Chief Warrant Officer Dennis Croyle, a member of U.S. Coast Guard Sector San Diego's prevention department, inspects machinery in the engine room aboard the tanker ship Ardenne Venture during an annual exam off the coast of San Diego, Aug. 3, 2012. The Coast Guard carries out exams on foreign vessels to ensure they comply with United States and international regulations governing necessary safety equipment, crew qualifications and pollution restrictions prior to operating in U.S. waters and ports.