19 U.S.C. § 1821 - U.S. Code - Unannotated Title 19. Customs Duties § 1821. Basic authority for trade agreements

(1) after June 30, 1962, and before July 1, 1967, enter into trade agreements with foreign countries or instrumentalities thereof; and

(2) proclaim such modification or continuance of any existing duty or other import restriction, such continuance of existing duty-free or excise treatment, or such additional import restrictions, as he determines to be required or appropriate to carry out any such trade agreement.

(1) decreasing any rate of duty to a rate below 50 percent of the rate existing on July 1, 1962; or

(2) increasing any rate of duty to (or imposing) a rate more than 50 percent above the rate existing on July 1, 1934.