The United States Maritime Service (USMS) was established in 1938 under the provisions of the Merchant Marine Act of 1936 as voluntary training organization to train individuals to become officers and crewmembers on merchant ships that form the United States Merchant Marine per .
The United States Maritime Service (USMS), which began in 1938, was established under the provisions of the Merchant Marine Act of 1936 to provide voluntary training for individuals aiming to become officers and crew members on merchant ships that constitute the United States Merchant Marine per .