Engineer licensesendorsed for service as engineer (OSV) unlimited HP on domestic, near coastal voyages only.
(1) A mariner licensed as designated duty engineer (DDE) may have the license endorsed
for service as the chief engineer on OSVs of not more than 3,000 GT on near coastal, domestic
routes within the horsepower limitations of the license and the route limitations set forth in
46 CFR 10.501. No additional endorsement is required.
(2) A mariner licensed as chief engineer (limited) may serve as the chief engineer of an
OSV of not more than 3,000 GT within the horsepower and route limitations of the license
without further endorsement. The license must be endorsed to authorize service on vessels of
(3) A mariner licensed as chief engineer (OSV) of less than 4,000 HP may have the license