46 CFR § 11.431 - Tonnage requirements for Great Lakes and inland endorsements for vessels of 1,600 GRT or more.
---identifier: "/us/cfr/t46/s11.431"source: "ecfr"legal_status: "authoritative_unofficial"title: "46 CFR § 11.431 - Tonnage requirements for Great Lakes and inland endorsements for vessels of 1,600 GRT or more."title_number: 46title_name: "Shipping"section_number: "11.431"section_name: "Tonnage requirements for Great Lakes and inland endorsements for vessels of 1,600 GRT or more."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/s11.431
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.
# 11.431 Tonnage requirements for Great Lakes and inland endorsements for vessels of 1,600 GRT or more.(a) All required experience for Great Lakes and inland unlimited endorsements must be obtained on vessels of 100 GRT or more. At least one-half of the required experience must be obtained on vessels of 1,600 GRT or more.(b) Tonnage limitations may be imposed on these endorsements in accordance with § 11.402(b) and (c) of this subpart.