VESSEL OPERATING REQUIREMENTS.

SEC. 705. VESSEL OPERATING REQUIREMENTS. Section 4(a)(3) of the Ports and Waterways Safety Act (33 U.S.C. 1223(a)(3)) is amended by inserting after “300 gross tons” the following: “as measured under section 14502 of title 46, United States Code, or an alternate tonnage measured under section 14302 of that title as prescribed by the Secretary under section 14104 of that title”.