Government agency compliance with Cargo Preference Laws : hearing before the Subcommittee on Merchant Marine of the Committee on Merchant Marine and Fisheries, House of Representatives, One Hundredth Congress, first session, on the manner in which the September 24, 1986 treaty between the United States and Iceland has been implemented; the status of rules the Department of Transportation proposed to govern the transportation of cement and clinker bought with Federal Highway Administration grants; the Department of Defence's compliance with the 1904 Cargo Preference Act; and the Department of Agriculture's administration of the Great Lakes port provisions contained in the Food Security Act of 1985, July 21, 1987.