CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER B—MERCHANT MARINE OFFICERS AND SEAMEN (parts 10 to 16) > PART 11—REQUIREMENTS FOR OFFICER ENDORSEMENTS > SUBPART D—Professional Requirements for Deck Officers (§11.401 to §11.497) > 11.442—Service requirements for master of Great Lakes and inland steam or motor vessels of not more than 1600 gross tons.

11.442—Service requirements for master of Great Lakes and inland steam or motor vessels of not more than 1600 gross tons.

The minimum service required to qualify an applicant for an endorsement as master of Great Lakes and inland steam or motor vessels of not more than 1600 gross tons is:
(a) Three years total service on vessels. Eighteen months of the required service must have been on vessels of over 100 gross tons. One year of the required service must have been as a master, mate, or equivalent supervisory position on vessels of over 100 gross tons while holding a license or MMC endorsement as master, as mate, or as master of towing vessels; or,
(b) Six months of service as operator on vessels of over 100 gross tons while holding a license or MMC endorsement as master of towing vessels.
[CGD 81-059, 54 FR 140, Jan. 4, 1989, as amended by USCG-1999-6224, 64 FR 63228, Nov. 19, 1999; USCG-2006-24371, 74 FR 11243, Mar. 16, 2009]