; and (2) by adding at the end the following: (2) (A) In this subsection, the term retail trade does not include any electronic commerce transaction in which articles with a fair retail value in the country of shipment or in a foreign-trade zone of less than the amount specified in section 321(a)(2)(C) of the Tariff Act of 1930 ( 19 U.S.C. 1321(a)(2)(C) ) are withdrawn from a zone. (B) For purposes of subparagraph (A), the term ‘electronic commerce’ means the production, distribution, marketing, sale, or delivery of goods and services by electronic means. . (b) Effective date The amendments made by subsection (a) shall take effect on the date on which the final regulations to implement this Act and the amendments made by this Act take effect in accordance with section 4(b). 4. Proposed and final regulations (a) Proposed regulations (1) In general Not later than 120 days after the date of the enactment of this Act, the Secretary of the Treasury, in coordination with the Secretary of Homeland Security and the Secretary of Commerce, shall prescribe proposed regulations to implement this Act and the amendments made by this Act in accordance with the requirements described in this section. (2) Matters to be included The regulations described in paragraph (1) shall, at minimum— (A) use a distinct valuation method under section 146.65(b)(2) of title 19, Code of Federal Regulations, for calculation of dutiable value of entries made under section 321(a)(2) of the Tariff Act of 1930 ( 19 U.S.C. 1321(a)(2) ), as amended by section 2(a)(1), from the foreign trade zone; and (B) require such calculation of dutiable value to be based on the transaction value at the time of withdrawal from the foreign trade zone. (3) Requirements The Secretary of the Treasury, in coordination with the Secretary of Homeland Security and the Secretary of Commerce, shall— (A) publish the proposed regulations described in paragraph (1) in the Federal Register and provide for a 60-day period for public review and comment on such regulations