast Guard 
has implemented a risk-based regulatory, compliance, and assessment 
regime. We have established minimum requirements for Cybersecurity 
Plans that facilitate the use of international and industry-recognized 
cybersecurity standards to manage cybersecurity risks by owners and 
operators of maritime critical infrastructure.\33\ Specifically, this 
final rule promulgates the Coast Guard's baseline cybersecurity 
regulations for U.S.-flagged vessels and facilities (including OCS 
facilities) subject to MTSA.
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    \31\ U.S. Coast Guard, ``Cyber Strategic Outlook,'' August 2021, 
<a href="https://www.uscg.mil/Portals/0/Images/cyber/2021-Cyber-Strategic-Outlook.pdf">https://www.uscg.mil/Portals/0/Images/cyber/2021-Cyber-Strategic-Outlook.pdf</a>, accessed August 13, 2024.
    \32\ These lines of effort evolved from the three ``strategic 
priorities'' introduced in the Coast Guard's Cyber Strategy, June 
2015. As cyber threats and vulnerabilities evolve, so will the Coast 
Guard's posture. <a href="https://www.dco.uscg.mil/Portals/10/Cyber/Docs/CG_Cyber_Strategy.pdf?ver=nejX4g9gQdBG29cX1HwFdA%3D%3D">https://www.dco.uscg.mil/Portals/10/Cyber/Docs/CG_Cyber_Strategy.pdf?ver=nejX4g9gQdBG29cX1HwFdA%3D%3D</a>, accessed 
August 12, 2024.
    \33\ The Coast Guard is aware that some entities already follow 
industry standards related to cybersecurity. The minimum 
requirements seek to establish a common baseline for all the 
regulated vessels, facilities, and OCS facilities that is not 
incompatible with such standards, recognizing that in some instances 
these minimums may increase a requirement, but in other 
circumstances may already be satisfied. The owner or operator can 
indicate within their Cybersecurity Plan that they are following a 
particular standard and highlight how their compliance with that 
standard satisfies Coast Guard requirements.
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    As noted, in January 2023, the Coast Guard released the Maritime 
Cybersecurity Assessment and Annex Guide (MCAAG). The MCAAG was 
developed through coordination with the National Maritime Security 
Advisory Committee (NMSAC), AMSCs, and other maritime stakeholders, 
consistent with the activities described in section 2(e) of the 
National Institute of Standards and Technology Act (specifically, 15 
U.S.C. 272(e)). The MCAAG provides more detailed recommendations on 
implementing existing MTSA regulations as they relate to computer 
systems and networks. For example, the Coast Guard recommended a Cyber 
Annex Template for stakeholders to address possible cybersecurity 
vulnerabilities and risks.
    This final rule expands and clarifies the information required in 
security plans to remain consistent with 46 U.S.C. 70103(c)(3), 
including section 70103(c)(3)(C)(v), which requires FSPs, OCS FSPs, and 
VSPs to include provisions for detecting, responding to, and recovering 
from cybersecurity risks that may cause TSIs. Some terms we use in the 
MCAAG, such as cybersecurity vulnerability, may have a set definition 
in this final rule.

C. Legal Authority

    The Coast Guard is promulgating these regulations under 43 U.S.C. 
1333(d); 46 U.S.C. 3306, 3703, 70102 through 70104, 70124; and the 
Department of Homeland Security (DHS) Delegation No. 00170.1, Revision 
No. 01.4.
    Section 4 of the Outer Continental Shelf Lands Act of 1953 (OCSLA), 
classified as amended at 43 U.S.C. 1333(d), authorizes the Secretary to 
promulgate regulations with respect to lights and other warning 
devices, safety equipment, and other matters relating to the promotion 
of safety of life and property on the artificial islands, 
installations, and other devices on the OCS thereto. This authority was 
delegated to the Coast Guard by DHS Delegation No. 00170.1(II)(90), 
Revision No. 01.4.
    Section 3306 of Title 46 of the United States Code authorizes the 
Secretary to prescribe necessary regulations for the design, 
construction, alteration, repair, equipping, manning and operation of 
vessels, propulsion machinery, auxiliary machinery, boilers, unfired 
pressure vessels, piping, electric installations, and accommodations 
for passengers and crew. This authority was delegated to the Coast 
Guard by DHS Delegation No. 00170.1(II)(92)(b), Revision No. 01.4.
    Section 3703 of Title 46 of the United States Code authorizes the 
Secretary to prescribe similar regulations relating to tank vessels 
that carry liquid bulk dangerous cargoes, including the design, 
construction, alteration, repair, maintenance, operation, equipping, 
personnel qualification, and manning of the vessels. This authority was 
delegated to the Coast Guard by DHS Delegation No. 00170.1(II)(92)(b), 
Revision No. 01.4.
    Sections 70102 through 70104 of Title 46 of the United States Code 
authorize the Secretary to evaluate for compliance vessel and facility 
vulnerability assessments, security plans, and response plans, which 
must address cybersecurity risks. Section 70124 authorizes the 
Secretary to promulgate regulations to implement Chapter 701, including 
sections 70102 through 70104, dealing with vulnerability assessments 
for the security of vessels and facilities (which include OCS 
facilities); security plans for vessels, facilities, and OCS 
facilities; and response plans for vessels, facilities, and OCS 
facilities. These authorities were delegated to the Coast Guard by DHS 
Delegation No. 00170.1(II)(97)(a) through (c), and (n), Revision No. 
01.4.

IV. Background

A. The Current State of Cybersecurity in the MTS

    The maritime industry is relying increasingly on digital solutions 
for operational optimization, cost savings, safety improvements, and 
more sustainable business. These developments, to a large extent, rely 
on IT systems and OT systems, which also increases potential cyber 
vulnerabilities and risks. Cybersecurity risks result from 
vulnerabilities to vital systems that increase the likelihood of cyber-
attacks on U.S.-flagged vessels, facilities, and OCS facilities.
    Cyber-attacks on critical infrastructure across multiple sectors 
have raised awareness of the need to protect the systems and equipment 
that facilitate operations within the MTS because cyber-attacks have 
the potential to disable the IT and OT on board U.S.-flagged vessels, 
facilities, and OCS facilities. Autonomous vessel technology, automated 
OT, and remotely operated machines provide further opportunities for 
cyber-attackers. These systems and equipment are prime targets for 
cyber-attacks stemming from insider threats, criminal organizations, 
nation state actors, and others.
    Also, the MTS has become increasingly susceptible to cyber-attacks 
due to the growing integration of digital technologies in their 
operations. These types of cyber-attacks can range from altering a 
vessel's navigational systems to disrupting its communication with 
ports, which can lead to delays, accidents, or even potential 
groundings that can potentially disrupt vessel movements and shut down 
port operations, such as loading and unloading cargo. This disruption 
can also negatively affect the MTS by interrupting the transportation 
and commerce of goods, raw resources, and passengers, as well as 
potential military operations when needed.
    An attack that compromises navigational or operational systems can 
pose a serious safety risk. It can result in accidents at sea, 
potential environmental disasters like oil spills,

[[Page 6306]]

and loss of life. The maritime industry is not immune to ransomware 
attacks where cybercriminals are targeting critical systems or data. 
Given the critical nature of marine transportation to global trade, 
continued efforts are being made to improve cybersecurity measures in 
the sector.
    Maritime stakeholders can better detect, respond to, and recover 
from cybersecurity risks that may cause TSIs by adopting a range of 
cyber risk management (CRM) measures, as described in this final rule. 
It is important that the Coast Guard work with the maritime community 
to address both safety and security risks to better facilitate 
operations and to protect MTS entities from creating hazardous 
conditions within ports and waterways. Updating regulations to include 
minimum cybersecurity requirements will strengthen the security posture 
and increase resilience against cybersecurity threats in the MTS.
    In 2017, the International Maritime Organization (IMO) took steps 
to address cybersecurity risks in the shipping industry by publishing 
the Marine Safety Committee/Facilitation Committee (MSC-FAL) Circular 
3, Guidelines on Maritime Cyber Risk Management,\34\ and MSC Resolution 
428(98).\35\ The IMO affirmed that an approved Safety Management System 
(SMS) should involve CRM to manage cybersecurity risks in accordance 
with the objectives and functional requirements of the International 
Safety Management (ISM) Code. An SMS is a structured and documented set 
of procedures enabling company and vessel personnel to effectively 
implement safety and environmental protection policies that are 
specific to that company or vessel.
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    \34\ <a href="https://wwwcdn.imo.org/localresources/en/OurWork/Facilitation/Facilitation/MSC-FAL.1-Circ.3-Rev.1%20-%20Guidelines%20On%20Maritime%20Cyber%20Risk%20Management%20">https://wwwcdn.imo.org/localresources/en/OurWork/Facilitation/Facilitation/MSC-FAL.1-Circ.3-Rev.1%20-%20Guidelines%20On%20Maritime%20Cyber%20Risk%20Management%20</a>(Secretar
iat).pdf, accessed August 13, 2024.
    \35\ See the IMO resolution on CRM: Resolution MSC.428(98), 
Annex 10, ``Maritime Cyber Risk Management in Safety Management 
Systems.'' <a href="https://wwwcdn.imo.org/localresources/en/OurWork/Security/Documents/Resolution%20MSC.428">https://wwwcdn.imo.org/localresources/en/OurWork/Security/Documents/Resolution%20MSC.428</a>(98).pdf, accessed August 13, 
2024.
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    For applicable U.S.-flagged vessels, this final rule establishes a 
baseline level of protection throughout the MTSA-regulated vessel 
fleet. Having regulatory oversight over U.S.-flagged vessels, the Coast 
Guard can ensure these cybersecurity regulations are implemented 
appropriately by approving Cybersecurity Plans and conducting routine 
inspections. As discussed in Section VII of this preamble, the Coast 
Guard requests public comment on a potential 2-to-5-year delay for the 
implementation periods for U.S.-flagged vessels. (See the ADDRESSES 
portion of this preamble, under Comment period for solicited additional 
comments, for instructions on submitting comments.) This final rule 
also applies to facilities regulated by 33 CFR part 105 and OCS 
facilities regulated by 33 CFR part 106.

B. Current MTSA Regulations Related to Cybersecurity

    The MTSA-implementing regulations in 33 CFR parts 101, 103, 104, 
105, and 106 give the Coast Guard the authority to review and approve 
security assessments and plans that apply broadly to the various 
security threats facing the maritime industry. Through the Navigation 
and Vessel Inspection Circular (NVIC) 01-20 \36\ (85 FR 16108, March 
20, 2020), the Coast Guard interpreted 33 CFR parts 105 and 106 as 
requiring owners and operators of facilities and OCS facilities to 
address cybersecurity in their Facility Security Assessments (FSAs) and 
OCS FSAs, as well as in their FSPs and OCS FSPs. The NVIC provides non-
binding guidance on how regulated entities can address these issues.
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    \36\ See footnote 13.
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    This final rule also expands upon the agency's previous actions by 
establishing minimum performance-based cybersecurity requirements for 
the MTS within the MTSA regulations. Similar to the existing 
requirements in 33 CFR parts 104, 105, and 106, the Coast Guard allows 
owners and operators the flexibility to determine the best way to 
implement and comply with these new requirements. Following the 
effective date of this final rule, personnel must complete certain 
training requirements within approximately 6 months, and owners or 
operators must sequentially complete a Cybersecurity Assessment and 
submit the Cybersecurity Plan to the Coast Guard for review and 
approval within 24 months. The Cybersecurity Plan also includes 
designating the CySO. These implementation periods allow sufficient 
time for the owners and operators of applicable U.S.-flagged vessels, 
facilities, and OCS facilities to comply with the requirements of this 
final rule.\37\
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    \37\ Existing general requirements to address cyber issues in 
security plans will continue to apply during this rulemaking.
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V. Discussion of Comments and Changes

    In response to the NPRM we published on February 22, 2024,\38\ we 
received 99 written submissions to our docket. These written 
submissions are available in the public docket for this rulemaking, 
where indicated under the ADDRESSES portion of the preamble, or use the 
direct link <a href="http://www.regulations.gov/docket/USCG-2022-0802">www.regulations.gov/docket/USCG-2022-0802</a>. The Coast Guard 
appreciates the comments from the public, as these insights continue to 
inform Coast Guard actions and programs. Below, we summarize the 
comments and our responses.
---------------------------------------------------------------------------

    \38\ 89 FR 13404.
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Extension of Comment Period and Public Meetings

    The Coast Guard received a number of comments about extending the 
initial comment period of 60 days for additional time to review the 
proposed rule and the impacts. The requests asked for additional time 
ranging from 30 to 90 days, with 30 days being the most common request. 
After considering these comments, we extended the comment period by 30 
days through May 22, 2024.\39\ The Coast Guard determined that the 
extended comment period offered sufficient opportunity for industry 
stakeholders, and the general public to express their feedback on the 
NPRM.
---------------------------------------------------------------------------

    \39\ 89 FR 24751.
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    One commenter requested that we hold a public hearing during which 
they could ask us questions and receive further information before 
submitting a public comment on the NPRM. The Coast Guard did not grant 
this request. Any public meeting that we held would include a 
presentation about the contents of the NPRM and an opportunity for 
members of the public to submit oral comments, but it is unlikely that 
we would have been able to share information materially different than 
the information that was already provided in the published NPRM.
    One commenter requested that the Coast Guard hold a series of 
``industry days'' focused on specific threats to the maritime 
stakeholders.
    This comment was received on May 22, 2024, the day the extended 
comment period closed, which did not allow time to consider this 
request or hold a public meeting or series of ``industry days'' before 
the end of the comment period. Additionally, we had already extended 
the comment period to allow for more time for industry to submit 
comments about specific impacts to the maritime industry. We received 
many comments during that period and have carefully considered them in 
developing this final rule.

[[Page 6307]]

A. General Comments

    Several commenters submitted positive comments. Commenters 
commended us for strengthening cybersecurity and noted that the rule is 
needed, is very important for the marine transportation system, and is 
a ``great idea.'' One commenter supported our inclusion of specific 
proposals regarding device security measures in Sec.  101.650(b). 
Another commenter supported requirements for vulnerability scanning and 
penetration testing. One commenter noted that the increasing 
interconnectivity of ports expands the attack surface and 
vulnerabilities exploitable by cyber actors.
    The Coast Guard agrees with the commenter. We are finalizing this 
regulation to help mitigate these risks.
Out of Scope Comments
    We received several comments that were out of scope for this 
rulemaking. One commenter expressed concern about the ship-to-shore 
cranes manufactured in the People's Republic of China (PRC).
    Specific language to address PRC-manufactured cranes is outside the 
scope of this regulation, which establishes general, baseline 
cybersecurity requirements for regulated entities.
    Another commenter asked for a list of crane manufacturers or 
providers impacted by MARSEC Directive 105-4 related to the PRC-
manufactured cranes.
    The Coast Guard announced the availability of MARSEC Directive 105-
4 on February 23, 2024, which provided actions for owners or operators 
of ship-to-shore cranes manufactured by the PRC to manage cybersecurity 
risks (89 FR 13726). This MARSEC Directive was announced at the same 
time as the NPRM for this final rule, but its requirements are 
separate. Interested parties should refer to the notice of availability 
for MARSEC Directive 105-4.\40\
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    \40\ 89 FR 13726, February 23, 2024.
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    One commenter noted that CPGs specific to the maritime subsector 
should be prioritized. The commenter also inquired about how feasible 
it was to incorporate risk-based assessment processes into the MST 
[Marine Science Technician] ``A'' School curriculum.
    The Coast Guard is not currently working on sector-specific CPGs. 
Entities are welcome to use their preferred references and standards to 
help inform their required Assessments and Plans. ``A'' school 
curricula are outside the scope of this regulation.
Formalizing Training
    One commenter stated that the Coast Guard needs to consider 
continuously monitoring OT devices and asked the Coast Guard to 
formalize training, leverage industry best practices to apply to 
maritime operations, and implement a ``Bug Bounty'' program like that 
of the Department of Defense (DoD).\41\
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    \41\ A ``Bug Bounty'' program is an initiative that rewards 
individuals for reporting bugs and vulnerabilities in software.
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    The commenter did not give additional information or a reason why 
the Coast Guard should formalize the training. While formal training 
can be beneficial, the Coast Guard will not mandate a specific training 
format. It is up to the owners and operators of U.S.-flagged vessels, 
facilities, and OCS facilities to assess the necessary level of 
training based on their unique cyber threats and risks.
    This final rule provides minimum baseline standards. Owners and 
operators are welcome to implement additional cybersecurity measures if 
they wish, including leveraging industry best practices, continuous 
monitoring of OT devices, and establishing processes for vulnerability 
notification such as the ``Bug Bounty'' program. However, these 
additional measures are not required by this final rule.
Identity Protection and Authentication
    Another commenter applauded the inclusion of identity protection 
and authentication practices, and noted that some current practices, 
such as ``bring your own device'' and ``work from anywhere'' models, 
increase the risks of relying on traditional authentication methods and 
further weaken obsolescent legacy security technologies.
    The Coast Guard agrees that the rule's provisions appropriately 
address current cybersecurity risks.
Automated Technologies
    One commenter advised caution regarding ``unchecked reliance'' on 
automated technologies and processes in the maritime industry. The 
commenter also noted the lack of Federal regulations for ``smart'' 
containers. Another commenter recommended that the Coast Guard's 
cybersecurity regulations should require private stakeholders to 
collaborate with DHS to ensure national security and protect American 
dockworkers from cyber-attacks and risks from automated technologies.
    These comments fall outside the scope of the regulations, as our 
intent is not to address specific issues associated with ``smart'' 
containers in particular. This final rule focuses on cybersecurity 
threats and risks that may impact OT and IT systems on board vessels 
and at facilities.
    One commenter noted that some ports and ships are becoming 
``smart'' with use of artificial intelligence, algorithms, and other IT 
solutions. The commenter argued that the proposed regulations fell 
short of addressing the cybersecurity risks of more sophisticated 
systems by only providing minimum baseline requirements.
    These regulations provide minimum baseline requirements that allow 
each owner or operator to customize the Cybersecurity Plan to the needs 
of their organization. We expect that organizations with more 
sophisticated systems, such as those described by the commenter, will 
use the Cybersecurity Assessment to identify their specific 
cybersecurity needs, which will then be accounted for in the Plan. The 
structure of this final rule provides each owner or operator the 
flexibility to customize their Plan based on their own needs and also 
to add other requirements they deem appropriate for their organization.
Additional Inspections
    One commenter recommended that any vessel that visits an 
``adversarial controlled shipyard'' for maintenance or repair should 
necessitate thorough inspections following the maintenance.
    This is outside the scope of this rulemaking. We did not propose 
any requirements for such inspections and do not have any plans to 
pursue them at this time.
Rulemaking Process
    One commenter suggested that issuing an advance notice of proposed 
rulemaking (ANPRM) first would have improved the process for crafting 
these regulations.
    The Coast Guard considered an ANPRM, but ultimately decided that it 
was not necessary for this rulemaking project. We received robust 
comments on the NPRM that provided useful input on the cybersecurity 
regulations we proposed and that we have carefully considered in 
developing this final rule.
    Several commenters stated that the Coast Guard did not engage with 
industry stakeholders before the release of the NPRM.
    While we did not engage with industry on the NPRM specifically 
prior to its release, the Coast Guard regularly engages with MTS 
industry and other stakeholders on cyber and other risks at Government 
agency- or industry-hosted conferences and workshops, and other forums. 
In these engagements, we

[[Page 6308]]

discuss the Coast Guard's current cyber posture in terms of vessel and 
facility compliance with MTSA. Cybersecurity presents challenging 
problems, along with a need to address them promptly to implement 
critical cybersecurity measures.
Port Security Grant Program
    Some commenters requested that the Port Security Grant Program 
account for, or even give prioritization to, smaller facilities to 
address cybersecurity concerns.
    The Coast Guard will seek to work with the Federal Emergency 
Management Agency (FEMA) to further highlight cybersecurity through the 
FEMA-administered Port Security Grant Program. Because we do not manage 
that program, we cannot make any representation about future 
prioritization of grant funds. As noted in FEMA's Fiscal Year 2024 
Notice of Funding Opportunity for this program, all entities subject to 
an Area Maritime Transportation Security Plan, as defined by 46 U.S.C. 
70103(b), may apply for program funding.\42\ Eligible applicants 
include but are not limited to port authorities, facility operators, 
and State, local, and territorial government agencies.\43\ FEMA 
identified enhancing cybersecurity as a key priority for Fiscal Year 
2024.\44\
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    \42\ See FEMA, ``The U.S. Department of Homeland Security (DHS) 
Notice of Funding Opportunity (NOFO) Fiscal Year 2024 Port Security 
Grant Program,'' April 16, 2024, <a href="https://www.fema.gov/print/pdf/node/676012">https://www.fema.gov/print/pdf/node/676012</a>, accessed October 23, 2024.
    \43\ Id. at 14.
    \44\ Id. at 6.
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Coast Guard Experience With Enforcing Cybersecurity
    Some commenters stated that they did not feel that the Coast Guard 
had the expertise to enforce these regulations or to conduct 
cybersecurity inspections. They also stated that the nature of 
personnel rotations among active-duty military meant that members would 
constantly require training, and the Coast Guard could not retain the 
expertise necessary to review and approve the Cybersecurity Plans. Some 
also felt that reviews of the Cybersecurity Plan should be held in a 
centralized location, due to the COTP not having enough cybersecurity 
expertise.
    The Coast Guard maintains a diverse workforce of military and 
civilian personnel to balance the need to maintain institutional 
knowledge while keeping the ability to flexibly assign personnel to a 
wide range of billets and locations. Whether it is knowledge of 
commercial vessel safety regulations, hazardous materials regulations, 
or these new cybersecurity regulations, the Coast Guard will ensure 
adequately trained personnel will be available to enforce these 
regulations, including through reviewing Cybersecurity Plans. Although 
this final rule addresses training requirements for regulated entities 
and not Coast Guard personnel, the Coast Guard will ensure appropriate, 
adequate training is available for the personnel conducting associated 
work and missions. Additionally, the Coast Guard recognizes the comment 
regarding centralized reviews of the Cybersecurity Plans. The Coast 
Guard has not yet identified where ownership of initial and subsequent 
review of Cybersecurity Plans will reside, but will determine that upon 
assessing the process that optimizes resources and expertise. Whatever 
the Coast Guard determines, it will not alter the requirements for 
developing and submitting such Plans.
    In addition, the Coast Guard has significant experience with the 
maritime security of vessels, facilities, and OCS facilities. We have 
specific cybersecurity units and capabilities dedicated to identifying 
threats and risks and to protecting the cybersecurity of the United 
States. We work in partnership with the DoD and other DHS components, 
specifically CISA and the Transportation Security Administration (TSA). 
We are confident that, by leveraging this experience and these 
partnerships, along with additional training, we can enforce the 
requirements in this final rule.
    Some commenters asked if the Coast Guard planned to allow 
Recognized Organizations (ROs) to assist with reviewing Cybersecurity 
Plans.
    The Coast Guard currently does not plan to allow ROs to assist with 
reviewing Cybersecurity Plans, but regulated entities may consult with 
ROs to ensure compliance with this final rule if they choose.

B. Comments Related to the Applicability of This Final Rule

    One commenter asked us to clearly define the scope of the Coast 
Guard's jurisdictional authority to regulate cybersecurity as it 
applies to marine infrastructure.
    As discussed in the legal authority section, the Coast Guard has 
statutory authority under MTSA, as amended and codified at 46 U.S.C. 
chapter 701, to regulate cybersecurity in the MTS. As already long-
established by the existing regulations in 33 CFR subchapter H, MTSA is 
applicable to the vessels, facilities, and OCS facilities that are 
subject to this final rule. The authority to regulate ``cybersecurity 
risk'' was specifically added to MTSA by the Maritime Security 
Improvement Act of 2018.\45\
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    \45\ Pub. L. 115-254, Div. J.
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    One commenter explained that some ports oversee airports under 
their jurisdiction and thus, have dual cybersecurity requirements with 
the Federal Aviation Administration (FAA). The commenter sought 
clarification that new requirements, including incident reporting 
requirements, would not apply to systems that are under the port 
authority's charge but that are unrelated to maritime port activities. 
The commenter expressed concern that, if the Coast Guard rule were to 
apply to all systems under a port authority's charge, many ports would 
have dual reporting requirements for the same incidents--a significant 
inefficiency.
    This final rule is applicable to those facilities currently 
regulated under existing MTSA regulations. By and large, airport 
facilities are not regulated under this rule. If a situation arose 
where a MTSA-regulated entity was potentially subject to conflicting 
requirements from the Federal Aviation Administration--or any other 
agency's requirements--the entity should raise the issue of any 
perceived conflicts with the COTP and that agency's respective point of 
contact so that each agency is aware of the concern and can evaluate if 
there are conflicts for compliance. With respect to incident reporting, 
if there are occurrences where a cybersecurity incident affects systems 
or equipment falling under multiple regulatory jurisdictions, an owner 
or operator will have to ensure all reporting requirements are met. And 
with respect to the rule in general, if appropriate, the Coast Guard, 
acting through the COTP, may recommend the entity consider a request 
for equivalence in order to avoid overlapping requirements.
    Some commenters stated that the United States should not impose 
specific requirements for the flag state on its vessels without 
imposing the same on foreign-flagged vessels. One commenter also 
suggested that U.S.-flagged vessels should be subject to requirements 
no greater than those applied to foreign-flagged vessels with a safety 
management system. The commenter asserted that, once the IMO 
establishes international requirements, a new NPRM should be issued to 
implement these requirements for U.S.-flagged vessels. Other commenters 
said the United States should not impose requirements that deviate from 
international standards, including those

[[Page 6309]]

that are presently being negotiated at the IMO.
    The Coast Guard believes that protecting U.S. national security and 
the nation's sovereign interests is a paramount concern. As the flag 
administration, the United States believes that these baseline 
requirements for U.S.-flagged vessels are important preventive 
measures. Not only will establishing these requirements help protect 
the U.S. commercial fleet from cybersecurity threats, but it will also 
further establish the United States as a leader in this space and 
offers a model for the necessary actions that other flag 
administrations should take with respect to the cybersecurity of 
vessels.
    The Coast Guard acknowledges that this final rule adds new 
requirements on U.S.-flagged vessels. However, the Coast Guard believes 
that proactive cybersecurity regulations are essential for ensuring the 
continued safety, security, and resilience of the domestic MTS. 
Consistent with this approach, the United States is actively engaged in 
international efforts to address maritime cybersecurity at the IMO. The 
Coast Guard believes that extending regulations to foreign-flagged 
vessels at this time while these discussions are ongoing would disrupt 
the established processes for port state control and possibly 
jeopardize U.S. national interests. The Coast Guard may consider 
revising this rule at a later date as the threat environment and 
international standards develop, including after the IMO speaks to 
cybersecurity with additional specificity.
    Multiple commenters requested clarification on how these 
regulations apply to existing U.S.-flagged vessels, facilities, and OCS 
facilities, and stated that it could be difficult for existing vessels 
to meet some requirements. Specifically, concerns were raised about the 
inability to implement data encryption, the feasibility of compliance 
with network segmentation, frequent operator changes, difficulty in 
identifying personnel to fill a specialized position, and the presence 
of minimal computer networks and electronic systems. One commenter 
stated that vessels operating exclusively on inland waters, such as 
barges and towing vessels, have a minimal cyber footprint and should be 
excluded from this rulemaking.
    This final rule is applicable to U.S.-flagged vessels, facilities, 
and OCS facilities, and includes both existing U.S.-flagged vessels, 
facilities, and OCS facilities, as well as any new or future U.S.-
flagged vessels, facilities, and OCS facilities. The Coast Guard 
understands that IT and OT footprints can vary across vessels. As 
discussed in Section VII of this preamble, for the reasons indicated 
below, the Coast Guard requests public comment on a potential 2-to-5-
year delay for the implementation periods for U.S.-flagged vessels, 
which may partially address the commenters' concerns about vessels. 
Conducting the required Cybersecurity Assessment allows for regulated 
entities to determine and not merely speculate about their specific IT 
and OT footprint, including potential vulnerabilities. Even vessels 
with a small IT or OT footprint may still face cybersecurity risks that 
could impact operations, safety, and security, which must then be 
addressed. Some such limitations may be addressed in the Cybersecurity 
Plan. When a regulated entity believes that certain requirements are 
not applicable or they are unable to comply with specific requirements 
within this regulation, they may follow the procedures in Sec.  101.665 
to request a waiver or equivalency.
    While the Coast Guard recognizes that issues such as frequent 
operator changes may result in additional work for a regulated entity, 
this final rule is in line with existing requirements applicable to 
owner or operator changes. The Coast Guard believes that cybersecurity 
training remains crucial for safeguarding the MTS against evolving 
cybersecurity threats. Each new operator introduces a potential 
vulnerability, and, without adequate training, this could compromise 
both IT and OT systems. To mitigate these risks, it is vital that all 
operators, regardless of turnover frequency, are equipped with 
fundamental cybersecurity knowledge and skills. While formal training 
may be appropriate, the Coast Guard is not mandating a format of 
training in this final rule. However, the training would have to, at 
minimum, cover relevant provisions of the Cybersecurity Plan to include 
recognizing, detecting, and preventing cybersecurity threats, and 
reporting cyber incidents to the CySO. When a regulated entity believes 
they are unable to comply with specific requirements within this 
regulation, they may follow the procedures in Sec.  101.665 to request 
a waiver or equivalency.
    Some commenters suggested that the Coast Guard should create a 
separate rulemaking for vessels.
    The Coast Guard is not considering a separate rulemaking for 
vessels at this time. This final rule is consistent with the Coast 
Guard's authority under MTSA as it applies to vessels.
    Some commenters asked that this final rule not apply to vessels 
such as small passenger vessels, towing vessels, and barges, as well as 
to facilities with minimal or no IT and OT footprint. One commenter 
stated that the NPRM outlined cybersecurity procedures broadly 
applicable to many vessels and facilities but failed to consider those 
with minimal computer networks and systems that would not significantly 
impact operations, security, or safety if compromised. Another 
commenter stated that OT systems on vessels are distinct and should be 
assessed separately from shoreside infrastructure, as cyber incidents 
typically impact only one vessel at a time due to segmentation. In 
contrast, shoreside incidents can have wider repercussions. For inland 
vessels, the primary vulnerabilities are personally identifiable 
information (PII) and positional data theft. Thus, the commenter 
recommended a tiered risk system to determine suitable cybersecurity 
measures for vessels.
    The Coast Guard does not agree with changing the applicability of 
this final rule. Developing a definition or standard for ``little or no 
IT and OT footprint'' would be challenging, and the Coast Guard did not 
seek comment on such a definition in this rulemaking. Moreover, the 
Coast Guard is not aware of a definition for ``little or no IT and OT 
footprint'' in other regulations or in other recognized standards.
    Until an Assessment is completed, it would be difficult to know the 
full extent of a regulated entity's IT and OT footprint, and even a 
smaller IT and OT footprint could still allow cybersecurity threats and 
vulnerabilities and could still result in a cyber incident. It is 
necessary for all regulated entities under this final rule to first 
conduct the required Cybersecurity Assessment to determine the extent 
of their IT and OT footprint. Upon completion of that assessment, each 
regulated U.S.-flagged vessel, facility, or OCS facility can then 
develop a Cybersecurity Plan based on the applicable requirements. Even 
if an Assessment identifies only a minimal IT and OT footprint, that 
footprint may still represent levels of risk to the owner or operator, 
as well as the MTS. If the owner or operator finds there are portions 
of these regulations that do not apply to their U.S.-flagged vessel, 
facility, or OCS facility, the Coast Guard offers procedures in Sec.  
101.665 for an owner or operator to request a waiver or equivalence 
determination for the requirements. While an item may be identified by 
an owner or operator as not applicable, and therefore requires a waiver 
request from the requirement, it is necessary to identify that through 
the Cybersecurity Assessment and

[[Page 6310]]

document in a Cybersecurity Plan so that it can be reviewed in the 
future as needed.
    Multiple commenters recommended the Coast Guard coordinate with the 
Bureau of Safety and Environmental Enforcement (BSEE) in the Department 
of the Interior before issuing any cybersecurity requirements for OCS 
facilities because of the shared authorities in OCSLA.
    The Coast Guard and BSEE have a shared mission of ensuring safety 
on the OCS. We work closely together to ensure our requirements are not 
in conflict with each other. The Coast Guard will continue to work with 
BSEE and our other interagency partners to harmonize efforts as 
appropriate and according to OCSLA and any other applicable law.
    One commenter requested clarity about applicability to Sec. Sec.  
104.105(b) and 105.105(b).
    The Coast Guard revised the language in Sec.  101.605 to clarify 
that these cybersecurity regulations apply to the owners and operators 
of U.S.-flagged vessels, facilities, and OCS facilities required to 
have a security plan under parts 104, 105, and 106. The text ``required 
to have a security plan'' is the clearest means to clarify the 
applicability without the loss of legal precision, especially as MTSA 
addresses regulated entities in a similar manner at 46 U.S.C 70103.
    The Coast Guard received multiple comments suggesting that the 
applicability for these requirements should be a risk-based approach 
based on the varied levels of IT and OT footprints, or how extensive a 
cybersecurity incident would be, based on vessel, facility, or OCS 
facility size and type of operation, including a consideration for the 
applicability to U.S. domestic vessels. Multiple commenters contended 
that prescribing the same requirements for all vessels and not scaling 
the applicability of requirements based on risk profile would impose 
unfeasible requirements and undue burdens on owners and operators of 
vessels. One commenter indicated that this risk-based approach should 
also apply to penetration test requirements. Another commenter further 
suggested that the Coast Guard add objective criteria for cybersecurity 
controls similar to what is currently addressed in NVIC 01-20.
    The Coast Guard determined that these cybersecurity requirements 
should apply to the same entities to which MTSA currently applies, but 
that there are areas where a waiver under Sec.  101.665 could apply. 
The Coast Guard would not currently be able to identify the unique 
aspects of each vessel and facility to develop a comprehensive risk 
factor system and base requirements off that. Additionally, risk 
factors could change, so the Coast Guard would either risk developing 
factors that become outdated, or otherwise could not keep up with a 
changing IT and OT landscape. The Coast Guard feels that the best 
approach is to develop a broad range of cybersecurity requirements in 
this final rule, which serve as baseline requirements across all 
regulated entities rather than a risk-based approach. Since each 
individual entity will have unique features, including their IT and OT 
footprint, we believe it makes the most sense for them to assess 
themselves, and, if needed, identify where they cannot comply or when a 
requirement is not applicable.
    It is practical to maintain the existing MTSA applicability, 
particularly in requiring those regulated stakeholders to complete a 
Cybersecurity Assessment to identify the extent of their IT and OT 
footprint, so all entities can determine which requirements under these 
regulations would apply. In cases when an owner or operator determines, 
through their assessment, that certain criteria do not apply, they may 
follow the procedures in Sec.  101.665 to request a waiver or 
equivalency. NVIC 01-20 serves as general guidance for incorporating 
cybersecurity into existing FSA and FSP requirements in 33 CFR part 
105. This final rule represents more comprehensive cybersecurity 
requirements that go beyond those addressed by NVIC 01-20. An owner or 
operator may, however, use the principles of NVIC 01-20 to help inform 
their compliance with these regulations.
    One commenter suggested that the Coast Guard revise Sec.  101.605 
so that this final rule would not apply to a vessel or facility that 
has not installed an IT or OT system that, if compromised, could result 
in a TSI. The commenter also suggested that the Coast Guard modify 33 
CFR 104.305 and 105.305 so that VSAs and FSAs require an analysis of 
cybersecurity threats as defined in Sec.  101.615.
    The Coast Guard does not agree with this recommendation as we are 
not making changes to existing regulatory requirements in 33 CFR parts 
104 and 105. In addition, the recommendation to revise 33 CFR part 101 
would introduce too much uncertainty into applicability, especially as 
it relates to the need for entities to conduct a Cybersecurity 
Assessment to evaluate risks as a threshold matter. It would be 
premature to carve-out a regulated entity based on an assumption the 
regulated entity's IT or OT poses no risk to the MTS or risk of TSI 
before such an evaluation is made through a Cybersecurity Assessment. 
The function of the Cybersecurity Assessment is to provide the 
necessary information to develop the appropriate mitigation measures 
within the Cybersecurity Plan and to provide the substance that would 
inform any discussions with the COTP or MSC, especially as it may 
relate to requests for waivers or equivalencies.
    One commenter requested clarification as to the applicability of 
these regulations in cases of a landlord port and tenant facilities.
    These regulations create new baseline cybersecurity 
responsibilities for the owner or operator of an applicable U.S.-
flagged vessel, facility, or OCS facility. ``Owner or operator'' is a 
term defined at 46 U.S.C. 70101(5). The applicability of these 
regulations may depend on the nature of any specific landlord port and 
tenant facility agreements. Therefore, the Coast Guard cannot make a 
blanket determination about all landlord-tenant relationships as it 
relates to the responsibility for compliance with the requirements of 
this final rule.
    Some commenters suggested that the Coast Guard incorporate these 
rules into the existing 33 CFR parts 104, 105, and 106 requirements, as 
opposed to creating 33 CFR subpart F.
    The Coast Guard considered this approach but determined that 
putting these cybersecurity requirements in a single subpart within 33 
CFR part 101, which would then follow the applicability of 33 CFR parts 
104, 105, and 106, allowed for the best alignment across regulated 
entities. The Coast Guard has chosen to articulate the cybersecurity 
requirements within 33 CFR part 101 because these regulations impact 
U.S.-flagged vessels, facilities, and OCS facilities collectively. This 
format is presented in a more organized and accessible manner to the 
maritime partners who are already familiar with the MTSA regulations.
    Some commenters asked us to clarify whether 33 CFR subpart F will 
supersede NVIC 01-20.
    NVIC 01-20 is a guidance document that states the Coast Guard's 
policy stance and an interpretation of its existing regulations. NVIC 
01-20 itself is not enforceable as a legislative rule. The 
cybersecurity guidance provided by NVIC 01-20 relates to the 
requirements in 33 CFR part 105 that predate this rulemaking. Upon the 
effective date of this final rule, the requirements in these 
regulations will have the force of law. This final rule will supersede 
NVIC 01-20.
    Some commenters raised concerns that some stakeholders will be 
affected

[[Page 6311]]

by limited workforce and resources and questioned the cybersecurity 
benefits. The commenters asserted that these challenges would be a 
significant hindrance to operational effectiveness and urged the Coast 
Guard to provide sufficient time and flexibility for operators to 
understand and implement the new requirements. The Coast Guard 
recognizes that regulated entities will have different workforce 
levels, as well as financial and other resources, that affect how they 
will comply with this final rule. In many cases, regulated entities 
with a smaller workforce and fewer resources will likewise have a 
smaller IT and OT footprint to assess and address in a Cybersecurity 
Plan. If those entities do have a large IT and OT footprint, then that 
reinforces the need to comply with the requirements in this final rule 
to prevent, mitigate, and respond to cybersecurity threats, 
vulnerabilities, and incidents.
    One commenter stated that this final rule had an unclear impact on 
marine terminal operators participating in unified port authority 
cybersecurity programs.
    The Coast Guard encourages participation and collaboration between 
stakeholders and maritime entities in addressing cybersecurity and 
other security risks throughout a port complex. However, a unified port 
authority cybersecurity program or similar higher-level arrangement may 
not adequately account for the unique cyber threats and vulnerabilities 
for a specific regulated entity. This final rule represents 
requirements for each regulated U.S.-flagged vessel, facility, and OCS 
facility, consistent with existing security requirements according to 
33 CFR parts 104, 105, and 106.
    The Coast Guard believes that both this final rule and unified port 
authority cybersecurity programs can work in complement to each other, 
as they both pursue the same goal of bolstering cybersecurity, where 
the port authority program can be viewed as a macro-level plan, rather 
than the micro-level, individualized plan specific to the U.S.-flagged 
vessel, facility, or OCS facility. This final rule is based on CISA's 
CPGs, which themselves are informed by NIST's Cybersecurity Framework 
(CSF), and all leverage commonly accepted cybersecurity best practices 
that should not conflict with other programs. This final rule 
represents minimum baseline standards that a regulated entity can 
further build upon in coordination with unified port authority 
cybersecurity programs.
    Many ports have an active and robust AMSCs, which may include a 
Cybersecurity Subcommittee that can address coordination. Since this 
final rule and unified port authority cybersecurity programs all share 
a common goal of ensuring cybersecurity, the Coast Guard expects that 
regulated entities and port authorities will work together to ensure 
programs are not in conflict. Additionally, in cases when a unified 
port authority cybersecurity program may impact a regulated entity's 
specific cybersecurity plan, and owner or operator may be able to 
address the impact through the provisions in Sec.  101.665 for 
noncompliance, waivers, and equivalents.

C. Comments Related to Definitions

Sources for Definitions Used in This Final Rule
    Some commenters suggested using definitions for certain terms used 
in this final rule that come from sources such as NIST, DoD's 
Cybersecurity Maturity Model Certification program, and other 
standards.
    The Coast Guard selected the definitions used in this final rule 
based on definitions used by our interagency partners to ensure 
alignment and harmonization across the interagency. The NPRM \46\ 
discussed the citations for these definitions. The Coast Guard 
recognizes that there are numerous definitions for many of the terms 
used in this final rule, and that many might choose other sources, but 
these definitions meet the needs of the Coast Guard and are 
overwhelmingly accepted by stakeholders. The definitions used here are 
standard cybersecurity definitions used across industry and Government 
agencies and are listed in NIST's CSF. This common lexicon helps limit 
miscommunication.
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    \46\ 89 FR 13404.
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Harmonizing Definitions
    One commenter noted that harmonization of definitions for existing 
and proposed cybersecurity requirements is vital.
    As discussed in the preamble of the NPRM, the Coast Guard consulted 
numerous sources for the definitions used in the NPRM. These sources 
include Executive Order 14028, the James M. Inhofe National Defense 
Authorization Act for Fiscal Year 2023 (Pub. L. 117-263) (the Act), the 
Homeland Security Act of 2002 (Pub. L. 107-296), as amended, CISA's 
National Initiative for Cybersecurity Careers and Studies, and NIST's 
Computer Security Resource Center (CSRC). We believe that these sources 
are reliable and generally accepted by the industry and Government 
agencies. Additionally, these terms are appropriate for usage in the 
maritime setting. The definitions used here are standard cybersecurity 
definitions used across industry and Government agencies and are listed 
in NIST's CSF. However, we also recognize that there is some variance 
in the cybersecurity terms used by industry and Government sources. For 
example, NIST defines a ``cyber incident'' as ``an occurrence that 
results in actual or potential jeopardy to the confidentiality, 
integrity, or availability of an information system or the information 
the system processes, stores, or transmits, or that constitutes a 
violation or imminent threat of violation of security policies, 
security procedures, or acceptable use policies.'' Part 6 of title 33 
of the CFR uses similar, but not identical, language to define a cyber 
incident as an occurrence that:
    (1) Actually or imminently jeopardizes, without lawful authority, 
the integrity, confidentiality, or availability of information or an 
information system; or
    (2) Constitutes a violation or imminent threat of violation of law, 
security policies, security procedures, or acceptable use policies.\47\
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    \47\ 33 CFR 6.01-8 and 44 U.S.C. 3552(b)(2).
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    The Homeland Security Act of 2002 also uses similar language, 
defining an incident as ``an occurrence that actually or imminently 
jeopardizes, without lawful authority, the integrity, confidentiality, 
or availability of information on an information system, or actually or 
imminently jeopardizes, without lawful authority, an information 
system.'' \48\
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    \48\ 6 U.S.C. 650(12).
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    After reviewing all these definitions, we selected the ones that 
best fit the maritime setting and ensured that the regulatory 
definitions are consistent with the relevant statutory definitions. The 
definitions used here align with standard cybersecurity definitions 
used across industry and Government agencies and are listed in NIST's 
CSF. These sources provide a common lexicon for everyone to use to 
limit miscommunication and do not differ because they are used in a 
maritime setting.
Adding New Terms to the Final Rule
    Several commenters suggested that we introduce new terms that were 
not defined in the NPRM, such as ``Marine Transportation System 
(MTS),'' ``Critical Cybersecurity Equipment,'' and ``transportation 
security incident.'' In some cases, commenters proposed adding new 
definitions to enhance understanding of this final rule. For

[[Page 6312]]

example, they requested definitions for ``key personnel'' as described 
in Sec.  101.650(d), Cybersecurity Training for Personnel, and 
``sensitive or critical data'' instead of the current requirement that 
``all data'' must be protected under Sec.  101.650(c), Data Security 
Measures. The commenters noted that these suggestions were made to 
clarify specific requirements and improve the overall clarity and 
implementation of this final rule.
    We did not make changes in response to most of these suggestions. 
Adding these terms is unnecessary, as many of them are already well-
defined and have been commonly used in the maritime sector for many 
years. For example, ``Marine Transportation System'' or ``Maritime 
Transportation System'' are terms that are widely recognized and 
understood by industry and Government agencies.\49\ Similarly, 
transportation security incident is a term that, although mentioned 
several times in the NPRM, was not defined because it is already 
defined at 46 U.S.C. 70101 and in 33 CFR 101.105. This definition has 
been in place for over 20 years under the MTSA regulations. Therefore, 
we do not see the need to introduce additional definitions for these 
terms.
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    \49\ See for example, 46 U.S.C. 50401.
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    Some commenters suggested that the Coast Guard define what is a 
``significant number'' when disclosure or unauthorized access directly 
or indirectly of nonpublic personal information of individuals 
information requires reporting in the proposed definition for 
reportable cyber incident.
    The Coast Guard did not make changes in response to these requests. 
We recognize that we use several terms, such as ``significant number,'' 
in this final rule without defining them. We intentionally left this 
and other terms undefined because their meanings can vary significantly 
depending on an organization's operational conditions and cybersecurity 
risks. This approach ensures that the definition is appropriately 
tailored to the unique context and needs of each organization. By 
allowing organizations to define these terms themselves, we aim to 
provide a more flexible approach to meet the requirements in the 
evolving cybersecurity environment in the maritime sector.
Defining the Term ``Reportable Cyber Incident''
    Numerous commenters responded affirmatively to our request for 
comments on whether we should define and use the term ``reportable 
cyber incident'' in this rulemaking to clarify what incidents trigger 
reporting obligations. Some commenters offered suggestions on edits to 
this proposed definition, including reordering subparagraphs. One 
commenter suggested limiting the definition to known incidents and not 
including those still under investigation considering the DHS report, 
informed by the work of the Cyber Incident Reporting Council (CIRC), 
which advises that the Federal Government should adopt a consistent 
model definition of a ``reportable cyber incident'' wherever 
practicable. Another commenter noted that establishing a threshold for 
reportable cyber incidents based on the potential that the incident 
could result in a TSI would clarify what does and does not need to be 
reported. Another commenter recommended that the Coast Guard should 
narrowly tailor ``reportable cyber incident'' to align with the Coast 
Guard's mission and the underlying purpose of the MTSA.
    The Coast Guard agrees with the suggestion to define and use the 
term reportable cyber incident. We have included the term reportable 
cyber incident in this final rule. The Coast Guard's definition of 
reportable cyber incident is based on the model definition proposed in 
the CIRC-informed DHS Report (the ``CIRC Model Definition'').\50\ 
Interagency stakeholders reviewed this term and its definition to 
ensure alignment and harmonization to the extent practical. The Coast 
Guard did not adopt the suggested edits to the proposed definition. We 
are maintaining the definition we included in the preamble to the NPRM, 
based on other public comments and discussion with interagency partners 
on harmonization.
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    \50\ See DHS Office of Strategy, Policy, and Plans, 
Harmonization of Cyber Incident Reporting to the Federal Government 
(Sept. 19, 2023), <a href="https://www.dhs.gov/publication/harmonization-cyber-incident-reporting-federal-government">https://www.dhs.gov/publication/harmonization-cyber-incident-reporting-federal-government</a>, accessed August 13, 
2024.
---------------------------------------------------------------------------

    One commenter stated that the definition for reportable cyber 
incident should include clearly defined thresholds for such incidents.
    The Coast Guard does not agree. The definition for a reportable 
cyber incident provides sufficient detail to allow owners, operators, 
or CySOs to determine what constitutes such an incident and reflects 
harmonization among the interagency on the substance of this 
definition.
    As noted previously, after considering all public input, we have 
decided to include the term reportable cyber incident as defined in the 
NPRM. We concur with the many comments that this term is sufficiently 
well-defined to provide clear guidance on when and under what 
conditions cyber incidents must be reported to the NRC. This clarity 
will help eliminate the need to report minor cyber incidents, which 
will reduce the administrative burden on owners and operators as a 
result.
    One commenter suggested that the Coast Guard include the definition 
for a reportable cyber incident, but to allow for a threshold that 
would include unauthorized attempts by third-party actors to access 
sensitive information. The commenter also stated that these incidents 
should include phishing attempts, attempts to gain access to terminal 
operating systems, and unsuccessful malware attacks, as well as loss of 
network availability, exposure of sensitive data, and disruption of 
business operations as a result of unauthorized access by third 
parties.
    We did not adopt this suggestion. The Coast Guard's definition 
allows for the owner, operator, or CySO to determine if an incident 
meets the criteria for reporting. Further, the Coast Guard encourages 
stakeholders to report any situation or incident out of the ordinary if 
there is doubt or if they question whether it meets the definition of 
reportable cyber incident.
    We acknowledge the concerns raised by some commenters about 
redundancy and the need for interagency coordination. The Coast Guard 
will continue to work with other Government agencies to ensure our 
language aligns among all regulations and ensure harmonization of 
efforts to the extent practicable.
    The Coast Guard emphasizes information sharing among its 
interagency partners. The Coast Guard shares information with other 
Federal agencies through multiple channels: NRC reports of incidents 
are shared with DHS, CISA, and other relevant agencies. As a Co-Sector 
Risk Management Agency for the Transportation Systems Sector, the Coast 
Guard regularly communicates with the U.S. Department of 
Transportation, the Maritime Administration, TSA, and CISA.\51\ The 
Coast Guard is a participant on numerous National Security Council-led 
Interagency Policy Committees. Engagement among local, State, Federal, 
and Tribal agencies also occurs through AMSCs. The Coast Guard shares 
cyber-focused products such as marine safety

[[Page 6313]]

information bulletins, cyber advisories, and other products across 
interagency partners.
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    \51\ The White House, National Security Memorandum on Critical 
Infrastructure Security and Resilience, Apr. 30, 2024, <a href="https://www.whitehouse.gov/briefing-room/presidential-actions/2024/04/30/national-security-memorandum-on-critical-infrastructure-security-and-resilience/">https://www.whitehouse.gov/briefing-room/presidential-actions/2024/04/30/national-security-memorandum-on-critical-infrastructure-security-and-resilience/</a>, accessed on December 20, 2024.
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    One commenter noted that they support defining reportable cyber 
incident to distinguish between incidents that must be reported and 
those that do not; however, they find the current definition of ``cyber 
incident'' in Sec.  101.615 is too broad and overly focused on IT. The 
commenter also noted that they have concerns with the proposed 
definition of reportable cyber incident and its alignment, or lack 
thereof, with other definitions for reportable cyber incidents in 
regulation and policy.
    The Coast Guard definition of cyber incident is based on the 
existing definition of incident in Title XXII of the Homeland Security 
Act of 2002,\52\ which is not textually identical, but is substantively 
similar in relevant part to, the definition of ``cyber incident'' in 
Executive Order 14116. An incident in the Homeland Security Act of 2002 
is ``an occurrence that actually jeopardizes, without lawful authority, 
the integrity, confidentiality, or availability of information or an 
information system, or actually jeopardizes, without lawful authority, 
an information system.'' Although the Coast Guard recognizes that not 
all commenters may agree with our chosen definition, the Coast Guard 
values alignment with these established terms to minimize potential 
conflicts that could be created by significant deviations between 
definitions in these regulations and existing statutes.
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    \52\ Public Law 107-296, as added by Public Law 117-263, section 
7143, classified to 6 U.S.C. 650.
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    ``Information system'' is defined in this final rule as an 
interconnected set of information resources under the same direct 
management control that shares common functionality. Typically, a 
system includes hardware, software data, applications, communications, 
and people. It includes the application of IT, OT, or a combination of 
both. The definition of information system clearly covers both IT and 
OT systems.
    The Coast Guard's definition of reportable cyber incident is based 
on the model definition proposed in the CIRC Model Definition. However, 
in CISA's proposed rule implementing the Cyber Incident Reporting for 
Critical Infrastructure Act of 2022 (CIRCIA) (Pub. L. 117-103), the 
proposed definition of ``substantial cyber incident'' (which is used 
within the definition of ``covered cyber incident,'' the term that 
describes what cyber incidents are required to be reported under 
CIRCIA) does not include the CIRC Model definition's phrase ``or, if 
still under the covered entity's investigation, could reasonably lead 
to any of the following,'' as CISA interprets CIRCIA to require an 
incident to actually result in one of the impacts listed in the 
definition of substantial (in this case, reportable) cyber incident 
under CIRCIA.\53\ For similar reasons, CISA did not propose including 
in the definition of ``substantial cyber incident,'' the CIRC Model 
Definition's fourth threshold prong, ``potential operational 
disruption.'' A ``reportable cyber incident'' is a type of ``cyber 
incident'' as these terms are defined in this final rule. A 
``reportable cyber incident'' as defined in this final rule would also 
trigger a reporting obligation under 33 CFR 6.16-1 for entities 
required to report a cyber incident as such term is defined in 33 CFR 
part 6.
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    \53\ 89 FR 23644.
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Revising the Definition of ``Breach''
    One commenter noted that the term ``breach,'' when used by the 
Coast Guard to discuss a breach of security, could have serious, 
significant legal and financial impacts in reference to cybersecurity.
    We revised Sec.  101.625(d)(10) in this final rule to refer to 
``reportable cyber incidents'' rather than ``breaches of security, 
suspicious activity that may result in TSIs, TSIs, and cyber 
incidents.'' This is also consistent with our decision to define and 
include the term reportable cyber incident.
Adding a Definition for ``Cybersecurity Threat''
    One commenter recommended adding the definition of ``cybersecurity 
threats'' to 33 CFR parts 104 and 105.
    The Coast Guard does not agree to add the definition of 
``cybersecurity threat'' because it is already encompassed by the 
defined term ``cyber threat'' the Coast Guard uses in this final rule. 
Cyber threat is the term used in CIRCIA, which amended the Homeland 
Security Act of 2002 (Pub. L. 107-296). CIRCIA defined cyber threat by 
cross-referencing to the term cybersecurity threat as it was already 
defined in the Homeland Security Act of 2002. The two statutory terms 
share the same definition, which is substantively repeated in this 
final rule. For the sake of consistency in this final rule, the Coast 
Guard has chosen cyber threat as the term-of-art for these regulations.
    Furthermore, the Coast Guard does not concur with the suggestion to 
amend 33 CFR parts 104 and 105 because, except for amending 33 CFR 
160.202, this final rule is limited to establishing requirements in 33 
CFR part 101. Adding or removing requirements in parts 104, 105, or 106 
is outside the scope of this final rule. The new definitions in Sec.  
101.615 are sufficient for this final rule.
Revising the Definition of ``Backup''
    One commenter raised a concern that the primary issue with the 
concept of ``backup'' is that it lacks the flexibility to rebuild or 
re-instantiate a system from something other than a backup. When 
restoring from backups, time can be a critical factor. Therefore, the 
commenter recommended that the Coast Guard expand this definition and 
eliminate the requirement for all backups to be stored offsite.
    The Coast Guard agrees with this commenter. We revised the 
definition of backup in Sec.  101.615 to remove the phrase ``in a 
secondary location'' and the implication that backups must be stored 
``offsite.'' Instead, we added language to clarify our definition of 
backup. In this final rule, backups refer to ``copies being stored 
separately for preservation and recovery.'' With these changes, the 
revised definition is sufficient for the requirements in these 
regulations. If an owner or operator of a U.S.-flagged vessel, 
facility, or OCS facility identifies a method that they feel falls 
outside of that definition, they may follow the process to request a 
waiver according to Sec.  101.665.
Defining the Term ``Transportation Security Incident''
    One commenter questioned the clarity of the definition of a 
``transportation security incident,'' while another suggested a 
definition of ``security incident.''
    Transportation security incident is defined by the MTSA, codified 
at 46 U.S.C. 70101, and in 33 CFR 101.105. Further guidance on what 
constitutes a TSI (as well as a ``breach of security'' or ``suspicious 
activity'') is provided in NVIC 02-24.
Revising the Definition of ``Hazardous Condition''
    Multiple commenters addressed our request for input on whether we 
should amend the definition of ``hazardous condition'' in 33 CFR 
160.202 by adding ``cyber incidents.'' The Coast Guard received several 
comments in favor of amending the definition of hazardous condition to 
include cyber incidents. Conversely, one commenter advised against 
including cyber incidents under the definition of hazardous condition 
in Sec.  160.202. The commenter warned that doing so could lead to 
unnecessary sharing of sensitive information during

[[Page 6314]]

cyber incidents, such as losing confidential data, that do not impact 
marine operations. The commenter recommended against additional 
reporting requirements beyond those mandated by CISA if cyber incidents 
are added to the definition of hazardous condition. Other commenters 
also suggested that the Coast Guard clarify the application of this 
definition to marine terminals and OCS facilities, as much of this 
section pertains to vessel requirements and may cause confusion.
    The Coast Guard concurs with the recommendations to include the 
term. Accordingly, we amended the definition of hazardous condition in 
that section to include the term cyber incident. Including the term 
cyber incident is a helpful example that adds clarity to the existing 
regulation in 33 CFR 160.202, which applies only to vessels. The Coast 
Guard recognizes that not all occurrences with a cyber aspect will 
create a hazardous condition, but believes the term's inclusion in the 
list of examples will be beneficial by highlighting that cybersecurity 
is an important consideration that operators should be cognizant of 
when assessing hazardous conditions.
    As discussed elsewhere in this preamble, the Coast Guard amended 
the definition of hazardous condition to include cyber incidents. The 
Coast Guard is not changing the applicability of Sec.  160.203 to 
include facilities or OCS facilities because Sec.  160.203 relates to 
the Notice of Arrival and Departure regulations for vessels. This 
clarification to the definition of hazardous condition is distinct from 
the new baseline cybersecurity requirements for MTSA-regulated 
entities.
    One commenter expressed concern with the NPRM's approach to 
requesting input on whether to define and use reportable cyber 
incident, and whether to amend the definition of ``hazardous 
condition.'' The commenter strongly advocated for harmonizing the 
reporting process, noting that owners and operators of U.S.-flagged 
vessels are already familiar with reporting to the NRC. They suggested 
that all cyber incidents should be reported through this channel, 
allowing the NRC to relay information to other Federal agencies as 
needed.
    The Administrative Procedure Act requires that we provide general 
notice of a proposed rulemaking, including notice of the terms or 
substance of a proposed rule or a description of the subjects and 
issues involved.\54\ Asking the public to comment on specific items, in 
addition to the NPRM as whole, is a commonly accepted way to seek 
public participation in the rulemaking process. In fact, as discussed 
above, we received numerous comments responsive to our request.
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    \54\ 5 U.S.C. 553(b)(3).
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D. Comments Related to Owner or Operator

    We received a series of comments about the responsibilities of the 
owner or operator for managing the Cybersecurity Plan.
    One commenter recommended assigning responsibilities to the 
operator to ensure compliance with applicable regulations for regulated 
facilities. One commenter recommended assigning overall responsibility 
for vessels to the company or organization (in this case, a Document of 
Compliance (DOC) holder) if the owner and operator of a vessel are 
separate entities. Another commenter recommended the term ``owner and 
operator'' be clarified to signify a single responsibility for the 
vessel (in this case, a DOC holder), OCS facility, or other facility 
owned or operated, based on IMO practice.
    We did not make changes in response to these recommendations. The 
Coast Guard desires consistency with the existing regulations and uses 
the term ``owner or operator'' as defined in Sec.  101.105 throughout 
this final rule. The Coast Guard does not agree that further 
clarification of the term ``owner or operator'' is needed. The term 
owner or operator in this final rule is consistent with existing MTSA 
regulations, and it is unnecessary to specify further criteria for the 
entity with overall responsibility (such as requiring them to be 
holding a DOC).
    One commenter requested clarification of the differences between 
the roles and responsibilities of the owner or operator and the CySO as 
there are similar or overlapping roles to both.
    The roles and responsibilities of the CySO and owner or operator 
are clearly outlined in this final rule in Sec. Sec.  101.625 and 
101.620, respectively, and are in line with the existing relationships 
between the owner or operator, Vessel Security Officer (VSO), and 
Facility Security Officer (FSO) in existing regulations. While there is 
some overlap between the roles, any redundancy or overlap does not take 
away from the responsibilities of the CySO and owner or operator and 
enables the owner or operator to maintain oversight over the CySO 
position.
    One commenter recommended that the Coast Guard change the phrase 
``responsible for'' to ``accountable for'' in Sec.  101.620(a) when 
referring to owners and operators assigning security duties to other 
personnel. According to the commenter, this change would highlight the 
importance of how these roles will be staffed and implemented, 
indicating a more structured approach to accountability within the 
organization.
    The Coast Guard declined to make this change, as the term 
``responsible for'' is consistent with existing language for VSOs, 
FSOs, and OCS FSOs in current regulations and is long-standing industry 
practice.
    One commenter questioned whether ``person'' as stated in Sec.  
101.620(b)(2) is synonymous with ``role.''
    An owner or operator subject to this final rule is required to 
identify each person exercising cybersecurity duties and 
responsibilities. Any person having such duties and responsibilities 
would likewise have a ``role.'' Owners and operators should focus on 
the language of this final rule and identify each person, as stated. 
The Coast Guard is concerned that the necessary duties are properly 
assigned and performed. The particular manner which an entity 
identifies and assign those duties, whether by individual name or by 
role, is left to the entity's discretion. The Coast Guard encourages 
owners and operators to comply with the requirements under Sec.  
101.620(b)(2) consistent with how their U.S.-flagged, facility, OCS 
facility, or organization addresses similar requirements in their VSP, 
FSP, or OCS FSP.

E. Comments Related to Cybersecurity Officer

    Some commenters stated that they did not believe that cybersecurity 
warrants another designation for security personnel, in this case a 
CySO, and felt that a specific cybersecurity plan was not needed. They 
recommended adding cybersecurity duties to existing responsibilities of 
the Company Security Officer (CSO) and VSO. Another commenter felt that 
the CySO position might be unnecessary and requested a process for 
waiving this requirement. Another commenter believed that this final 
rule should state the actions that an organization must take, rather 
than specifying the individual role that needs to accomplish those 
actions. They felt that organizations should be able to identify who 
that person would be for their organization, which may align to other 
positions or titles within their organization.
    The Coast Guard strongly believes that the present and evolving 
cybersecurity threats in the MTS require specific regulations to help 
prevent, mitigate, and respond to cybersecurity incidents and 
vulnerabilities. This final rule provides minimum cybersecurity

[[Page 6315]]

requirements for a common cybersecurity baseline for regulated maritime 
entities. The threats and vulnerabilities addressed are not adequately 
covered by existing regulations. The requirements to designate a CySO 
and to develop a Cybersecurity Plan reflect the reality that 
cybersecurity threats, risks, and vulnerabilities exist in the MTS, and 
have the potential to significantly affect the safety and security of 
individual entities, as well as the MTS and other transportation 
critical infrastructure. The Coast Guard has determined that it is 
necessary to identify a specific CySO, similar to the identification of 
a VSO or FSO, that serves as the primary lead to organize these efforts 
within their U.S.-flagged vessel, facility, or OCS facility, to ensure 
that there is at least one representative focusing on and addressing 
the relevant requirements. Consistent with Sec.  101.625, the CySO may 
perform other duties such as CSO, FSO, or VSO. It will be up to owners 
and operators of U.S.-flagged vessels, facilities, and OCS facilities 
to decide whether they need to designate a sole security officer that 
focuses exclusively on cybersecurity.
    One commenter stated that the requirements for cybersecurity should 
be directed at the executive level, and not create a CySO position to 
handle many of these requirements.
    The owner or operator has ultimate responsibility for compliance 
with this final rule. This includes the designating a CySO, as required 
by Sec.  101.620(b)(3). It is the responsibility of each regulated 
entity to ensure their executive leadership is aligned with the CySO 
and other cybersecurity professionals. Placing full ownership of 
cybersecurity requirements on the owner or operator, without the 
designation of a CySO, would be burdensome to the owner or operator. 
The position of CySO ensures the regulated entity has personnel with 
the necessary professional expertise to address cybersecurity.
    Several commenters stated that the qualifications listed in these 
regulations did not fully encompass what would be required for a 
successful CySO position. Additionally, a commenter questioned the 
qualifications of the Coast Guard or a third-party organization to 
evaluate what is required of a specific organization's CySO. The 
commenter also suggested that either the Coast Guard or a third-party 
organization would be in a poor position to evaluate whether they meet 
the necessary qualifications. Another commenter stated that it could be 
difficult for small organizations to have someone on staff with these 
qualifications.
    This final rule presents minimum baseline requirements, including 
the requirements of a CySO for a U.S.-flagged vessel, facility, or OCS 
facility. The qualifications required serve as a baseline that should 
be attainable and easily evaluated by organizations of any size or 
complexity. Organizations are welcome to identify additional 
requirements, such as additional qualifications, that they would 
require of their CySO position as best suits their individual needs, so 
long as the minimum requirements of this final rule are met. It is up 
to the owner or operator of a U.S.-flagged vessel, facility, or OCS 
facility to determine that their candidate meets these requirements, 
and for the Coast Guard to evaluate whether the owner or operator met 
their required responsibilities in their review of the Cybersecurity 
Plan.
    The Coast Guard does not, and will not, have a role in an 
organization's hiring of new personnel or designation of new roles and 
responsibilities to existing personnel. These decisions are left up to 
the owner or operator. The Coast Guard has stated that the CySO can be 
an existing employee at a U.S.-flagged vessel, facility, or OCS 
facility. The Coast Guard will verify that a qualified CySO has been 
designated by the owner or operator according to this final rule. The 
Coast Guard recognizes that this final rule will result in costs 
incurred by industry. Failure to designate a CySO, as well as failure 
to comply with any other aspect of this final rule, would be subject to 
actions as determined by the COTP or other appropriate Coast Guard 
representative.
    One commenter asked the Coast Guard to clarify if the CySO must be 
a U.S. citizen.
    The Coast Guard does not impose citizenship requirements for the 
CySO position in this final rule. The Coast Guard may consider this 
issue in a subsequent rulemaking, as appropriate.
    Some commenters noted that for small operators, or those with 
limited resources, the CySO would likely be a collateral duty. Another 
commenter similarly commented that it was not reasonable to expect 
every owner or operator of a vessel to employ a cybersecurity expert, 
and that the CySO position requires too much specialized knowledge and 
too much time to be added to an existing position. Many small companies 
without an in-house IT department might have to rely on a third-party 
provider for all cybersecurity needs and protections. Consequently, the 
commenters were concerned that this final rule would impose unrealistic 
requirements and undue burdens on small operators. Some commenters 
requested that the Coast Guard clarify that a CySO could be someone 
designated at the corporate level.
    The Coast Guard notes in this final rule that the CySO designation 
may be given to an employee with other responsibilities consistent with 
Sec.  101.625. The CySO role may be a collateral duty so long as all 
the requirements and responsibilities of the position are met. It is 
the responsibility of owners and operators to ensure that cybersecurity 
risks are managed and addressed, whether through in-house resources or 
through third-party services. While we understand the concerns 
regarding the potential burden of compliance, it is essential that 
cybersecurity requirements are met to safeguard the organization's 
assets and ultimately, maritime critical infrastructure and the MTS. 
Ensuring robust cybersecurity defenses is critical to protecting 
against potential threats and maintaining operational integrity.
    The Coast Guard developed these regulations, including the 
cybersecurity requirements, to enable owners and operators to identify 
a person who can manage the requirements, even if they must rely on 
other cybersecurity, IT, or OT professionals for more technical items 
in the rule. Regardless of the size of an organization itself, the size 
of their IT and OT footprint dictates how much a CySO will have to 
address. A company with a small IT or OT footprint would likewise be 
scaled towards fewer items that the CySO would be responsible for. A 
company with a larger IT or OT footprint would similarly require more 
of the CySO position, commensurate to the level of risk posed. The 
Coast Guard believes, therefore, that there would be little to no undue 
burden or unrealistic requirement of any regulated entity, as the level 
of cybersecurity actions required of the CySO directly correlates to 
their cyber footprint. The Coast Guard reiterates that this final rule 
allows for the designation of the CySO role to an existing employee at 
any level of the organization, so long as the requirements and 
responsibilities are met for each individual U.S.-flagged vessel, 
facility, or OCS facility.
    Some commenters requested that the Coast Guard recognize that a 
facility may designate an alternate CySO. Their concern is that, for a 
company with multiple facilities, one CySO may not have the knowledge 
or practical capability to effectively manage all of them.
    The Coast Guard revised the definition for Cybersecurity Officer in 
Sec.  101.615 to clarify that the owner or operator must designate a 
CySO, but

[[Page 6316]]

they also may designate an alternate CySO to assist in the duties and 
responsibilities at all times, including at times when the CySO may be 
away from the U.S.-flagged vessel, facility, or OCS facility.
    One commenter supports including the phrase ``or equivalent job 
experience'' to the CySO requirements.
    The Coast Guard agrees that the ``or equivalent job experience'' is 
an important phrase and maintains it as part of the final rule in Sec.  
101.625(e).
    Some commenters requested that we rename the CySO position from 
``CySO'' to ``Facility Cybersecurity Officer'' due to potential 
confusion with other positions and titles, such as the Chief 
Information Security Officer (CISO) or other ``C-Suite'' personnel. 
These commenters expressed concern that the Coast Guard was introducing 
a term that has not previously been used by other agencies and offered 
alternative titles for the role.
    This final rule clearly defines the CySO position and 
differentiates it from other positions and titles at a U.S.-flagged 
vessel, facility, OCS facility, or organization. We do not agree with 
changing the name of the position in this final rule, especially as 
this applies specifically to U.S.-flagged vessels, facilities, and OCS 
facilities. We selected this term to differentiate from other roles 
identified in existing regulations, while clearly outlining the 
requirements of the position. If an owner or operator prefers to refer 
to the position by a different title within the organization, then they 
are free to do so as long as they explain the different title in their 
Cybersecurity Plan.
    One commenter expressed concern that this final rule does not 
address how the CySO is expected to interact with the CSO, and that the 
relationship between these two positions should be clearly defined. 
They stated that the CSO should have ultimate responsibility on all 
security-related matters, including cybersecurity, and that the CSO 
should approve the Cybersecurity Plan.
    The Coast Guard notes that the roles and responsibilities of the 
CSO are clearly outlined in existing regulations, and the roles and 
responsibilities of the CySO are clearly outlined in this final rule. 
Any interaction between the CySO and other security positions should be 
determined by the owner or operator at the U.S.-flagged vessel, 
facility, OCS facility, or organizational level, as appropriate. As 
long as statutory and regulatory requirements are met, it is the 
discretion of each owner or operator of U.S.-flagged vessel, facility, 
or OCS facility to determine how their employees interact.
    One commenter requested that specific criteria be developed for the 
CySO position to develop training programs. The commenter requested 
that Government-funded training courses be considered for existing CSOs 
to be trained for the CySO designation. This commenter also requested 
that third-party training programs be eligible for Federal grant 
programs, such as FEMA's Port Security Grant Program.
    The Coast Guard notes that the criteria in Sec.  101.625 is 
sufficient as baseline requirements for the CySO position. When 
determining the baseline requirements for the CySO, we looked at 
similar jobs and pulled those requirements that suited the need. The 
Coast Guard does not currently have plans to develop and fund training 
programs for the CySO position. We advise affected entities that they 
are welcome to work with FEMA, local port partners, their Area Maritime 
Security Committee, and others, as appropriate, in requesting support 
through any Federal grant program in support of maritime security. The 
decision on what is eligible for, and would receive such grant funding, 
is not made by the Coast Guard.
    One commenter requested clarification on the specifics of 
cybersecurity inspections that are the responsibility of the CySO, 
including how they will be conducted.
    Coast Guard inspections are intended to verify compliance with an 
approved Cybersecurity Plan. When arranging for and during the 
inspection, it is the responsibility of the CySO to ensure that any 
disruptions to operations are minimized. The cybersecurity portion of 
the inspection will follow standard inspections procedures, similar in 
methodology to physical facility inspections, in verifying compliance 
with the regulations. The Coast Guard may consider future policy 
development, if needed, on the conduct of cybersecurity inspections.
    One commenter recommended mandatory training and certification for 
the position of the CySO. For vessel CySOs, one commenter suggested 
implementing a certificate of proficiency similar to those required for 
other roles under the International Convention on Standards of 
Training, Certification, and Watchkeeping for Seafarers.
    After reviewing the requirements for designating a CySO, the Coast 
Guard is not including additional requirements or certifications at 
this time. This final rule provides minimum baseline requirements 
necessary for the identification of this role, and the Coast Guard does 
not intend to place too prescriptive requirements that could impede 
stakeholders' ability to identify suitable candidates. Owners and 
operators are welcome to add additional requirements on their own, so 
long as they meet compliance with these regulations.
    Some commenters questioned why there are physical security controls 
under the CySO when these are under the existing purview of VSOs, FSOs, 
and OCS FSOs.
    The Coast Guard notes that physical security controls for IT and OT 
systems are listed in Sec.  101.630(c)(8) as being part of the 
Cybersecurity Plan, which is developed and implemented by the CySO. 
These regulations do not preclude the VSO, FSO, or OCS FSO from 
performing their required roles and responsibilities and helping to 
inform the Cybersecurity Plan, or otherwise working with the CySO in 
the completion of security-related requirements.
    One commenter expressed concern that the roles and responsibilities 
of the CySO are too complex for just one person, and often these 
functions are performed by a team or multiple employees.
    The Coast Guard notes that the CySO is required to ``ensure'' that 
certain actions are conducted and allows for them to work with the team 
and others who assist in carrying out those functions. The CySO is also 
able to assign security duties as needed.
    One commenter stated that the requirements under Sec. Sec.  
101.625(d)(8) and 101.625(d)(9) were very similar and could be 
combined. The requirements in question are to ensure the cybersecurity 
awareness and vigilance of personnel through briefings, drills, 
exercises, and training and to ensure adequate cybersecurity training 
of personnel.
    The Coast Guard agrees with this comment and removed ``through 
briefings, drills, exercises, and training'' from Sec.  101.625(d)(8) 
to provide CySOs with more flexibility, and less prescriptive measures, 
on how they would meet the requirements, and also alleviate redundancy 
in the language between paragraphs (d)(8) and (d)(9).
    Several commenters requested that the Coast Guard remove the 
requirement for cybersecurity inspections to be arranged in conjunction 
with U.S.-flagged vessel, facility, and OCS facility inspections, as a 
U.S.-flagged vessel, facility, or OCS facility might feel that they 
need to conduct the cybersecurity inspection separately due to factors 
such as availability of the CySO.

[[Page 6317]]

    In this final rule, the Coast Guard revised Sec.  101.625(d)(6), 
which requires the CySO to arrange for the cybersecurity inspection to 
reflect that cybersecurity inspections may be held in conjunction with 
physical security inspections, to increase flexibility and decrease 
burden, for the U.S.-flagged vessel, facility, or OCS facility. The 
Coast Guard notes that scheduling inspections is ultimately up to the 
local COTP or the Officer in Charge, Marine Inspections (OCMI) in 
working with the regulated U.S.-flagged vessel, facility, or OCS 
facility.

F. Comments Related to the Cybersecurity Plan

    Several commenters noted that there is a lack of clarity whether 
one Cybersecurity Plan for a fleet is acceptable, or if each vessel and 
facility requires its own Plan.
    Each regulated U.S.-flagged vessel, facility, and OCS facility is 
required to develop and maintain a Cybersecurity Plan.
    Multiple commenters noted a lack of reference to ASPs. One 
commenter also recommended that the Coast Guard allow the Passenger 
Vessel Association (PVA) specific ASP. As noted in Sec.  101.660 of 
this final rule, the Coast Guard will allow owners and operators to use 
ASPs to comply with this final rule. We added additional text to Sec.  
101.660 to clarify that ASP provisions apply to cybersecurity 
compliance documentation. Given the unique nature of cybersecurity 
threats, vulnerabilities, and mitigation strategies, owners and 
operators must ensure that use of ASPs includes those items specific to 
each U.S.-flagged vessel, facility, and OCS facility. The Coast Guard 
will evaluate each ASP's cybersecurity component to ensure full 
regulatory compliance with each applicable requirement, including the 
PVA-specific ASP.
    One commenter recommended that Sec.  101.630(a) be amended to add 
ASPs and OCS FSPs to the requirement for CySOs.
    The Coast Guard partially concurs with the recommendation and added 
references to OCS FSPs in Sec.  101.630(a) to clarify that OCS FSPs 
follow the same requirements as VSPs and FSPs. However, we do not find 
it necessary to add the term ``Alternative Security Program'' because 
ASPs are already included as an option in Sec.  101.660 and are also 
expressly addressed in 33 CFR parts 104, 105, and 106.
    Some commenters stated that the Cybersecurity Plan should include 
additional security measures for the vessel, facility, or OCS facility 
to take in cases of increased MARSEC levels. For instance, MARSEC Level 
3 Cybersecurity Controls may involve reviewing and authorizing all 
remote access sessions; removing unpatched systems from direct internet 
access; isolating or shutting down nonessential systems; requiring 
multifactor authentication for all accounts; and reporting suspicious 
activity to stakeholders, ISACs, CISA, and the Coast Guard. 
Cybersecurity MARSEC actions should be specific, achievable, and 
deliver meaningful security benefits. This enables the vessel or 
facility to reduce vulnerabilities and enhance resilience, even for 
short periods. They also suggested that the Cybersecurity Plan should 
encourage owners or operators to implement additional measures anytime 
credible threat information is known.
    This final rule does not prevent a U.S.-flagged vessel, facility, 
or OCS facility from adding such language or additional measures to 
their Cybersecurity Plan, should they desire. However, the Coast Guard 
did not add requirements for increased MARSEC levels in this final rule 
and will not mandate this language because of multiple factors. First, 
it is difficult to set MARSEC conditions solely based on cybersecurity 
threats. Cybersecurity threats are constantly evolving, with new 
vulnerabilities, attack vectors, and tactics emerging regularly. This 
makes it challenging to establish static threat conditions that can 
effectively address all potential scenarios. Additionally, 
cybersecurity threats can originate from various sources, including 
nation-states, cybercriminals, insiders, hacktivists, and others. Each 
source has different capabilities, motivations, and methods, requiring 
tailored threat conditions that are difficult to generalize. Even if we 
were to set MARSEC conditions based on cybersecurity threats, it would 
be challenging to list one-size-fits-all requirements that would work 
for a wide array of vessels and port facilities, each with different 
risk profiles and operational conditions. For example, vessels may face 
different types of cyber-attacks depending on their routes, locations, 
cargoes, and onboard technologies. Imposing blanket cybersecurity 
requirements based on MARSEC conditions may not be practical in these 
cases.
    Furthermore, creating specific requirements for each MARSEC level 
would necessitate constant updates and adjustments to keep pace with 
the dynamic nature of cyber threats. This would place a significant 
administrative burden on both the Coast Guard and the maritime 
industry. Instead, we are maintaining a flexible and adaptive approach 
to cybersecurity in this final rule that allows for tailored responses 
based on the unique circumstances of each U.S.-flagged vessel, 
facility, and OCS facility.
    One commenter inquired about how a CySO would respond to elevations 
in MARSEC levels.
    The regulations in this final rule do not tie these minimum 
baseline requirements to elevation in enforcement due to MARSEC level. 
Guidance on responding to elevated MARSEC levels would come in a 
separate Coast Guard directive.
    One commenter questioned the use of ``major amendment'' when 
requiring a resubmission of a Cybersecurity Plan in the regulations and 
suggested further clarification or definition would be needed. Another 
commenter expressed appreciation for the flexibility for each owner or 
operator to determine what constitutes a ``major amendment'' as 
appropriate for their organization based on types of changes to their 
security measures and operational risks,'' but cautioned that this 
creates its own uncertainty. The commenter requested that in the final 
rule, the Coast Guard be more explicit or provide thresholds or 
examples of what it considers ``major.'' The commenter also suggested 
that factors such as cost and operational burden should be considered 
(for example, more operators and employees or more equipment), and that 
the threshold may be a percent of the current budget for cybersecurity 
since each company will be different. The commenter reasoned that this 
threshold would also provide clarity for Coast Guard personnel. Another 
commenter suggested that such further clarification would be similar to 
the Coast Guard's clarification of ``major conversion'' for materiel 
requirements. Similarly, a commenter stated that the proposed 30-day 
notice to the Coast Guard for approval of any proposed major amendments 
to the Cybersecurity Plan would be overly burdensome and would likely 
cause the Cybersecurity Plan to be in a constant state of flux because 
of waiting for approvals and revisions, or could unnecessarily delay 
security enhancements that may trigger a required audit or approval 
cycle.
    The Coast Guard recognizes these concerns. The Coast Guard 
considered the suggestion to define ``major amendment'' much like the 
Coast Guard has done with ``major conversion'' for materiel 
requirements but does not agree with it. Rather than define the term 
``major amendment,'' we removed it from Sec. Sec.  101.625(d)(13) and 
101.630(e)(2) in this final rule. This removes any ambiguity about 
which

[[Page 6318]]

amendments require resubmission of the Cybersecurity Plan. It is also 
consistent with our physical security requirements in 33 CFR parts 104, 
105, and 106, which do not specify that only ``major'' amendments must 
be sent to the Coast Guard for approval. See 33 CFR 104.415(a)(2), 
105.415(a)(2), 106.415(a)(2). Removing the term ``major'' allows 
stakeholders to address amendments uniformly across both physical 
security and cybersecurity requirements. We retained the requirement to 
submit proposed amendments within 30 days but note that Sec.  
101.630(e)(2)(i) provides that nothing in this section should be 
construed as limiting the owner or operator of the U.S.-flagged vessel, 
facility, or OCS facility from the timely implementation of such 
additional security measures not enumerated in the approved VSP, FSP, 
or OCS FSP as necessary to address exigent security situations.
    Some commenters recommended that the Coast Guard strike the 
requirements, or make modifications to the requirements, related to an 
owner or operator's submission of proposed amendments to the 
Cybersecurity Plan. Some commenters suggested tailoring this to 
``material'' or ``significant'' changes.
    In this final rule, the Coast Guard did not remove this 
requirement, as it is consistent with existing practice and 33 CFR 
parts 104, 105, and 106. However, we revised Sec.  101.630 to remove 
ambiguity by eliminating the term ``major amendment,'' as well as the 
associated requirement that changes to the Cybersecurity Plan must be 
proposed to the Coast Guard before implementation, as discussed above. 
We added language to Sec.  101.630(e)(2)(i) to address situations when 
an owner or operator may feel that security measures are needed while 
an amendment is under review by the Coast Guard.
    One commenter stated that it was not clear to the owner, operator, 
or CySO whether they submit their Cybersecurity Plan to the COTP or 
OCMI, or to the U.S. Coast Guard's MSC.
    Under Sec.  101.625(d)(13), and according to Sec.  101.630(d), the 
CySO must ensure the owner or operator submits the Cybersecurity Plan 
for approval to the cognizant COTP or OCMI for facilities or OCS 
facilities, or to the MSC for U.S.-flagged vessels.
    One commenter suggested removing the requirement that the CySO 
include ``a letter certifying that the plan meets the requirements of 
this subpart must accompany the submission'' under Sec.  101.630(d).
    The Coast Guard agrees with this recommendation, as submitting the 
Cybersecurity Plan itself qualifies as certification that the Plan 
meets all the requirements. The Coast Guard revised Sec.  101.630(d) to 
remove the requirement to send this letter.
    One commenter requested clarification on whether the Cybersecurity 
Assessment and Cybersecurity Plan could be done separately from the 
existing requirements for conducting an Assessment and Plan according 
to 33 CFR parts 104, 105, and 106. Additionally, they sought 
clarification on how this final rule affects Sec.  105.305(c)(1)(iv) 
for existing security measures and procedures relating to services and 
utilities, and Sec.  105.305(d)(2)(v) for radio and telecommunication 
systems, including computer systems and networks.
    This final rule allows for regulated U.S.-flagged vessels, 
facilities, and OCS facilities to choose whether to incorporate 
Cybersecurity Assessments and Cybersecurity Plans into their existing 
assessments and plan submissions, or to submit them as separate 
documents. Nothing in this final rule is meant to replace existing 
regulations, and regulated entities should ensure compliance with all 
applicable regulations. In the event there is overlap, entities may 
identify where requirements are being simultaneously satisfied. We 
revised the definition in Sec.  101.615 of Cybersecurity Plan and the 
reference to Plan submission in Sec.  101.630(a) to clarify that 
separate submissions are acceptable.
    Several commenters recommended adopting various specific standards, 
such as the NIST CSF, NIST's special publications, the Defense 
Counterintelligence and Security Agency's National Industrial Security 
Program, DoD's Cybersecurity Maturity Model Certification program 2.0, 
IEc 62443, IMO, ISO/IEc 17020, the International Association of Ports 
and Harbors' Cybersecurity Guidelines for Ports and Port Authorities, 
the International Association of Classification Societies' (IACS) 
Unified Requirements (UR) E26 and E27, the North American Electric 
Reliability Corporation's CIP-013, and the American Bureau of 
Shipping's (ABS) Cyber Resilience Program for vessels. Other commenters 
inquired about leveraging third-party inspection standards, such as 
ISO/IEc 17020. One commenter stated that this final rule's minimum 
cybersecurity requirements and the ABS' Cyber Resilience Program for 
vessels both leverage the NIST CSF and IEc 62443 and appear to be 
directing the same efforts under the same framework. They inquired 
about ABS and Coast Guard collaboration and alignment on these efforts.
    The Coast Guard intentionally created this final rule to allow 
flexibility in implementing a CSF. In developing this final rule, the 
Coast Guard leveraged CISA's Cyber Performance Goals, which themselves 
are mapped to NIST's CSF, but this does not preclude owners and 
operators of U.S.-flagged vessels, facilities, and OCS facilities from 
using other resources. Owners and operators may use NIST's standards or 
other standards and frameworks to help inform how they comply with the 
mandatory requirements in this final rule. This final rule provides 
minimum baseline requirements, but we encourage affected entities to 
include items in their Cybersecurity Plan that they deem in their best 
interest to enhance cybersecurity. Each Plan will be evaluated by the 
cognizant COTP or the OCMI for facilities and OCS facilities, and the 
MSC for U.S.-flagged vessels to ensure it meets the Coast Guard 
requirements.
    The Coast Guard acknowledges that there are many third party and 
international standards and frameworks that could be used to meet the 
regulations. The owner or operator may use ABS or other third-party 
frameworks to assist them in meeting the Coast Guard's requirements, 
though this approach does not guarantee automatic acceptance or 
approval by the Coast Guard. However, the Coast Guard retains all 
statutory functions under MTSA and international responsibilities under 
the International Ship and Port Facility Security Code. At this time, 
we do not intend to delegate any functions to third parties under this 
final rule.
    One commenter stated that the current format, which closely follows 
the regulatory format of 33 CFR parts 104, 105, and 106, was not well-
suited for cybersecurity requirements, and that something more in line 
with NIST's Framework would be better.
    The Coast Guard has chosen to articulate the cybersecurity 
requirements within 33 CFR part 101 because these regulations impact 
U.S.-flagged vessels, facilities, and OCS facilities collectively. This 
format is presented in a more organized and accessible manner to the 
maritime partners who are familiar with the MTSA regulations. 
Additionally, Sec.  101.650 lists cybersecurity measures that are based 
on CISA's CPGs, which are aligned with NIST's CSF. This approach 
ensures clarity and facilitates easier compliance, allowing 
stakeholders to view all pertinent

[[Page 6319]]

cybersecurity regulations in a single, consolidated section.
    One commenter felt that certain areas of the NPRM were too 
prescriptive, and that the Coast Guard should take an outcome-based 
approach of the appropriate NIST CSF function.
    Pursuing an outcome-based approach was not feasible based on 
necessary timelines to develop and implement cybersecurity measures, 
and the Coast Guard feels that its rules strike the best balance of 
prescriptiveness because they are based on existing MTSA regulations 
and existing interagency guidelines generally accepted by industry. We 
recognize that some stakeholders may feel the requirements are too 
prescriptive, while others commented that the requirements were not 
prescriptive enough. The cybersecurity measures listed in Sec.  101.650 
are based on CISA's CPGs, which are performance-based goals and 
recommended actions and align with the NIST CSF. This approach ensures 
clarity and facilitates easier compliance, allowing stakeholders to 
view all pertinent cybersecurity regulations in a single, consolidated 
section. The Coast Guard acknowledges that there are many third-party 
and international standards and frameworks that could be used to meet 
the regulations. Owners and operators of U.S.-flagged vessels, 
facilities, and OCS facilities may base their Cybersecurity Plan on a 
standard or framework that they prefer and explain how the requirements 
of this final rule are met.
    One commenter requested that the Coast Guard update language in the 
regulations to clarify that the CySO does not conduct audits but is 
limited to ensuring audits are conducted. Another commenter asked for 
clarification on the scope of the audit the CySO must perform.
    The Coast Guard agrees with this suggestion and revised Sec.  
101.630(f)(2) in this final rule to clarify that the CySO does not 
conduct the audit themselves and that the CySO must only ensure that an 
audit is conducted. The Coast Guard did not add the additional language 
to the regulatory text defining the term audit as it allows for 
flexibility in how the regulated entity conducts their audit. The 
regulatory text in Sec.  101.630(f) is in line with existing audit 
requirements in 33 CFR parts 104, 105, and 106.
    One commenter expressed support for Cybersecurity Assessments being 
part of the Cybersecurity Plan renewal every 5 years when there is a 
change in vessel or facility ownership, or there are major amendments 
to the Cybersecurity Plan. However, they disagreed with requiring a 
Cybersecurity Assessment annually, citing that annual Cybersecurity 
Assessments are excessive for small businesses.
    The Coast Guard did not make changes to the frequency required for 
Cybersecurity Assessments. We believe that annual Cybersecurity 
Assessments are important for regulated entities to continually monitor 
for cybersecurity developments pursuant to Sec.  101.650(e). The 
cybersecurity environment can change so rapidly that conducting a 
Cybersecurity Assessment less frequently than annually could lead to 
vulnerabilities going unnoticed, with potentially drastic consequences. 
Moreover, the NIST guidelines state that risk assessments such as this 
should be conducted no less than annually. We expect that entities with 
a smaller or less complex IT and OT footprint will have shorter 
Cybersecurity Assessments with annual assessments.

G. Comments Related to Drills and Exercises

    We received many comments about requirements for drills and 
exercises. Several commenters asked about the frequency and scope of 
drills and exercises. Some commenters from regulated entities noted 
that quarterly drills and annual exercises seemed excessive for 
smaller, seasonal operators and low-risk MTSA-regulated entities. These 
commenters suggested that quarterly drills and annual exercises would 
create an excessive time and resource burden on those entities, 
especially those with limited cyber exposure. One commenter noted that 
the biggest security threats facing a domestic passenger vessel remain 
a physical breach of security and suspicious individuals or activities 
associated with criminal activity and not cyber activities.
    Other commenters referenced existing drills and exercise 
requirements for MTSA-regulated entities and recommended that the Coast 
Guard allow for overlap with new cybersecurity drills and exercises and 
existing required drills and exercises. Commenters also suggested that 
drills should be conducted at the organizational level rather than at 
the vessel or facility level. One commenter asked if drills are 
expected to be a comprehensive test of the Cybersecurity Plan, meaning 
the entirety of cybersecurity capabilities outlined in the 
Cybersecurity Plan. Another commenter expressed confusion regarding 
exercise requirements and tabletop simulation. One commenter stated 
that separate drill requirements were excessive and unnecessary.
    Another commenter requested further explanation on required crew 
involvement. The commenter explained that onboard personnel have little 
to no involvement in cyber-specific drills and recommended the Coast 
Guard provide further explanation on the intent and extent of crew 
involvement with these drills.
    The Coast Guard believes that, while different stakeholders have 
varying IT and OT footprints, it remains critical to incorporate some 
level of drills and exercises to ensure that owners, operators, and 
regulated entities are prepared to prevent and respond to increasing 
cybersecurity threats. After considering these comments, in this final 
rule, we have adjusted the frequency of conducting drills from 
quarterly to twice each calendar year. We believe that two drills 
annually will ensure sufficient proficiency with the procedures, while 
allowing for a regulated entity to conduct additional drills if they 
choose to, and we understand how quarterly drills and exercises could 
be too frequent for some vessel operations, as noted by some 
commenters. The Coast Guard felt that one drill annually would not be 
sufficient, while requiring three drills annually would not be a 
significant decrease from the original requirement of four drills 
annually. We also clarified that cybersecurity drills required under 
this part may be performed in conjunction with existing MTSA-required 
drills and exercises. We decided to maintain annual exercises but will 
also similarly allow exercises to be performed in combination with 
existing MTSA-required exercises.
    While owners and operators are authorized to conduct drills at the 
organization level, each vessel, facility, and OCS facility has unique 
risks and operators at the vessel, facility, and OCS facility level 
should be experienced in addressing those unique vulnerabilities and 
prepared to respond to such incidents appropriately. This final rule 
states that drills should test individual elements of the Cybersecurity 
Plan and, therefore, are not a comprehensive test of the entirety of 
cybersecurity capabilities. The Coast Guard feels that tabletop 
exercises, if selected by the regulated entity to comply with our 
requirements, can serve as a full test of the CSF. This is similar to 
tabletop exercises under Sec. Sec.  104.230(c)(2)(ii), 
105.220(c)(2)(ii), and 106.225(c)(2)(ii), as participants can discuss 
and simulate the implementation of specific measures found within the 
Cybersecurity Plan.
    The Coast Guard believes that this final rule provides the 
necessary level of detail on the requirements on the

[[Page 6320]]

conduct and elements of drills and exercises. This final rule allows 
each regulated entity the flexibility to determine the specific drills 
and exercises they wish to conduct. Additionally, individual 
stakeholders can determine the level of crew involvement in drills and 
exercises based on individual crew and employee roles and 
responsibilities within the organization.
    Furthermore, the Coast Guard understands that each U.S.-flagged 
vessel, facility, and OCS facility operates facing different 
cybersecurity risks. Owners and operators may seek an exemption or 
waiver using the procedures in Sec.  101.665. This flexibility is 
intended to accommodate varying levels of risk and operational needs 
across different U.S.-flagged vessels, facilities, and OCS facilities.

H. Comments Related to Records and Documentation

    One commenter noted that the 2-year recordkeeping mandate could be 
quite costly compared to its value proposition.
    The 2-year recordkeeping requirement is consistent with the 
existing regulations and aligns with incorporating the Cybersecurity 
Plan into a VSP, FSP, or OCS FSP if a regulated entity chooses to 
include the Cybersecurity Plan as part of their VSP, FSP, or OCS FSP. 
The Coast Guard recognizes that there may be varied costs associated 
with record keeping but expects that these additional records would be 
maintained similar to the existing records and could prove important in 
the event of a future cyber incident.
    One commenter requested clarification on what the Coast Guard was 
not obtaining from covered entities' use of the Cyber Annex--which 
supports an FSP and OCS FSP--under the MCAAG.
    The Cyber Annex was intended to provide only initial cyber guidance 
based on the regulations available at the time. Moreover, the MCAAG is 
only a voluntary ``how-to'' guide and is not, itself, a regulation. The 
Coast Guard recognizes that further actions are needed to better secure 
the MTS from cyber threats and vulnerabilities. This final rule is the 
next step for a new suite of baseline requirements specific to 
cybersecurity that go beyond what was addressed previously in the 
regulations and earlier guidance documents.
    Some commenters expressed concerns over omitting FSP and OCS FSP 
Cyber Annexes in the new regulatory framework and the implications for 
companies that have already invested resources in developing these 
annexes.
    The existing requirement for the owners and operators of MTSA-
regulated facilities and OCS facilities to analyze vulnerabilities 
associated with radio and telecommunication equipment, including 
computer systems and networks, allows an owner or operator to 
demonstrate compliance in a variety of formats. The information may be 
provided in a separate Cyber Annex to the FSP or OCS FSP, or 
incorporated into the FSP or OCS FSP together with the physical 
security measures. Regulated entities who chose to create a separate 
Cyber Annex may use the content of the existing Cyber Annex to help 
develop a Cybersecurity Plan that reflects all cybersecurity measures 
required in subpart F, as appropriate, to mitigate risks identified 
during the Cybersecurity Assessment. As noted in Sec.  101.630(a), the 
Cybersecurity Plan may be included in an existing VSP or FSP or VSP or 
FSP annex. This final rule amended Sec.  101.630(a) to clarify that the 
Cybersecurity Plan may also be included in an OCS FSP, part of an 
approved ASP, annex to the OCS FSP, or may be provided in a separate 
submission (but is still considered a part of the VSP, FSP, or OCS 
FSP).
    The Coast Guard believes that this final rule provides sufficient 
information for regulated entities to comply with requirements for a 
Cyber Incident Response Plan. The term is defined in Sec.  101.615, and 
the requirements for inclusion are described in Sec. Sec.  
101.620(b)(6), 101.625(d)(4), and 101.650(g)(2).
    One commenter noted that some ship OT systems have cybersecurity 
requirements as mandated by the DoD and noted that some required 
compliance elements pose a documentation duplication effort. They asked 
what exceptions would be considered for those having to meet DoD 
requirements.
    The Coast Guard recognizes that cybersecurity requirements of other 
Federal agencies may be similar to these requirements. However, due to 
the specific nature of maritime cybersecurity considerations while 
operating in the MTS, the Coast Guard requires documentation 
specifically showing compliance with these regulations. At this time, 
we are not considering blanket compliance exemptions for regulations of 
other Federal agencies. Owners or operators may use this similar, but 
separate, compliance to inform their compliance with Coast Guard 
regulations.

I. Comments Related to Communications

    One commenter noted that it was important to foster open 
communication and explore diverse solutions for information sharing and 
collaboration across stakeholders.
    The Coast Guard agrees and encourages interested stakeholders to 
communicate and explore information-sharing solutions. These 
regulations are intended to establish certain baseline requirements 
that establish a common regulatory framework for all stakeholders to 
have those discussions.

J. Comments Related to Incident Reporting

    The Coast Guard received numerous comments in response to our 
request for input on the reporting of cybersecurity incidents and 
whether those reports should be made to the Coast Guard through the NRC 
or to CISA. Commenters were split between the two options, with some 
citing the existing requirement to report security incidents to the NRC 
as a reason to maintain this process, while others cited the proposed 
requirements of CISA's CIRCIA rulemaking project. One commenter 
suggested that reporting to CISA be updated to a 72-hour requirement, 
whereas other comments suggested that the reporting be delayed until a 
cybersecurity incident has been investigated by an entity. Another 
commenter suggested that Global Positioning System (GPS) jamming and 
spoofing should be included as incidents that require mandatory 
reporting. One commenter suggested reporting to the Defense Cyber 
Crimes Center (DC3)/DoD-Defense Industrial Base Collaborative 
Information Sharing Environment (DCISE). One commenter suggested that 
reporting should not be directed to the NRC due to the NRC being short-
staffed and not suited to receive the incident reports. One commenter 
noted that CISA is already in a position to catalog such reports and 
share critical information with those impacted in both private industry 
and Government sectors, as this is part of their current mission.
    One commenter cited the various reporting requirements of CIRCIA's 
proposed rulemaking,\55\ the Coast Guard's NPRM, Executive Order 14116 
(Amending Regulations Relating to the Safeguarding of Vessels, Harbors, 
and Waterfront Facilities of the United States), along with the Coast 
Guard's NVIC 02-24 and Policy Letter 08-16. The commenter requested 
that the Coast

[[Page 6321]]

Guard work with CISA, who is less familiar with the maritime industry, 
and deconflict the reporting requirements. In response to whether the 
Coast Guard should require reporting of ransomware payments, one 
commenter stated that they did not feel this would be wise. Other 
commenters stated that they felt that ransomware and related payments 
should indeed be reported. One commenter expressed concern with 
reporting of incidents or KEVs between CySOs, noting that information 
specific to a company should not be shared with other companies.
---------------------------------------------------------------------------

    \55\ 89 FR 23644, April 4, 2024.
---------------------------------------------------------------------------

    One commenter asked how the Coast Guard intended to share reported 
information with all regulated entities. Another commenter similarly 
suggested that the Coast Guard establish procedures within these 
regulations for the reporting of Government incidents to other parties. 
One commenter expressed concern that NRC personnel who will take 
reports of cybersecurity incidents might not be specialized in 
cybersecurity or have the appropriate knowledge and experience; 
therefore, NRC personnel would be unequipped to take reports of 
cybersecurity incidents. One commenter expressed concern about the 
limitations for vessels when reporting an incident to the NRC via 
telephone. The commenter noted that vessels might have limited internet 
connections and requested that the Coast Guard allow alternative 
communication methods such as very high frequency (VHF) or 
International Maritime Satellite (INMARSAT) as options for reporting to 
the NRC.
    With this final rule, the Coast Guard is expecting reportable cyber 
incidents be reported to the NRC only by those entities not already 
required to report cyber incidents under 33 CFR 6.16-1, as amended by 
Executive Order 14116. Title 33 of the CFR, part 6.16-1, requires the 
reporting of evidence of sabotage, subversive activity, or an actual or 
threatened cyber incident involving or endangering any vessel, harbor, 
port, or waterfront facility, which includes all current MTSA-regulated 
U.S. vessels and facilities regulated by this rule. 33 CFR part 6.16-1 
does not apply to OCS facilities regulated under 33 CFR part 106. 
Therefore, those OCS facilities are subject to the reporting 
requirements of this rule. Reporting to the NRC by these entities is in 
line with established requirements and timelines, including under Sec.  
101.305. It also enables a timely response to incidents by the Coast 
Guard, as well as partner agencies with whom the NRC shares incident 
reports immediately upon receipt. To minimize duplicative reporting 
from the same entity, the requirement to report under this final rule 
does not apply if the entity has reported the cybersecurity incident to 
the Coast Guard pursuant to 33 CFR 6.16-1, highlighting that because 
OCS facilities are not subject to the reporting requirements in 33 CFR 
part 6, OCS facilities must report cyber incidents to the NRC under 
this final rule.
    Entities subject to reporting cybersecurity incidents under 33 CFR 
6.16-1 must also report to the FBI and CISA, and they may also be 
subject to reporting to CISA under CIRCIA once the final rule is 
published and effective. The Coast Guard and CISA are committed to 
minimizing the burden on entities and will assess the need for 
additional policy guidance regarding the content of reports and the 
mechanism for reporting to satisfy applicable requirements in this 
part, Sec.  101.305, 33 CFR part 6, and the CIRCIA final rule to be 
issued by CISA. The Coast Guard and CISA are committed to proactively 
collaborating and issuing guidance to entities to harmonize cyber 
reporting requirements to the extent possible and to clarify procedures 
for reporting cyber incidents to the Coast Guard and to CISA, 
respectively under current regulations, as well as in the future once 
CIRCIA's regulations take effect.
    Cyber incident reports to the Coast Guard and CISA serve 
complementary but distinct operational purposes that are consistent 
with each agency's respective missions and authorities. Reports to the 
Coast Guard ``without delay'' under this part, Sec.  101.305, and 33 
CFR part 6 serve as an immediate notification to support the rapid 
response to events that may result in a TSI. Notifications to the NRC 
are immediately shared with CISA, FBI, and other relevant agencies to 
allow for the earliest mobilization of response and resources. Cyber 
incidents can quickly escalate and evolve, and any delays to the 
reporting can affect the ability to successfully respond to an 
incident. Reporting to the NRC without delay allows the Coast Guard 
COTPs to understand the potential risks of an incident and apply their 
authority to protect the MTS, including the use control and compliance 
measures as provided at Sec.  101.410. In many cases, the goal of the 
initial response is to ensure public safety, mitigate the consequences 
of disastrous events, or prevent cascading impacts on critical 
infrastructure or the public. This includes but is not limited to 
minimizing loss of life and property, preventing environmental 
disasters or other accidents at sea, assisting in the recovery of 
critical IT or OT systems at ports or other facilities, defending the 
sovereignty of the United States, and facilitating legitimate use of 
maritime waterways. After the initial response, the notifications 
enable the Coast Guard to evaluate the broader risks to the MTS based 
on the specific vulnerability.
    Separate from the Coast Guard's authorities under MTSA, but 
consistent with what Congress has envisioned in CIRCIA, reporting 
``covered cyber incidents'' to CISA under its future regulation within 
72 hours of having a reasonable belief that such an incident occurred 
(and ransom payments resulting from a ransomware attack within 24 hours 
of the payment being made) serves a complementary but distinct 
operational purpose from Coast Guard reporting requirements. As the 
lead agency for Federal cybersecurity and the national coordinator for 
critical infrastructure risk and resilience, CISA is well-positioned to 
support Coast Guard cyber related operations and address cross-sector 
cyber risk more broadly under its forthcoming CIRCIA regulations. By 
collecting more technical information via the CISA incident report then 
was collected by the NRC in the initial report and cross-referencing 
that information with other incidents reported in other critical 
infrastructure sectors, CISA can support the Coast Guard's operations, 
assist other entities in the MTS in mitigating exploited 
vulnerabilities, quickly identify other entities that may be at risk 
across critical infrastructure sectors, automate sharing information 
across the public and private sectors to protect against similar 
incidents in the future, and counter sophisticated cyber campaigns 
earlier.
    CISA's further sharing of reported threat activity and impact 
information (for example, techniques, tactics, and procedures used to 
cause physical, functional, or informational impacts) will enable other 
Federal and non-Federal stakeholders to more effectively allocate 
resources and inform the development of more secure products. 
Furthermore, reporting incidents to CISA under the CIRCIA final rule 
will improve the U.S. Government's collective visibility into the 
national cyber threat landscape and close critical information gaps.
    The Coast Guard does not specify specific incident types in this 
final rule but relies on the definition of reportable cyber incidents, 
as well as existing definitions for breaches of security and 
transportation security incidents, as defined in Sec.  101.105, and 
suspicious activity as described in Sec.  101.305.
    The Coast Guard through this final rule is not requiring reporting 
to any entity outside of the NRC, such as DC3

[[Page 6322]]

or DCISE, as the NRC already has an established process and 
relationship with the regulated entities affected by this final rule.
    The Coast Guard disagrees that the NRC would be unable to 
accommodate reported cybersecurity incidents. The NRC already receives 
reports of cybersecurity incidents according to the reporting 
requirements of Sec.  101.305, which includes cybersecurity.
    The Coast Guard agrees that reporting requirements, including those 
of existing MTSA regulations, this final rule, and the recent Executive 
Order 14116 updating 33 CFR 6.16-1 on cybersecurity, should be 
harmonized to the extent practicable and in accordance with the law. 
Policy Letter 08-16 was superseded by NVIC 02-24, which provides 
guidance on existing MTSA reporting requirements as well as those 
addressed by the recent Executive Order. The Coast Guard will work with 
partner agencies to maximize harmonization and alignment with this 
final rule to the extent practicable by assessing the need for new 
policy guidance regarding reporting requirements under this final rule, 
33 CFR 6.16-1, and the CIRCIA final rule to be issued to CISA.
    The definition for a reportable cyber incident provides regulated 
entities with sufficient information to determine when to report a 
ransomware incident. The Coast Guard did not add a requirement for the 
reporting of a ransomware payment. Note that a separate requirement to 
report ransom payments to CISA may be included in the forthcoming 
CIRCIA final rule issued by CISA.
    In Sec.  101.650(e)(3)(iii), this final rule requires each owner or 
operator of a regulated entity to maintain a method to share threat and 
vulnerability information with external stakeholders, but does not 
require sharing information with private companies that have no 
relationship with the regulated entity or do not have a role in 
facilitating cybersecurity response or the cybersecurity posture of the 
regulated entity.
    The requirements in this final rule for reporting cybersecurity 
incidents apply to U.S.-flagged vessels, facilities, and OCS facilities 
and detail how to report to the Government. This final rule does not 
establish requirements for the Government to share information with the 
public, and the Coast Guard does not intend to immediately share 
cybersecurity incident reports from a regulated entity with other 
private stakeholders. If needed, the Coast Guard or other agencies can 
develop bulletins, advisories, or other guidance to address 
cybersecurity threats, risks, and vulnerabilities that may be 
discovered. Similarly, this final rule does not establish processes or 
procedures for the Government to report its own incidents to the 
public, as this final rule only addresses requirements for those 
entities addressed under the Applicability section in Sec.  101.605.
    The Coast Guard disagrees with any suggestion that NRC personnel 
would be unable to take a report of a cybersecurity incident. NRC 
personnel stand watch 24 hours a day, 7 days a week, receive 
cybersecurity incident reports according to Sec.  101.305, and have 
demonstrated the capability to collect the necessary required 
information made in an initial incident report. Upon receipt of the 
incident report, the NRC immediately shares the information with the 
Coast Guard Cyber Command (CGCYBER), DHS, CISA and other relevant 
Government agencies that have the specialization, knowledge, and 
experience to conduct any further follow up after the initial report.
    The Coast Guard is not prescribing an alternative reporting process 
through VHF or INMARSAT, but this final rule does not limit the 
reporting of reportable cyber incidents by telephone only and affirms 
reports can be made by any means necessary. Vessels without 
connectivity are encouraged to use alternative methods to contact their 
designated person ashore to assist with reporting the incident without 
delay.
    One commenter suggested that a vessel's RO be the one to report 
cyber issues to the Coast Guard.
    The Coast Guard disagrees with this suggestion. This final rule 
provides sufficient clarification as to which entities should be 
reporting in each situation (for example, an assessment, audit, or a 
reportable cyber incident), and is consistent with existing MTSA 
regulations.
    One commenter recommended that organizations develop tiered levels 
of cyber incident events and incidents in their Cyber Incident Response 
Plan.
    The Coast Guard agrees that owners and operators of U.S.-flagged 
vessels, facilities, and OCS facilities should take the approach that 
best suits their needs when developing their Cyber Incident Response 
Plan. However, the Coast Guard does not prescribe any specific 
requirements in this final rule. While a tiered approach to cyber 
incident reporting can provide structure, it may inhibit the 
adaptability and responsiveness that are crucial for effectively 
managing cyber incidents in a rapidly evolving threat landscape. The 
Coast Guard prefers owners and operators to customize their incident 
response plans to meet their unique needs and requirements.

K. Comments Related to Cybersecurity Measures (Sec.  101.650)

    One commenter requested that Sec.  101.650 for cybersecurity 
measures include a caveat that, in situations when security measures 
might create safety risks, then the safety concern is to be 
prioritized.
    The Coast Guard appreciates the concern for safety, and we do not 
intend for these regulations to conflict with other Coast Guard 
regulations for safety. The Coast Guard does not foresee a degradation 
in physical safety caused by these cybersecurity regulations and 
believes it would generate confusion if an undefined safety-based 
caveat were included. If owners or operators have concerns with 
specific application of the cybersecurity regulations, the Coast Guard 
encourages those owners and operators to discuss with the cognizant 
COTP, OCMI, or MSC, as appropriate. This final rule provides procedures 
for requesting equivalencies or waiver from the Coast Guard, if 
appropriate, in Sec.  101.665.
    One commenter suggested that cybersecurity measures be incorporated 
for heightened threat periods.
    The Coast Guard has issued these regulations as baseline 
cybersecurity requirements, as cybersecurity can pose a risk at all 
times, even under normal threat periods. The Coast Guard encourages 
owners or operators of U.S.-flagged vessels, facilities, and OCS 
facilities to address and incorporate cybersecurity measures for 
heightened threat periods, if desired and as best fits their needs. The 
Coast Guard is also able to issue cybersecurity guidance or directives 
as needed, if there are specific threats and incidents. At this time, 
we do not believe that any specific and standing requirements for 
heightened threat periods should be added to this final rule.
    One commenter requested that the Coast Guard add language specific 
to GPS denial and spoofing, and Automatic Identification System (AIS) 
and timing concerns.
    The Coast Guard is not including a definitive list of systems and 
equipment in this final rule. We encourage affected entities to address 
those vulnerabilities which they identify in their own Assessments, or 
are otherwise concerned about, and to tailor drills and exercises to 
those areas where they have the most concern, which may include GPS 
denial and AIS spoofing. We also do not mandate training or drills on 
specific vulnerabilities or threats.

[[Page 6323]]

    One commenter asked why outdated CPGs were used for the NPRM.
    At the time the Coast Guard initially developed these regulations, 
Version 1.0 of CISA's CPGs were the most recent. The Coast Guard 
conducted an analysis to identify any significant changes between 
versions 1.0 and 2.0 and made changes to the regulatory text where 
appropriate. Only minor changes were needed. The Coast Guard will 
continue to monitor CISA's efforts related to CPGs to determine whether 
a subsequent rulemaking will be needed in the future.
    One commenter suggested that the Coast Guard should clarify how 
this final rule applies to facilities already regulated by other 
authorities, particularly TSA's Security Directives. The commenter also 
suggested that docking ship connections be limited to systems essential 
for mooring, emergency operations, and ship-to-shore communications.
    If an owner or operator is concerned that it may be subject to 
TSA's requirements and needs clarification on harmonizing compliance 
between TSA and Coast Guard requirements, they should notify the 
cognizant COTP or OCMI. If appropriate, the Coast Guard will consider 
procedures for waivers or equivalents in Sec.  101.665 or have 
additional conversations with TSA. The Coast Guard is not placing 
specific requirements on what docking ship connections are allowed, and 
instead leaves this determination to the owner or operator.
    One commenter recommended inclusion of additional requirements for 
logs, as well as a Shipboard Security Information and Event Management. 
They further recommended requirements for post-shipyard inspections and 
maintenance, particularly after a vessel departs an adversarial port.
    The Coast Guard seeks to strike a balance and chose not to impose 
requirements that would be so prescriptive that compliance would be too 
difficult for some segments of the regulated industry. These 
requirements generally provide latitude for owners, operators, or CySOs 
to determine the specific means needed to comply with the regulatory 
requirements. These regulations represent minimum baseline 
requirements, but the Coast Guard encourages regulated entities to take 
any additional actions they feel are necessary to address their 
cybersecurity needs, so long as such additional cybersecurity measures 
are documented in their Cybersecurity Plans.

L. Comments Related to Account Security Measures (Sec.  101.650(a))

    Some commenters requested changes to the section on account 
security measures, seeking to modify requirements for account lockout, 
multifactor authentication, and user credentials as they relate to 
certain OT systems. They expressed concerns that these measures could 
disrupt critical operations, deny access during emergency situations, 
and potentially be exploited by malicious actors to halt operations. 
One commenter suggested an outcome-based requirement for OT systems 
because the prescriptive approach may not suit many organizations and 
could quickly become outdated due to advancing technology.
    The Coast Guard reviewed Sec.  101.650(a) and revised specific 
requirements as appropriate, as they relate to OT systems. In some 
cases, we maintained the proposed text in line with CISA's CPGs, 
recognizing what provided the best level of cyber protection. The Coast 
Guard recognizes that OT systems may have unique considerations that 
are different from IT systems. The Coast Guard agrees that automatic 
account lockout in OT systems could have catastrophic consequences in 
emergency situations. We adjusted these requirements to reflect updates 
that CISA provided to its CPGs based on public comments they received. 
These updated requirements took into consideration the concerns noted 
in public comments that certain items, such as account lockout and 
multifactor authentication when applied to OT systems, could result in 
the concerns noted by the public comments.\56\ Based on this review, we 
revised Sec.  101.650(a)(1) to remove the references to OT systems and 
automatic account lockout due to failed logins.
---------------------------------------------------------------------------

    \56\ See <a href="https://www.cisa.gov/cybersecurity-performance-goals">https://www.cisa.gov/cybersecurity-performance-goals</a>, 
accessed November 12, 2024.
---------------------------------------------------------------------------

    The Coast Guard disagrees that these requirements are too 
prescriptive. The Coast Guard reiterates that these regulations 
represent minimum baseline requirements, and owners and operators are 
welcome to take additional actions and measures as they deem necessary 
or appropriate to best protect their systems and equipment. In cases 
when owners or operators do not feel that they can comply with account 
security measures, or that they feel a requirement is unnecessary, they 
may submit a request for a waiver or equivalent using the procedures in 
Sec.  101.665.
    One commenter noted the benefits of zero-trust architecture. Some 
commenters noted the importance of logs in detecting and responding to 
cyber-attacks and recommended that we accept next-generation logging 
capabilities. One commenter offered an example of one such system.
    The Coast Guard notes that zero-trust architecture is one of many 
solutions that organizations may choose to use to comply with this 
final rule. The Coast Guard does not prescribe specific systems or 
equipment or ways to comply with these requirements. The Coast Guard 
recognizes that there are multiple systems, equipment, and products 
available, and it is up to the owner or operator to identify the option 
that best suits their needs while ensuring they meet the requirements 
of this final rule.
    Some commenters expressed concern with multifactor authentication 
on vessels. They stated that the owner or operator should have 
flexibility to adequately and specifically address this, rather than a 
prescriptive approach. These commenters noted it is challenging 
especially for internationally operating vessels with a constantly 
changing crew and limited or no access to internet while in transit. 
They also stated that providing mobile phones to the crew is not 
advisable, noting that encouraging the use of personal devices may lead 
to significant resistance. The commenters believed that an alternative, 
such as hardware tokens for two-factor authentication, presents 
challenges, including distribution, configuration, and the risk of 
tokens being misplaced. Another commenter requested that multifactor 
authentication only be in place for remote access from untrusted 
networks into OT systems according to IACS UR E27 \57\ for new ships, 
and with an implementation period for existing ships.
---------------------------------------------------------------------------

    \57\ IACS UR E27, Cyber Resilience of On-Board Systems and 
Equipment, press release information available at: <a href="https://iacs.org.uk/news/iacs-ur-e26-and-e27-press-release">https://iacs.org.uk/news/iacs-ur-e26-and-e27-press-release</a>, accessed August 
16, 2024.
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    The Coast Guard recognizes that measures such as two-factor 
authentication may pose unique challenges to vessels, but also notes 
that there are multiple ways to implement multifactor authentication 
that do not require internet access. While carriers may not currently 
provide phones or other devices for this purpose, the nature of this 
being new rulemaking lends itself to the realization that owners and 
operators may have to take actions and steps that were not previously 
done, if that is how they determine they can best comply with the 
regulations. It is up the owner or operator to implement appropriate 
multifactor authentication given their

[[Page 6324]]

business operations and accessibility to internet connectivity. Such 
multifactor authentication may include a variety of methods, including 
passwords, physical devices such as security tokens or access cards, or 
biometrics. Additionally, as is the case for all requirements in this 
final rule, if an owner or operator has reviewed all possible options 
and determines that they cannot comply with any aspect of the 
regulations, they may follow the process for requesting a waiver or 
equivalence. The Coast Guard is not relaxing the requirements further 
for U.S.-flagged vessels. If owners or operators do not feel that they 
can comply with account security measures, they may submit a request 
for a waiver or equivalent using the procedures in Sec.  101.665.
    One commenter requested clarification on the use of passwords; if 
they are required, and, if so, what the requirements for them would be.
    The Coast Guard does not mandate the use of a password, only that 
if passwords are used or if a system is capable of password protection, 
the passwords are of sufficient strength and meet certain criteria to 
help defend against cyber-attacks based on the criticality of the 
system as described in Sec.  101.650(a).

M. Comments Related to Device Security Measures (Sec.  101.650(b))

    One commenter expressed concern about including a network map in 
the Cybersecurity Plan.
    The Coast Guard recognizes the sensitivity of network maps. We 
revised Sec.  101.650(b) to clarify that each owner or operator or 
designated CySO of a U.S.-flagged vessel, facility, or OCS facility 
must ensure the device security measures are in place, addressed in 
Section 6 of the Cybersecurity Plan, and made available to the Coast 
Guard upon request. Therefore, network maps do not need to be submitted 
with the Plan, but they must be maintained by the regulated entity and 
made available to the Coast Guard upon request.
    One commenter noted that far too few entities have inventoried 
their IT and OT assets and supported the requirement to maintain an up-
to-date asset inventory. The commenter also noted that recognizing the 
unique needs and limitations of OT environments is essential for 
effective cybersecurity regulation and implementation. Finally, the 
commenter strongly supported the requirement for owners and operators 
of covered infrastructure to designate and inventory critical IT and OT 
systems. The commenter noted, however, that frequent IT patches and 
updates are impractical in OT environments, as they can disrupt 
critical operations and complicate compatibility testing due to real-
time demands.
    The Coast Guard appreciates the support for an IT and OT system 
inventory. It is up to the owner or operator to determine the frequency 
at which OT patches and updates are conducted according to their 
Cybersecurity Plan to mitigate the risks identified in their 
Cybersecurity Assessment.
    Several commenters indicated concerns regarding requirements 
relating to OT systems. Paragraph (e)(3)(v) of Sec.  101.650 indicates 
that no OT system is to be connected to the publicly accessible 
internet unless explicitly required for operation, if there is 
documented justification. However, the commenters noted that an OT 
system connected to the internet can transmit machine data to the 
manufacturer, enabling the manufacturer to offer Smart Planned 
Maintenance decision support to the owner.
    The Coast Guard appreciates these concerns and notes that each 
situation will be evaluated on its own merits on a case-by-case basis. 
Regulated entities may discuss specific concerns with the cognizant 
COTP, OCMI, or the MSC as appropriate. An owner or operator may also 
request a waiver or equivalence determination for the requirements 
according to the procedures in Sec.  101.665.
    Several commenters indicated concern regarding creating and 
maintaining an approved list of hardware, software, and firmware.
    The Coast Guard acknowledges the potential burden in creating an 
approved list of hardware, software, and firmware; however, it is 
necessary to increase visibility into deployed technology assets and 
reduce the likelihood of breach by users installing unapproved 
hardware, firmware, or software. The Coast Guard anticipates that after 
developing the initial list, it will be easier for owners and operators 
to update the list in the future. Owners and operators may also find 
that their list is similar across multiple vessels or facilities within 
their organization. The Coast Guard does acknowledge that this will 
rely on coordination and cooperation of vendors and managed service 
providers.
    One commenter requested clarification whether the proposed 
requirements are applicable only to mission critical IT and OT systems, 
or, applicable to all onboard IT and OT systems.
    The Coast Guard revised this final rule to clarify where the 
regulations apply to all IT and OT systems and where they apply to the 
critical IT and OT systems. For example, we removed reference to OT 
systems in Sec.  101.650(a)(1) and specified that the requirements in 
Sec.  101.650(e)(1)(i) and (iv) are for critical IT and OT systems.
    One commenter stated that the requirement in Sec.  101.650(b)(2) to 
ensure applications running executable code must be disabled by default 
on critical IT and OT systems is unclear and requested adjustment to 
the text.
    The Coast Guard disagrees that this text is unclear. The text 
requires entities to disable applications running executable code on 
critical IT and OT systems. The primary vulnerability associated with 
executable code is the potential for malicious code to be embedded 
within them, allowing attackers to exploit vulnerable systems when 
users open certain programs without being aware what is being done in 
the background. This essentially turns the device into a vehicle for 
launching cyberattacks or can lead to data theft, unauthorized system 
access, and other harmful actions. Executable code technologies include 
Java applets, JavaScript, HTML5, WebGL, and VBScript as well as macros 
used within products like Microsoft Office. IT and OT personnel will be 
familiar with the vulnerabilities associated with executable code and 
will understand the requirements of this provision.

N. Comments Related to Data Security Measures (Sec.  101.650(c))

    One commenter stated that the phrase ``document and mitigate any 
vulnerabilities'' in Sec.  101.650(e)(1)(iv) caused concern with the 
use of the word ``any,'' as there may not be mitigations or patches 
available.
    The Coast Guard revised paragraph (e)(1)(iv) in Sec.  101.650 to 
clarify that the regulated entity will ensure patching or 
implementation of documented compensating controls for all KEVs in 
critical IT or OT systems, without delay, at the time of their annual 
assessment, as well as part of routine maintenance.
    One commenter expressed concern about the lack of specificity in 
the level and type of logging and monitoring of IT and OT systems for 
breaches of security, suspicious activity, TSIs, and cyber incidents.
    Given the wide array of IT and OT systems, mandating a one-size-
fits-all level of logging is not practical. Each U.S.-flagged vessel, 
facility, and OCS facility should customize its logging system to best 
address its specific risks

[[Page 6325]]

and technologies and document the customization in the Plan.
    Some commenters expressed concern about encrypting data, at transit 
and at rest, on IT and OT systems, as it may be difficult to do on OT 
systems, or other legacy systems.
    The Coast Guard revised Sec.  101.650(c)(2) to better describe our 
expectations regarding data encryption. The revised text specifies that 
effective encryption must be deployed to maintain confidentiality of 
sensitive data and integrity of IT and OT traffic, when technically 
feasible. Encrypting data, at transit and at rest, is an example of 
when a requirement may not be technically feasible. In this case, the 
regulated entity should describe the aspects that they can comply with 
in their Cybersecurity Plan. Additionally, if an owner or operator has 
further concerns about how they can comply with these requirements, 
they can follow the process for requesting a waiver or equivalent 
according to Sec.  101.665.
    One commenter recommended that the Coast Guard add specific 
requirements for wireless communications as noted in IACS UR E26 
4.2.5.3.\58\
---------------------------------------------------------------------------

    \58\ IACS (UR E26 4.2.5.3) Cyber Resilience of Ships: <a href="https://www.american-club.com/files/files/ur-e26-new-apr-2022.pdf">https://www.american-club.com/files/files/ur-e26-new-apr-2022.pdf</a>, accessed 
November 13, 2024.
---------------------------------------------------------------------------

    The Coast Guard has not added specific requirements for wireless 
communications. During their Cybersecurity Assessment, each owner or 
operator of a regulated U.S.-flagged vessel, facility, or OCS facility 
may identify wireless communications as part of their IT and OT systems 
and equipment being assessed, as applicable.
    One commenter suggested adding the requirement that remote 
connections to OT systems be made with secure connection and endpoint 
authentication, protection of integrity and authentication, and 
encryption at network or transport layer.
    The Coast Guard disagrees that additional requirements are 
necessary. This final rule's requirements for remote connections are 
sufficient as minimum baseline requirements as noted in Sec.  
101.650(a)(4). Owners or operators of U.S.-flagged vessels, facilities, 
and OCS facilities are welcome to take additional measures as 
appropriate to their systems, equipment, and operations.
    Some commenters questioned the requirements for all data requiring 
encryption. Another commenter suggested that data security should 
include PII, to include employee records and access control data, such 
as access control databases used for physical access, which could 
include information on Transportation Worker Identification 
Credentials, other PII, etc. Physical Access Control Systems (PACS) log 
physical entries into a facility, and this should likewise be treated 
as PII and sensitive security information. When practical, PACS 
servers, networks, devices, applications, and software should be air-
gapped or isolated from IT and OT networks to prevent intrusion or 
alteration of data to allow unauthorized physical access.
    The Coast Guard revised Sec.  101.650(c)(2) to clarify that only 
sensitive data be encrypted. The Coast Guard has not, however, added 
these specific items to the requirements, but, rather, allow

[…truncated; see source link]
Indexed from Federal Register on January 17, 2025.

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