U.S. Code > Title 19 Customs Duties > CHAPTER 21—NORTH AMERICAN FREE TRADE (§§ 3301—3473) > SUBCHAPTER II—CUSTOMS PROVISIONS (§§ 3331—3335) > § 3331. Tariff modifications

§ 3331. Tariff modifications

(a) Tariff modifications provided for in Agreement
(1) Proclamation authority
The President may proclaim—
(A) such modifications or continuation of any duty,
(B) such continuation of duty-free or excise treatment, or
(C) such additional duties,
as the President determines to be necessary or appropriate to carry out or apply articles 302, 305, 307, 308, and 703 and Annexes 302.2, 307.1, 308.1, 308.2, 300–B, 703.2, and 703.3 of the Agreement.
(2) Effect on Mexican GSP status
Notwithstanding section 502(f)(2) of the Trade Act of 1974 [19 U.S.C. 2462 (f)(2)], the President shall terminate the designation of Mexico as a beneficiary developing country for purposes of title V of the Trade Act of 1974 [19 U.S.C. 2461 et seq.] on the date of entry into force of the Agreement between the United States and Mexico.
(b) Other tariff modifications
(1) In general
Subject to paragraph (2) and the consultation and layover requirements of section 3313 (a) of this title, the President may proclaim—
(A) such modifications or continuation of any duty,
(B) such modifications as the United States may agree to with Mexico or Canada regarding the staging of any duty treatment set forth in Annex 302.2 of the Agreement,
(C) such continuation of duty-free or excise treatment, or
(D) such additional duties,
as the President determines to be necessary or appropriate to maintain the general level of reciprocal and mutually advantageous concessions with respect to Canada or Mexico provided for by the Agreement.
(2) Special rule for articles with tariff phaseout periods of more than 10 years
The President may not consider a request to accelerate the staging of duty reductions for an article for which the United States tariff phaseout period is more than 10 years if a request for acceleration with respect to such article has been denied in the preceding 3 calendar years.
(c) Conversion to ad valorem rates for certain textiles
For purposes of subsections (a) and (b) of this section, with respect to an article covered by Annex 300–B of the Agreement imported from Mexico for which the base rate in the Schedule of the United States in Annex 300–B is a specific or compound rate of duty, the President may substitute for the base rate an ad valorem rate that the President determines to be equivalent to the base rate.