Training ships manned by the Coast Guard included the maritime-commissioned American Mariner. Licensed and unlicensed merchant marine personnel enrolled in the service. The ranks, grades, and ratings for the Maritime Service were based on those of the Coast Guard. Training for experienced personnel lasted three months; while inexperienced personnel trained for six months. Pay was based on the person's highest certified position in merchant service, and new students received cadet wages. American citizens at least 19 years old, with one year of service on American merchant vessels of more than 500 gross tons, were eligible for enrollment. Coast Guard training of merchant mariners was vital to winning the war. Thousands of the sailors who manned the new American merchant fleet trained under the watchful eyes of the Coast Guard.
