A Coast Guard service member conducts the hull examination of a 205-foot research vessel in a Charleston, S.C., shipyard. These inspections are required twice within a five-year period, with no more than three years between exams. They consist of the inspection of accessible parts of the vessel's underwater body including the outside hull, through-hull fittings, tail shafts, propellers, rudder and void spaces. A vessel must receive credit for the inspection before it can be placed back into commercial service. US Coast Guard Art Program 2013 Collection, Ob ID # 201301, "Hull inspection," Daven Anderson, oil, 21 x 27VR869