; and (C) binational panels and extraordinary challenge committees established under NAFTA for matters covered by article 34.1 of the USMCA (relating to transition from NAFTA). (c) Reimbursement of certain expenses If the Canadian Section or the Mexican Section of the Secretariat provides funds to the United States Section during any fiscal year as reimbursement for expenses in connection with dispute settlement proceedings under section D of chapter 10 or chapter 31 of the USMCA, or under chapter 19 of NAFTA, the United States Section may, notwithstanding section 3302 of title 31, United States Code, retain and use such funds to carry out the functions described in subsection (a)(2). 106. Trade Representative authority If a country (other than the United States) that has signed the USMCA does not enact implementing legislation, the Trade Representative is authorized to enter into negotiations with the other country that has signed the USMCA to consider how the applicable provisions of the USMCA can come into force with respect to the United States and that other country as promptly as possible. 107. Effective date (a) In general Sections 1 through 3 and this title (other than section 103(c)) shall take effect on the date of the enactment of this Act. (b) Proclamation authority Section 103(c) shall take effect on the date on which the USMCA enters into force. II Customs provisions 201. Exclusion of originating goods of USMCA countries from special agriculture safeguard authority (a) In general Section 405(e) of the Uruguay Round Agreements Act ( 19 U.S.C. 3602(e) ) is amended to read as follows: (e) Exclusion of originating goods of USMCA countries (1) In general The President shall exempt from any duty imposed under this section any good that qualifies as an originating good under section 202 of the United States-Mexico-Canada Agreement Implementation Act of a USMCA country with respect to which preferential tariff treatment is provided under the USMCA. (2) Definitions In this subsection, the terms preferential