46 CFR § 11.551 - Endorsements for service on offshore supply vessels.
---identifier: "/us/cfr/t46/s11.551"source: "ecfr"legal_status: "authoritative_unofficial"title: "46 CFR § 11.551 - Endorsements for service on offshore supply vessels."title_number: 46title_name: "Shipping"section_number: "11.551"section_name: "Endorsements for service on offshore supply vessels."chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"subchapter_number: "B"subchapter_name: "MERCHANT MARINE OFFICERS AND SEAMEN"part_number: "11"part_name: "REQUIREMENTS FOR OFFICER ENDORSEMENTS"positive_law: falsecurrency: "2026-04-05"last_updated: "2026-04-05"format_version: "1.1.0"generator: "[email protected]"authority: "14 U.S.C. 503; 31 U.S.C. 9701; 46 U.S.C. 2101, 2103, and 2110; 46 U.S.C. chapter 71; 46 U.S.C. 7502, 7505, 7701, 8903, 8904, 8906, and 70105; E.O. 10173; DHS Delegation No. 00170.1, Revision No. 01.4. Section 11.107 is also issued under the authority of 44 U.S.C. 3507."regulatory_source: "USCG-2004-17914, 78 FR 77909, Dec. 24, 2013, unless otherwise noted."cfr_part: "11"---
Identifier
/us/cfr/t46/s11.551
Currency
2026-04-05
Positive Law
No
Updated
2026-04-05
Chapter
Coast Guard, Department of Homeland Security
Authority
14 U.S.C. 503; 31 U.S.C. 9701; 46 U.S.C. 2101, 2103, and 2110; 46 U.S.C. chapter 71; 46 U.S.C. 7502, 7505, 7701, 8903, 8904, 8906, and 70105; E.O. 10173; DHS Delegation No. 00170.1, Revision No. 01.4.... 14 U.S.C. 503; 31 U.S.C. 9701; 46 U.S.C. 2101, 2103, and 2110; 46 U.S.C. chapter 71; 46 U.S.C. 7502, 7505, 7701, 8903, 8904, 8906, and 70105; E.O. 10173; DHS Delegation No. 00170.1, Revision No. 01.4. Section 11.107 is also issued under the authority of 44 U.S.C. 3507.
# 11.551 Endorsements for service on offshore supply vessels.Each endorsement for service on offshore supply vessels (OSVs) as Chief Engineer-OSV or Engineer-OSV authorizes service on OSVs as defined in 46 U.S.C. 2101 and as interpreted under 46 U.S.C. 14104(b), subject to any restrictions placed on the MMC.[USCG-2021-0097, 89 FR 93094, Nov. 25, 2024, as amended by USCG-2024-1103, 90 FR 52880, Nov. 24, 2025]