---
kind: "section"
citation: "46 C.F.R. § 15.915"
title: "46"
number: "15.915"
heading: "Engineer officer endorsements."
url: "https://uscodex.org/cfr/46/15.915"
---

# §15.915. Engineer officer endorsements.


The following MMC officer endorsements authorize the holder to serve as noted, within any restrictions on the MMC, and as provided by [§ 15.401](/cfr/46/15.401.md):

- (a) A Designated Duty Engineer (DDE) 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 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 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.

## Notes

### Amendments

[USCG-2004-17914, 78 FR 78010, Dec. 24, 2013, as amended by USCG-2021-0834, 89 FR 102340, Dec. 17, 2024]

### Source

Source: CGD 81-059, 52 FR 38652, Oct. 16, 1987, unless otherwise noted. Redesignated by USCG-2004-17914, 78 FR 78001, Dec. 24, 2013.

### Authority

Authority: 46 U.S.C. 2101, 2103, 3306, 3703, 8101, 8102, 8103, 8104, 8105, 8301, 8304, 8502, 8503, 8701, 8702, 8901, 8902, 8903, 8904, 8905(b), 8906 and 9102; sec. 617, Pub. L. 111-281, 124 Stat. 2905; and DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGD 81-059, 52 FR 38652, Oct. 16, 1987, as amended by USCG-2021-0097, 89 FR 93118, Nov. 25, 2024, unless otherwise noted.

### Amendments

[USCG-2004-17914, 78 FR 78010, Dec. 24, 2013, as amended by USCG-2021-0834, 89 FR 102340, Dec. 17, 2024]