{"data":{"id":"us/46-cfr-11.437","jurisdiction":"us","citation":"46 CFR 11.437","heading":"Requirements for Mate 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 Mate of Great Lakes and inland self-propelled vessels of unlimited tonnage is—\n(1) Three years of service in the deck department of self-propelled vessels, at least 3 months of which must have been on vessels on inland waters and at least 6 months of which must have been while performing bridge watchkeeping duties under the supervision of the Master or a qualified officer;\n(2) Graduation from the deck class of the Great Lakes Maritime Academy; or\n(3) While holding an MMC endorsement as Master of Great Lakes and inland self-propelled vessels of less than 1,600 GRT, 1 year of service as Master on vessels of 200 GRT or more. A tonnage limitation may be placed on this MMC endorsement in accordance with § 11.431.\n(b) Service gained in the engine department on vessels of appropriate tonnage may be creditable for up to 6 months of the service requirements under paragraph (a)(1) of this section.","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":"03cd423e9d4ec2d6d34f5624f85098caa0c7f03cb6fb4340278d7b13ab09c479","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-11.435","next":"us/46-cfr-11.442"},"notice":"GroundRules: Original legal text. Not legal advice."}