Sec. 91. Clearance; vessels. (a) When required; vessels of United States. (b) When required; other vessels. (c) Regulations. 97. State inspection laws. 98. Conveyance of bullion, coin, notes, or bonds for United States. 100. Payment of fees on vessels outward bound. 104. Reciprocal exemption of foreign yachts from charges and tonnage taxes; licenses. 111. Documented vessels with registry endorsement in trade with Canada.