19 U.S.C. § 4513: Implementing actions in anticipation of entry into force; initial regulations; tariff proclamation authority

the President may proclaim such actions, and other appropriate officers of the United States Government may prescribe such regulations, Any action proclaimed by the President under the authority of this Act that is not subject to the consultation and layover provisions under section 4514 of this title may not take effect before the 15th day after the date on which the text of the proclamation is published in the Federal Register. The 15-day restriction contained in paragraph (2) on the taking effect of proclaimed actions is waived to the extent that the application of such restriction would prevent the taking effect on the date on which the USMCA enters into force of any action proclaimed under this section. Except as provided by paragraph (2) or (3), initial regulations necessary or appropriate to carry out the actions required by or authorized under this Act or proposed in the statement of administrative action approved under section 4511(a)(2) of this title to implement the USMCA shall, to the maximum extent feasible, be prescribed within 1 year after the date on which the USMCA enters into force. Interim or initial regulations to implement the Uniform Regulations regarding rules of origin provided for under article 5.16 of the USMCA shall be prescribed not later than the date on which the USMCA enters into force. In the case of any implementing action that takes effect on a date after the date on which the USMCA enters into force, initial regulations to carry out that action shall, to the maximum extent feasible, be prescribed within 1 year after such effective date. such modifications or continuation of any duty, such continuation of duty-free or excise treatment, or such additional duties, such modifications or continuation of any duty, such modifications as the United States may agree to with a USMCA country regarding the staging of any duty treatment set forth in the Schedule of the United States to Annex 2–B of the USMCA, including the appendices to that Annex, such continuation of duty-free or excise treatment, or such additional duties, For purposes of paragraphs (1) and (2), with respect to any good for which the base rate in the Schedule of the United States to Annex 2–B of the USMCA is a specific or compound rate of duty, the President shall substitute for the base rate an ad valorem rate that the President determines to be equivalent to the base rate. In implementing the tariff-rate quotas set forth in the Schedule of the United States to Annex 2–B of the USMCA, the President shall take such actions as may be necessary to ensure that imports of agricultural goods do not disrupt the orderly marketing of agricultural goods in the United States. the provisions set forth in Annex 4–B of the USMCA; the provisions set forth in paragraph 2 of article 3.A.6 of Annex 3–A of the USMCA; the provisions set forth in paragraph 5 of Annex 3–B of the USMCA; the provisions set forth in paragraphs 14(b), 14(c), and 15(e) of Section B of Appendix 2 to Annex 2–B of the USMCA; and any additional subordinate category that is necessary to carry out section 4531 of this title and section 4532 of this title consistent with the USMCA. Subject to the consultation and layover provisions of section 4514 of this title , the President may proclaim modifications to the provisions proclaimed under the authority of subparagraph (A), other than the provisions of chapters 50 through 63 of the USMCA. such modifications to the provisions proclaimed under the authority of subparagraph (A) as are necessary to implement an agreement with one or more USMCA countries pursuant to article 6.4 of the USMCA; and before the end of the 1-year period beginning on the date on which the USMCA enters into force, modifications to correct any typographical, clerical, or other nonsubstantive technical error regarding the provisions of chapters 50 through 63 of the USMCA.