US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements
US Coast Guard regulations under the Maritime Transportation Security Act for vessels, port facilities and Outer Continental Shelf facilities, now including the January 2025 cybersecurity rule: facility security officers, assessments, approved security plans, drills, records, MARSEC levels, access control and incident reporting, plus cyber incident reporting since 16 July 2025, cybersecurity training by 12 January 2026, and by 16 July 2027 a Cybersecurity Officer, annual Cybersecurity Assessment and an approved Cybersecurity Plan covering MFA, asset inventories, patching of known exploited vulnerabilities, IT-OT segmentation, supply chain controls, backups and incident response.
US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements is a compliance framework from United States with 2 domains and 19 controls that map to 196 other frameworks. The largest domains are Cybersecurity in the Marine Transportation System (33 CFR 101 subpart F) – US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements (12 controls), MTSA security program for facilities (33 CFR 101.305, part 105; parallel duties in parts 104 and 106) – US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements (7 controls). Every control below carries what it requires and what an assessor expects to see.
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Framework Domains (2)
Cybersecurity in the Marine Transportation System (33 CFR 101 subpart F) – US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements
| Code | Title |
|---|---|
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-620 | Designate a Cybersecurity Officer available 24/7 and give the cybersecurity organisation clear duties |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-630 | Develop the Cybersecurity Plan in the required sections and submit it for approval by 16 July 2027 |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-635 | Drill twice and exercise once a year, keep cyber records, maintain communications, and show the plan and pen test results on request |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650A | Secure accounts: lockout, no default passwords, strong passwords, MFA, least privilege, separate and revoked credentials |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650B | Control devices: approved hardware and software list, executable code off by default, asset inventory, network map |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650C | Protect data: secure logs accessible only to privileged users and encryption where feasible |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650D | Train all IT and OT users and key personnel (first training by 12 January 2026, then yearly) |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650E1 | Complete the Cybersecurity Assessment by 16 July 2027 and yearly, and penetration test at each plan renewal |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650E3 | Maintain systems: patch known exploited vulnerabilities, take vulnerability reports, no internet-exposed OT, scan |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650F | Manage supply chain cyber risk: procurement criteria, vendor notification, monitored remote access |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650G | Report reportable cyber incidents without delay, keep an exercised incident response plan and tested backups |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::C-650H | Segment IT from OT, monitor IT-OT connections, and restrict physical access and removable media |
MTSA security program for facilities (33 CFR 101.305, part 105; parallel duties in parts 104 and 106) – US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements
| Code | Title |
|---|---|
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::S-101.305 | Report suspicious activity, breaches of security and transportation security incidents without delay |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::S-105.200 | Organise facility security and designate a qualified Facility Security Officer |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::S-105.220 | Train security personnel, drill every 3 months and exercise at least yearly |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::S-105.225 | Keep security records for at least 2 years and protect electronic records |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::S-105.230 | Implement MARSEC level changes within 12 hours and coordinate with vessels |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::S-105.255 | Control access to the facility and secure areas, including TWIC verification |
| us-maritime-transportation-security-act-mtsa-and-uscg-cybersecurity-requirements::S-105.305 | Conduct the Facility Security Assessment, get the Facility Security Plan approved, and audit it annually |
Your Compliance Coverage
If you comply with US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements, you already cover:
ISO 27002:2022
38%
20 controls mapped
Compare →NIST SP 800-82 Revision 3: Guide to Industrial Control Systems (ICS) Security
10%
5 controls mapped
Compare →BSI IT-Grundschutz
8%
4 controls mapped
Compare →+ 193 more: FFIEC Cybersecurity Assessment Tool (CAT) (8%), ISO/IEC 27400:2022 (8%)
See all 196 mapped frameworks ↓Maps to 196 other frameworks
Coverage is not the same as your position
This page shows what US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements overlaps with in general. Where your organisation actually stands, against the standard you are going for and the certifications you already hold, is a different question. Same graph and the same recorded refutations, scoped to you rather than to a pair.
The Compliance Position Diagnostic, $5,000 fixed, ten business daysWhat is US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements and who does it apply to?
US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements is a compliance framework from United States with 2 domains and 19 controls. US Coast Guard regulations under the Maritime Transportation Security Act for vessels, port facilities and Outer Continental Shelf facilities, now including the January 2025 cybersecurity rule: facility security officers, assessments, approved security plans, drills, records, MARSEC levels, access control and incident reporting, plus cyber incident reporting since 16 July 2025, cybersecurity training by 12 January 2026, and by 16 July 2027 a Cybersecurity Officer, annual Cybersecurity Assessment and an approved Cybersecurity Plan covering MFA, asset inventories, patching of known exploited vulnerabilities, IT-OT segmentation, supply chain controls, backups and incident response. It is used by organisations to establish and maintain compliance with industry standards and regulatory requirements.
What does US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements actually require?
US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements has 19 controls organised across 2 domains. The largest domains are Cybersecurity in the Marine Transportation System (33 CFR 101 subpart F) – US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements (12 controls), MTSA security program for facilities (33 CFR 101.305, part 105; parallel duties in parts 104 and 106) – US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements (7 controls). Each control defines specific requirements that organisations must implement to achieve compliance.
If I already comply with another framework, how much of US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements do I already cover?
US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements maps to 196 other compliance frameworks. The top mapping partners are ISO 27002:2022 (38% coverage), NIST SP 800-82 Revision 3: Guide to Industrial Control Systems (ICS) Security (10% coverage), BSI IT-Grundschutz (8% coverage). Use our comparison tool to explore control-level mappings between frameworks.
How do I implement US Maritime Transportation Security Act (MTSA) and USCG Cybersecurity Requirements?
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