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USCG 25-50-100 Ton Master Captain’s License Online - Mariners Learning System (MLS)

Captains License 600

U.S.C.G Approved Online 25/50 or 100-Ton Master Captain’s License with Mariners Learning System (MLS)


Located in Pennington NJ, Mariners Learning System (MLS) provides U.S. Coast Guard Certified Licensing Courses with their 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 allows you to operate inspected vessels with more than 6 passengers (for high-speed ferries, water taxi, whale watching boats, head boats, assistance towboats, charter boats carrying over six passengers etc.).

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.

 The MLS American Hero Fund offers financial aid to members of the U.S. military, veterans, police officers, firefighters, and first responders who aspire to obtain a license of their choice.

  • Master-Inland requires 360 days underway experience since age 16; 90 of those 360 days in the last 3 years. Completion of approved course and test.
  • Master-Inland/OUPV Near Coastal requires 360 days underway experience since age 16; 90 of those 360 days in the last 3 years; 90 of those 360 days outside the boundary lines.
  • Master-Near-Coastal requires 720 days underway experience since age 16; 90 of those 720 days in the last 3 years; 360 of those 720 days outside the boundary lines. 

Master 25/50/100 Ton License 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

Latest Discount Code: Father's Day 25% off EDUMAR25DAD

Master 25/50/100 Ton Online

Master License Program Outline

  • 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.
  • License Application Process: Coast Guard Merchant OUPV/6pack Mariner Credential application process. Complimentary 2-Year MM-SEAS PRO USCG online license application consultancy membership with Master 25/50/100 online course. 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.
  • OUPV Captain / Master Current Job Opportunities: Please check for the latest job opportunities for licensed captains and masters.
  • 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. No CC rquired.


MLS Course Package

  • 25/50 or 100-Ton Master Captain's License online course
  • 12 months of access
  • Final online exam
  • Long Island Sound training chart
  • Official test packet for the chart plotting exam
  • 2-Year MM-SEAS PRO online USCG application software & unlimited access to Licensing experts via phone or video