Public Law 83–479

That paragraph 1530 (e) of the Tariff Act of 1930, as amended, is amended by adding at the end thereof the following: “For the purposes of this paragraph and any existing or future proclamation of the President relating thereto, footwear of which a major portion, in area, of the basic wearing surface of the outer soles (that part of the article, not including the heel, that is designed to be the basic wearing surface and to resist wear on contact with any surface) is composed of India rubber or any substitute for rubber, or both, shall be deemed to have soles wholly

Effective date.

or in chief value of India rubber or substitutes for rubber.” The foregoing amendment shall enter into force as soon as practicable, on a date to be specified by the President in a notice to the Secretary of the Treasury following such negotiations as may be necessary to effect a modification or termination of any international obligations of the United States with which the amendment might conflict, but in any event not later than one hundred and eighty days after the passage of this Act.