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USCG 25-50-100 Ton Master Captains License Online - Great Lakes & Inland or Near Coastal

Captains License 600

UGCG Approved 25-50-100 Ton Master Captain’s License Program - Great Lakes & Inland or Near Coastal Licenses Online


Founded in 2002 and located in Pennington, NJ, Mariners Learning System (MLS) provides U.S. Coast Guard Certified Licensing Courses with flexible online training. With more than 25,000 students enrolled, a success rate of over 98%, and the flexibility to study at your own pace, Mariners Learning System™ is one the best choice for obtaining your Captain’s License and is very popular among license aspirants. You may take a 24-hour free trial to start with.

The 25/50/100 Ton Master-Captain’s License  is essential for individuals interested in high-speed ferries, water taxi, whale watching boats, head boats, assistance towboats, fishing and sailing charters, operating dive boats, or leading sightseeing tours carrying over six passengers. This license permits the holder to transport more than six paying passengers on inspected vessels of up to 100 gross tons (typically 75-90 feet). Different licenses are available based on experience level and specific restrictions.

The tonnage of the license is determined by your experience. For a 100 gross ton license, 90 days must be on vessels of 51 gross tons or above or 180 days must be on vessels of 34 gross tons or above. For a 50 gross ton license, 90 days must be on a vessel of 26 gross tons or above. If you do not meet the tonnage calculation for 50 gross ton or more you are eligible for 25 gross ton license.

The USCG does not require that you get a Six-Pack License before you get your Masters, so if you qualify, you can skip the Six-Pack and go straight to your Masters. There are 3 different Master Licenses a mariner may qualify.

Master 25/50/ 100 Ton Requirements

  • Age: 19 years
  • US Citizenship
  • TWIC Card
  • Physical Examination taken within 12 months
  • Drug Test taken within 6 months
  • CPR/First Aid training taken within 12 months
  • Completion of USCG approved Course - Master 25/50/100 Ton course
  • Complete a USCG original license application package

Master 25/50/100 Ton Sea Time

Go to Master Captain Course

MLS 25/50/100 Ton Program

Master Up To 100 Ton License

  • 25/50/100 Ton Master-Captain’s License: The USCG Master's License is the highest-level license that you can acquire. This license allows you to operate inspected vessels (7 passengers or more – like a water taxi or dive boat) or uninspected vessels.
  • Training: MLS has developed an intuitive learning approach that's direct, clear, and effective. Methodical, well-organized program of professionally produced, on-demand lectures, videos, and companion materials.
  • Subjects: Navigational Rules of the Road , Aids to Navigation, Electronic Navigation, Characteristics of Weather Systems, Lifesaving Equipment & Safety, Basic Seamanship Skills, Tides and Currents, Marine Radio Operation, Pollution Prevention, Vessel Handling Skills, and Emergency Procedures.
  • Exam Modules: Rules of the Road (50 questions with 90% pass score); Plotting (10 questions with 90% pass score; Navigation General (50 questions with 70% pass score); Deck General (50 questions with 70% pass score); and Master 25/50/100 Ton (70 questions with 70% pass score).
  • Online License Testing: Mariners Learning System was the first company in the country to receive the Coast Guard approval to offer online testing upon online course completion. Once you pass our online proctored exam, you will receive a certificate recognized by the United States Coast Guard. You may submit this certificate within one year with your license application package to get your license.
  • Towing & Auxiliary Sailing Endorsements: The Towing Endorsement is required if you will be engaged in towing a disabled vessel for payment. Auxiliary Sailing Captain's License endorsement allows the licensed Master to carry 7 or more passengers while under sail on an inspected vessel.
  • Tools & Guides: Apart from the Digital Edition of the course, Hardcopy Study Guides and Chart Plotting Tools are also available additionally for exam purpose

More Services & Schemes

  • Mariners White Glove Service:  Complimentary 2-Year online license application support MM-SEAS PRO with Captains License programs. MM-SEAS PRO gives you unlimited access to US Coast Guard Licensing experts via phone or video. It's like having a specialist by your side when you are ready to apply for your license. MM-SEAS Licensing Software makes documenting sea time, understanding license requirements, and keeping track of expirations easy through interactive checklists.
  • Military Veterans, Active-Duty Service Members, and First Responders Scheme: American Hero Fund for 25/50/100 Ton Master Licenses.
  • Free Trial: With MLS, you can take the approved USCG OUPV Captain's or 25/50/100 Ton Master License course 24-hour Free Trial without any obligation.
  • OUPV Captain / Master Current Job Opportunities: Please check for the latest job opportunities for licensed captains and masters.


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