; and . (b) Effective date (1) In general The amendments made by subsection (a) shall— (A) take effect on the date on which the USMCA enters into force; and (B) apply with respect to a good entered for consumption, or withdrawn from warehouse for consumption, on or after that date. (2) Transition from NAFTA treatment In the case of a good entered for consumption, or withdrawn from warehouse for consumption, before the date on which the USMCA enters into force— (A) the amendments made by subsection (a) to section 520(d) of the Tariff Act of 1930 ( 19 U.S.C. 1520(d) ) shall not apply with respect to the good; and (B) section 520(d) of such Act, as in effect on the day before that date, shall continue to apply on and after that date with respect to the good. 206. Recordkeeping requirements (a) In general Section 508 of the Tariff Act of 1930 ( 19 U.S.C. 1508 ) is amended— (1) by striking subsection (b) and inserting the following: (b) Exports and imports relating to USMCA countries (1) Definitions In this subsection: (A) USMCA; USMCA country The terms USMCA and USMCA country have the meanings given those terms in section 3 of the United States-Mexico-Canada Agreement Implementation Act . (B) USMCA certification of origin The term USMCA certification of origin means the certification established under article 5.2.1 of the USMCA that a good qualifies as an originating good under the USMCA. (2) Exports to USMCA countries Any person who completes a USMCA certification of origin or provides a written representation for a good exported from the United States to a USMCA country shall make, keep, and, pursuant to rules and regulations prescribed by the Secretary of the Treasury, render for examination and inspection, all records and supporting documents related to the origin of the good (including the certification or copies thereof), including records related to— (A) the purchase, cost, value, and shipping of, and payment for, the good