Section 304 of the Tariff Act of 1930 ( 19 U.S.C. 1304 ) is amended by striking subsection (k) and inserting the following: (k) Treatment of goods of a USMCA country In applying this section to an article that qualifies as a good of a USMCA country (as defined in section 3 of the United States-Mexico-Canada Agreement Implementation Act )— (1) the exemption under subsection (a)(3)(H) shall be applied by substituting reasonably know for necessarily know