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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Jan 21, 2026
All Titles
Title 33
Chapter I
Part 101-MARITIME - PART 101-MARITIME SECURITY: GENERAL
Subpart A [§ 101.100 - § 101.130] - Subpart A-General
Subpart B [§ 101.200 - § 101.205] - Subpart B-Maritime Security (MARSEC) Levels
Subpart C [§ 101.300 - § 101.310] - Subpart C-Communication (Port-Facility-Vessel)
Subpart D [§ 101.400 - § 101.420] - Subpart D-Control Measures for Security
Subpart E [§ 101.500 - § 101.555] - Subpart E-Other Provisions
Subpart F [§ 101.600 - § 101.670] - Subpart F-Cybersecurity
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