Where can I sail with an Oceans License?

MMC endorsement for service as master or mate on ocean waters qualifies the mariner to serve in the same grade on any waters, except towing vessels upon western rivers subject to the limitations of the endorsement.

Does this include Inland and the Great Lakes?

Yes. Any license or MMC endorsement issued for service as master or mate on near-coastal waters qualifies the mariner to serve in the same grade on Great Lakes and inland waters, except towing vessels upon western rivers subject to the limitations of the endorsement.

What are the limitations on Western Rivers?

Before serving as a master or mate (pilot) of towing vessels on the Western Rivers, mariners must possess 90 days of observation and training and have their MMC include an endorsement for Western Rivers.

We hope this made your life a little easier and if you have other questions the MM-SEAS team is always here to help!

MM-SEAS is free to use on your own and if you need some more personalized help you can upgrade to MM-SEAS Pro inside of the site.

No matter what, when you are ready to submit your application, you can choose to have the MM-SEAS staff create a perfect application, handle the USCG application fees and work with the USCG on your behalf to resolve any issues for a flat fee of $299 or you can choose to submit on your own.

Pro MM-SEAS members get access to unlimited live 1 on 1 calls with one of our USCG Licensing Specialists. We've found that answering questions live with screen sharing in a video call makes both of our lives easier. Pro MM-SEAS members can access these features inside of MM-SEAS under License Guidance.