Help Project Refit and the William E. Taylor Sea Cadets division with your monthly contributions. The U.S. Naval Sea Cadet Corps is a non-profit leadership development program for ages 10 through the completion of high school. The USNSCC is sponsored by the Navy League of the United States and supported by the U.S. Navy and Coast Guard and has nearly 400 units in 46 states, Guam and Puerto Rico.