; tariff proclamation authority (a) Implementing actions (1) Proclamation authority After the date of the enactment of this Act— (A) the President may proclaim such actions, and (B) other appropriate officers of the United States Government may prescribe such regulations, as may be necessary to ensure that any provision of this Act, or amendment made by this Act, that takes effect on the date on which the USMCA enters into force is appropriately implemented on such date, but no such proclamation or regulation may have an effective date earlier than the date on which the USMCA enters into force. (2) Effective date of certain proclaimed actions Any action proclaimed by the President under the authority of this Act that is not subject to the consultation and layover provisions under section 104 may not take effect before the 15th day after the date on which the text of the proclamation is published in the Federal Register. (3) Waiver of 15-day restriction 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. (b) Initial regulations (1) In general 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 101(a)(2) 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. (2) Uniform Regulations 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. (3) Implementing actions with effective dates after entry into force In the case of any implementing action that takes effect on