46 CFR § 11.446 - Requirements for Master of Great Lakes and inland self-propelled vessels of less than 500 GRT.
---
identifier: "/us/cfr/t46/s11.446"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 11.446 - Requirements for Master of Great Lakes and inland self-propelled vessels of less than 500 GRT."
title_number: 46
title_name: "Shipping"
section_number: "11.446"
section_name: "Requirements for Master of Great Lakes and inland self-propelled vessels of less than 500 GRT."
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: false
currency: "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"
---
# 11.446 Requirements for Master of Great Lakes and inland self-propelled vessels of less than 500 GRT.
(a) The minimum service required to qualify an applicant for an endorsement as Master of Great Lakes and inland self-propelled vessels of less than 500 GRT is—
(1) Three years of total service on vessels. One year of the required service must have been as a Master, Mate, or equivalent position on vessels of 50 GRT or more while holding an MMC endorsement as Master, Mate, or OUPV.
(2) [Reserved]
(b) An applicant holding an MMC endorsement as Master of ocean, near-coastal, or Great Lakes and inland towing vessels is eligible for this endorsement after 6 months of service as Master of Towing Vessels and completion of a limited examination. This requires 3
1/2 years of service. Two years of this service must have been served while holding an MMC endorsement as Master or Mate (Pilot) of Towing Vessels, or Mate.
[USCG-2021-0097, 89 FR 93083, Nov. 25, 2024, as amended by USCG-2021-0834, 89 FR 102335, Dec. 17, 2024]