License Upgrade Courses

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Take the next step with your captain's license through Mariners Learning System's online license upgrade courses and endorsements. This collection is designed for licensed captains who want to expand their credentials, increase their opportunities on the water, or add new privileges to an existing merchant mariner credential. Here you can find online courses for the Assistance Towing Endorsement, Auxiliary Sailing Endorsement, and OUPV/Six-Pack Upgrade to a 25/50 or 100-Ton Master captain's license. Each course is built to help you study online, prepare with confidence, and move toward the next level of your captain's license without putting life on hold. Whether your goal is to tow commercially, operate inspected sailing vessels, or add more paying passengers, Mariners Learning System gives you a clear and flexible path forward.