---
kind: "section"
citation: "46 C.F.R. § 11.431"
title: "46"
number: "11.431"
heading: "Tonnage requirements for Great Lakes and inland endorsements for vessels of 1,600 GRT or more."
url: "https://uscodex.org/cfr/46/11.431"
---

# §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)](/cfr/46/11.402.md?p=b) and [(c)](/cfr/46/11.402.md?p=c) of this subpart.

## Notes

### Authority

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.

### Source

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