In the customs territory of the United States , and in the Virgin Islands, the provisions of this chapter shall be enforced by appropriate customs officers. In any other territory or area within the United States , but not within such customs territory or the Virgin Islands, such provisions shall be enforced by such persons as may be designated by the President. ( Pub. L. 97–446, title III, § 314 , Jan. 12, 1983 , 96 Stat. 2363 .) Statutory Notes and Related Subsidiaries Effective Date Section effective on the 90th day after Jan. 12, 1983 , or on any date which the President shall prescribe and publish in the Federal Register, with exceptions, see section 315 of Pub. L. 97–446 , set out as a note under section 2601 of this title . Executive Documents Delegation of Functions For delegation of certain functions of President under this section, see Ex. Ord. No. 12555 , Mar. 10, 1986 , 51 F.R. 8475 , set out as a note under section 2602 of this title .