ion or other provision, the reference shall be considered to be made to a section or other provision of the Act to Prevent Pollution from Ships (33 U.S.C. 1901 et seq.). 452.DefinitionsSection 2(a) (33 U.S.C. 1901(a)) is amended??? (1)by redesignating paragraphs (1) through (12) as paragraphs (2) through (13), respectively; (2)by inserting before paragraph (2) (as so redesignated) the following: (