Section 15.915 - [Effective 1/17/2025] Engineer officer endorsementsThe following Licenses and MMC officer endorsements authorize the holder to serve as noted, within any restrictions on the License or MMC, and as provided by § 15.401 :
(a) A Designated Duty Engineer (DDE) License or endorsement authorizes service as Chief or Assistant Engineer on vessels of less than 500 GT in the following manners:(1) A DDE limited to vessels of less than 1,000 horsepower or less than 4,000 horsepower may serve only on near-coastal, Great Lakes, or inland waters.(2) A DDE with no horsepower limitations may serve on any waters.(3) When serving on a vessel to which STCW applies, the appropriate STCW endorsement must also be held.(b) A Chief Engineer-Limited License or endorsement authorizes service as Chief or Assistant Engineer on vessels of any gross tons on inland waters and of less than 1,600 GRT on ocean, near-coastal, or Great Lakes waters.(c) An Assistant Engineer-Limited License or endorsement authorizes service on vessels of any gross tons on inland waters and of less than 1,600 GRT on ocean, near-coastal, or Great Lakes waters.