
USCG License Endorsements
The following endorsements may be added to USCG Licenses of 200 tons and less.
Assistance Towing Endorsement
Any USCG license of 200 tons or less, including an OUPV license, may be endorsed for Assistance
towing. This endorsement authorizes the holder to engage in commercial assistance towing within
the scope of their license. Mariners with licenses for towing vessels or with licenses of 500 gross
tons or more may engage in commercial assistance towing without this endorsement.
Related Course
4-hour Assistance Towing
Any applicant who has successfully completed your 4-hour Assistance Towing course and presents
your Certificate of Training at a Regional Exam Center WITHIN ONE YEAR of the completion of
training, will satisfy the examination requirements of 46 CFR 10.482(b) for an Assistance Towing
endorsement to any license up to Master Not More Than 200 Gross Tons.
Auxiliary Sail Endorsement
An endorsement for sail or auxiliary sail may be added to any master or mate license, it may not be
added to an OUPV license. To qualify for an auxiliary sail endorsement the license holder must
document sea service experience on sail or auxiliary sail vessels. The amount of sea service
experience depends on the existing license.
- Master near coastal requires 12 months experience
- Master inland requires 6 months experience
- Mate near coastal or inland requires 3 moths experience
Related Course
4-hour Auxiliary Sail
Any applicant who has successfully completed your 4-hour Auxiliary Sail course and presents your
Certificate of Training at a Regional Exam Center WITHIN ONE YEAR of the completion of training,
will satisfy the examination requirements of 46 CFR 10.482(b) for an Auxiliary Sail endorsement to
any license up to Master Not More Than 200 Gross Tons.