19 U.S.C. § 2701Section
§ 2701. Authority to grant duty-free treatment
The President may proclaim duty-free treatment (or other preferential treatment) for all eligible articles from any beneficiary country in accordance with the provisions of this chapter.
(Pub. L. 98–67, title II, §211, Aug. 5, 1983, 97 Stat. 384; Pub. L. 106–200, title II, §211(e)(1)(A), May 18, 2000, 114 Stat. 287.)