Coast Guard authorizations : hearing before the Subcommittee on Merchant Marine of the Committee on Commerce, United States, Senate, Ninety-fourth Congress, first session on S. 1487, to authorize appropriations for the Coast Guard for the procurement of vessels and aircraft and construction of shore and offshore establishments, to authorize appropriations for bridge alterations, to authorize for the Cast Guard an end-year strength for active duty personnel, to authorize for the Coast Guard average military student loads, and for other purposes, April 28, 1975.