The Master License is the highest level of captain's license that can be obtained and allows you to perform the duties of an OUPV/Six-pack captain and also operate inspected vessels. Inspected vessels are approved to carry seven or more paying passengers and have been built in accordance with rigid USCG standards.
Infographic: One-Minute Guide to Getting the 25/50/100-Ton License
A 25-ton vessel can be 40-65 feet depending on how its built. A 50-ton vessel can be 50-70 feet depending on the type vessel and material it is built with. A 100-ton vessel can be 65 feet or more depending on its construction and commercial uses. These are generalizations but are useful guides.
2 Where can I take a 100-Ton Masters License practice test?
Mariners Learning System offers a USCG-approved course including practice questions to prepare you for the 25-ton, 50-ton, and 100-ton master license exams. You can purchase an online edition of the course or the Deluxe Edition that includes both hard copy and digital materials.
3 How do I upgrade from a 50-Ton to 100-Ton Master Inland License?
To upgrade from a 50 to 100 ton Master Inland License, you need to be able to document the following sea service requirements:
100 GRT - 90 days (25%) of service on vessels of 51 GRT or above, OR
180 days (50%) of service on vessels of 34 GRT or above.