{"data":{"id":"us/46-cfr-11.433","jurisdiction":"us","citation":"46 CFR 11.433","heading":"Requirements for Master of Great Lakes and inland self-propelled vessels of unlimited tonnage.","body":"(a) The minimum service required to qualify an applicant for an endorsement as Master of Great Lakes and inland self-propelled vessels of unlimited tonnage is—\n(1) One year of service as a Mate or First-Class Pilot while acting in the capacity of First Mate of Great Lakes self-propelled vessels of 1,600 GRT or more while holding an MMC endorsement as Mate inland or First-Class Pilot of Great Lakes and inland self-propelled vessels of unlimited tonnage;\n(2) Two years of service as Master of self-propelled vessels of 1,600 GRT or more on inland waters, excluding the Great Lakes; or\n(3) One year of service upon Great Lakes waters while holding an MMC endorsement as Mate or First-Class Pilot of Great Lakes and inland self-propelled vessels of 1,600 GRT or more. A minimum of 6 months of this service must have been in the capacity of First Mate. Service as Second Mate is accepted for the remainder on a two-for-one basis to a maximum of 6 months (2 days of service equals 1 day of creditable service).\n(b) [Reserved]","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER B—MERCHANT MARINE OFFICERS AND SEAMEN","PART 11—REQUIREMENTS FOR OFFICER ENDORSEMENTS","Subpart D—Professional Requirements for National Deck Officer Endorsements"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"a53ff5a300667f6041bf2d2d74404fb4cbcb8f458b53577fc4b84c76e9928678","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-11.431","next":"us/46-cfr-11.435"},"notice":"GroundRules: Original legal text. Not legal advice."}