46 C.F.R. § 10.448 Service requirements for mate of Great Lakes and inland steam or motor vessels of not more than 500 gross tons.
Title 46 - Shipping
The minimum service required to qualify an applicant for a license as mate of Great Lakes and inland steam or motor vessels of not more than 500 gross tons is two years total service in the deck department of steam or motor, sail, or auxiliary sail vessels. One year of the required service must have been on vessels of over 50 gross tons. Three months of the required service must have been as able seaman, boatswain, quartermaster, or equivalent position on vessels of over 50 gross tons while holding a certificate as able seaman. [CGD 81–059, 54 FR 140, Jan. 4, 1989]
Title 46: Shipping
PART 10—LICENSING OF MARITIME PERSONNEL
Subpart D—Professional Requirements for Deck Officers' Licenses
§ 10.448 Service requirements for mate of Great Lakes and inland steam or motor vessels of not more than 500 gross tons.