19 U.S.C. § 4031

1. (a)
   1. (1)The President may proclaim—as the President determines to be necessary or appropriate to carry out or apply articles 3.3, 3.5, 3.6, 3.21, 3.26, 3.27, and 3.28, and Annexes 3.3, 3.27, and 3.28 of the Agreement.
      1. (A)such modifications or continuation of any duty,
      2. (B)such continuation of duty-free or excise treatment, or
      3. (C)such additional duties,
   2. (2)Notwithstanding section 502(a)(1) of the Trade Act of 1974 (19 U.S.C. 2462(a)(1)), the President shall terminate the designation of each CAFTA–DR country 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 the Agreement enters into force with respect to that country.
   3. (3)
      1. (A)Notwithstanding section 212(a) of the Caribbean Basin Economic Recovery Act (19 U.S.C. 2702(a)), the President shall terminate the designation of each CAFTA–DR country as a beneficiary country for purposes of that Act [19 U.S.C. 2701 et seq.] on the date the Agreement enters into force with respect to that country.
      2. (B)Notwithstanding subparagraph (A), each such country shall be considered a beneficiary country under section 212(a) of the Caribbean Basin Economic Recovery Act [19 U.S.C. 2702(a)], for purposes of—
         1. (i)sections 1677(7)(G)(ii)(III) and 1677(7)(H) of this title;
         2. (ii)the duty-free treatment provided under paragraph 12 of Appendix I of the General Notes to the Schedule of the United States to Annex 3.3 of the Agreement; and
         3. (iii)section 274(h)(6)(B) of title 26.
2. (b)Subject to the consultation and layover provisions of section 4014 of this title, the President may proclaim—as the President determines to be necessary or appropriate to maintain the general level of reciprocal and mutually advantageous concessions provided for by the Agreement.
   1. (1)such modifications or continuation of any duty,
   2. (2)such modifications as the United States may agree to with a CAFTA–DR country regarding the staging of any duty treatment set forth in Annex 3.3 of the Agreement,
   3. (3)such continuation of duty-free or excise treatment, or
   4. (4)such additional duties,
3. (c)For purposes of subsections (a) and (b), with respect to any good for which the base rate in the Schedule of the United States to Annex 3.3 of the Agreement 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.