46 CFR 11.410 - Requirements for deck officer endorsements for vessels of less than 1,600 GRT.
(1) Less than 1,600 GRT.
(2) Less than 500 GRT.
(3) Between 25 and 200 GRT in 50-ton increments and with appropriate mode of propulsion such as self-propelled, sail, or auxiliary sail.
(c) An officer's endorsement in this category obtained with an orally assisted examination will be limited to 500 GRT. In order to raise that tonnage limit to 1,600 GRT, the written examination and service requirements must be satisfied.