---
kind: "section"
citation: "46 C.F.R. § 11.464"
title: "46"
number: "11.464"
heading: "Requirements for national endorsements as Master of Towing Vessels."
url: "https://uscodex.org/cfr/46/11.464"
---

# §11.464. Requirements for national endorsements as Master of Towing Vessels.

- (a) An applicant for an endorsement as Master of Towing Vessels with a route listed in column 1 of table 1 to this section, must complete the service requirements indicated in columns 2 through 5. Applicants may serve on the subordinate routes listed in column 5 without further endorsement.
- (b) A person holding this endorsement may qualify for an STCW endorsement, according to §§ [11.307](/cfr/46/11.307.md), [11.311](/cfr/46/11.311.md), [11.313](/cfr/46/11.313.md), and [11.315](/cfr/46/11.315.md).
- (c) To obtain an endorsement as Master of Towing Vessels-Limited, applicants must complete the requirements listed in columns 2 through 5 of table 2 to [paragraph (c)](#c) of this section.
- (d) Those holding an MMC endorsement as Mate (Pilot) of Towing Vessels, may have Master of Towing Vessels-Limited added to their MMC for a limited local area within the scope of their current route.
- (e) Before serving as Master of Towing Vessels on the Western Rivers, mariners must possess 90 days of observation and training and their MMC must include an endorsement for Western Rivers.
- (f) Each company must maintain evidence that every vessel it operates is under the direction and control of a mariner with the appropriate endorsement and experience, including 30 days of observation and training on the intended route other than Western Rivers.
- (g) Those holding an MMC endorsement as a Master of self-propelled vessels of more than 200 GRT, may operate towing vessels within any restrictions on their endorsement if they-
  - (1) Have a minimum of 30 days of training and observation on towing vessels for the route being assessed, except as noted in [paragraph (e)](#e) of this section; and
  - (2) **Either—**
    - (i) Hold a completed Towing Officer Assessment Record (TOAR) described in [§ 10.404(c)](/cfr/46/10.404.md?p=c) of this subchapter that shows evidence of assessment of practical demonstration of skills; or
    - (ii) **Complete an approved training course.**
- (h) A License or MMC does not need to include a towing endorsement if mariners hold a TOAR or complete an approved training course.

## Notes

### Amendments

[USCG-2021-0097, 89 FR 93086, Nov. 25, 2024, as amended by USCG-2021-0834, 89 FR 102335, Dec. 17, 2024]

### 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.

### Amendments

[USCG-2021-0097, 89 FR 93086, Nov. 25, 2024, as amended by USCG-2021-0834, 89 FR 102335, Dec. 17, 2024]