46 CFR 11.431 - Tonnage requirements for Great Lakes and inland endorsements for vessels of 1,600 GRT or more.

Regulations last checked for updates: Feb 07, 2026

Title 46 - Shipping last revised: Jan 15, 2026

View all text of Subpart D [§ 11.401 - § 11.497]

§ 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.

authority: 14 U.S.C. 503; 31 U.S.C. 9701; 46 U.S.C. 2101,2103,and; 46 U.S.C. chapter 71; 46 U.S.C. 7502,7505,7701,8903,8904,8906,and; 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.

source: USCG-2004-17914, 78 FR 77909, Dec. 24, 2013, unless otherwise noted.

cite as: 46 CFR 11.431