100 ton Master Upgrade


Course USCG Approved

Upgrade, OUPV To Master 25/50/100 Gross Registered Tons:

Course Length: 24 hours. Online students have (30 days) to complete.



standing watchThis course is for those who wish to upgrade their existing OUPV License (Six-pack) to a 25-ton, 50-ton, or 100-ton Master Captain's License. The Master's License is required to operate an inspected vessel that carries seven or more paying passengers.

Each area of the course will provide students with detailed instruction on the required topics to safely operate a Subchapter T vessel in accordance with federal regulations.  Online instruction will include end of topic (EOT) exercises and exams to insure students are knowledgeable of the subject matter as opposed to just being able to pass the exam.
The online course will provide students with the knowledge to pass the USCG approved Atlantis Maritime Academy’s final examination. However, the main course objective is to provide students with the knowledge and skills to safely operate a “T” Boat within the scope of required federal regulations and maritime law.


Course Subjects Include:

4.1   Seamanship - Purchases, Blocks and Tackle
4.2   Vessel Handling in Rivers & Estuaries
4.2a Dragging, Clearing Fouled Anchors
4.2d Maneuvering for Launching of Lifeboats and Life rafts
4.3a Principles of Ship Construction
4.3b Trim and Stability
4.3c USCG Load Line Regulations and Policies
4.4a Fire Prevention and Fire Fighting Appliances

4.4b Firefighting drills and training

4.4c Fixed fire-extinguishing systems

4.5  Safety Management

4.6  Emergency Towing

4.7  Rules and Regulations for Inspected T-Boats

4.8  Ship Sanitation

4.9  Admiralty Law

This course satisfies the examination requirement for the 25-ton, 50-ton or 100-ton Master License. The tonnage level of the Master's License is based on the size vessels on which you have your sea service experience. Students who successfully complete this course will be awarded a certificate of completion that will be accepted in lieu of the standard Coast Guard examination!


Sea Service

For this License, a day of Sea Service is defined as at least 4 hours underway on any given calendar day and can be counted back to your 15th birthday. You do not need to know the exact dates - just the number of days each year.


License Operating Area

Based on the geographical area of your sea service experience, this license can be issued for "Great Lakes" waters, "Inland" waters or "Near Coastal" waters.



Once the student completes the course quizzes and online Module Exam they make an appointment to take their final proctored exam with Atlantis Maritime Academy, Inc. No testing at the Coast Guard Regional Exam Centers.

This course is USCG Approved. No Tests at the Coast Guard. You will take proctored final exams administered at one of our USCG approved test locations. No need to make travel plans! We have test locations in most communities.

The exams include a selection of the topics covered in the course. We work with everyone until they pass! 98% pass rate. Online participation and study will typically get you through the exams. All exams are administered in accordance with USCG guidelines and students are permitted to retake the exam modules when needed to up to three times during the allotted 4 hours. 

100 Ton Master License Requirements:

The 25/50/100 Ton Master License is required by the USCG for any inspected vessel certified to carry more than six paying passengers. Such vessels would include head boats, assistance towboats, large passenger capacity tour boats, etc.


There are three different Master Upgrade Licenses for which a mariner may qualify. Both the amount of sea service time and the sizes of the vessels you have been on will influence the license you are eligible to be issued.


Master Upgrades are tonnage-rated at 25 GT, 50 GT, or 100 GT. The tonnage you are awarded is determined by the size vessels you've gained experience on in your lifetime, as limited by the size of vessels with experience on in the last three years. Time served in obtaining your OUPV License may be applied to the requirements for the Master Upgrade requirements.


Master Inland: 360 days underway experience since age 15. Ninety of those 360 days are required in the last three years. Completion of USCG-approved Master course...

Master Inland/OUPV: 360 days underway experience since age 15. Ninety of those 360 days are required in the last three years, with 90 of those 360 days outside the boundary lines.

Master Near Coastal: 720 days underway experience since age 15. Ninety of those 360 days are required in the last three years, with 360 of those 720 days outside the boundary lines.


Additional Requirements Include:
  • Transportation Workers Identification Credential (TWIC Card).
  • Minimum age: 19 years old.
  • A Physical if more than three years has elapsed since the last exam.
  • A Drug Test unless enrolled in a USCG-required random drug program for at least 60 of the last 185 days, and with no failure or refusal to participate in a chemical test for dangerous drugs.
  • U.S. Citizenship.
  • Completion of Atlantis Maritime Academy USCG-approved OUPV Upgrade to Master online course.

The USCG has approved our Master Upgrade curriculum and test as a substitute for taking the full Master Upgrade test at a USCG Regional Exam Center.

Upon successful completion Atlantis Maritime Academy’s online program and passing the proctored multiple choice test, the student receives an Atlantis Maritime Academy’s certificate of completion which the U.S. Coast Guard will accept in lieu of taking their exam.


Note: As you gain experience on larger vessels, tonnage ratings can be increased up to 100 tons without re-testing.

At the moment, we are only allowing students seeking their OUPV/Six Pack to enroll. Upgrades and endorsements are in the process of being upgraded to accommodate our new course delivery Learning Management System (LMS). After that is complete, then we must submit the final products to the USCG for their approval. Unfortunately, we must go through this process every five years.


Please ask to be put on our waiting list.


Thanks for your patience during this transition