U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
(a) As table 1 to § 11.466(a) shows, to obtain an endorsement as Apprentice Mate of Towing Vessels listed in column 1, endorsed with a route listed in column 2, mariners must complete the service requirements indicated in columns 3 through 6.
Table 1 to § 11.466(
| 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|
| Endorsement | Route endorsed | Total service 1 | TOS 2 on T/V | TOS on particular route | Pass
examination 3 |
| (1) APPRENTICE MATE OF TOWING VESSELS | OCEANS (O) | 18 | 12 | 3 | YES. |
| NEAR-COASTAL (NC) | 18 | 12 | 3 | YES. | |
| GREAT LAKES | 18 | 12 | 3 | YES. | |
| INLAND (GL-I) | 18 | 12 | 3 | YES. | |
| WESTERN RIVERS (WR) | 18 | 12 | 3 | YES. | |
| (2) APPRENTICE MATE OF TOWING VESSELS -LIMITED | NOT APPLICABLE | 18 | 12 | 3 | YES. |
1 Service is in months.
2 TOS is time of service.
3 The examination for Apprentice Mate is specified in subpart I of this part.
(b) Those holding an endorsement as Apprentice Mate of Towing Vessels may obtain a restricted endorsement as Apprentice Mate of Towing Vessels-Limited. This endorsement will go on the mariner's MMC after passing an examination for a route that is not included in the current endorsements and on which the mariners have no operating experience. Upon completion of 3 months of experience on that route, mariners may have the restriction removed.
