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

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


Unlock Exclusive Savings - 30% OFF Any Course Use Code EDUMARDAD30 | $200 OFF Any Captains Course EDUMAR200CAPT | $300 OFF Master Captains Course EDUMAR300MAST

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

Master 25/50/100 Ton Sea Time

  • Master Inland Licence require 360 days underway experience in inland waters since age 16; 90 of those 360 days in the last 7 years.
  • Master Great Lakes  require 360 days underway experience since age 16; 90 of those 360 days in the last 7 years in Great Lakes.
  • Master Near Coastal License require 720 days underway experience since age 16; 90 of those 720 days in the last 7 years; 360 of those 720 days outside the boundary lines.
  • Both the amount of sea service time and the size of the vessels you have served on will determine the license you are eligible for (experience must be on a vessel that meets the tonnage requirements of the license you’re pursuing). Master licenses are issued in tonnage ratings of 25 GT, 50 GT, or 100 GT.
  • You are not required to progress through the various licenses. If you meet the USCG requirements for a particular license, you may receive it as your first credential. The level issued to you will depend on your documented boating experience.

Go to Master Captain Course

MLS 25/50/100 Ton Program

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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.
  • Duration: The Master-level licensing program is structured as an 87-hour course, though the average student completes it in 50 to 55 hours.
  • 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

  • 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.
  • Discount Codes: Online Captains License course seasonal sale & discount codes - Exclusive Offers


Discount Codes:

  • Any Course 30% OFF Discount Code EDUMARDAD30 
  • OR Any Captains Course $200 OFF Code EDUMAR200CAPT
  • OR For Master 25-5-100 $300 OFF Code EDUMAR300MAST