citizen of Mexico
(1) An alien who is a citizen of Canada or Mexico, and the spouse and children of any such alien if accompanying or following to join such alien, who seeks to enter the United States under and pursuant to the provisions of Section D of Annex 16–A of the USMCA (as defined in section 4502 of title 19 ) to engage in business activities at a professional level as provided for in such Annex, may be admitted for such purpose under regulations of the Attorney General promulgated after consultation with the Secretaries of State and Labor. For purposes of this chapter, including the issuance of entry documents and the application of subsection (b), such alien shall be treated as if seeking classification, or classifiable, as a nonimmigrant under section 1101(a)(15) of this title . For purposes of this paragraph, the term “citizen of Mexico” means “citizen” as defined in article 16.1 of the USMCA.