; or (B) United States suppliers, operators, or drivers providing cross-border long-haul trucking services in a specific sub-market of the whole United States market. 322. Investigations and determinations by Commission (a) Investigation Upon the filing of a petition by an interested party described in subparagraph (A), (B), or (C) of section 321(8) which is representative of a United States long-haul trucking services industry, or at the request of the President or the Trade Representative, or upon the resolution of the Committee on Ways and Means of the House of Representatives or the Committee on Finance of the Senate, the International Trade Commission (in this subtitle referred to as the Commission ) shall promptly initiate an investigation to determine— (1) whether a request by a person of Mexico to receive a grant of authority that is pending as of the date of the filing of the petition threatens to cause material harm to a United States long-haul trucking services industry; (2) whether a person of Mexico who has received a grant of authority on or after the date of entry into force of the USMCA and retains such grant of authority is causing or threatens to cause material harm to a United States long-haul trucking services industry; or (3) whether, with respect to a person of Mexico who has received a grant of authority before the date of entry into force of the USMCA and retains such grant of authority, there has been a change in circumstances such that such person of Mexico is causing or threatens to cause material harm to a United States long-haul trucking services industry. (b) Transmission of petition, request, or resolution The Commission shall transmit a copy of any petition, request, or resolution filed under subsection (a) to the Trade Representative and the Secretary of Transportation. (c) Publication and hearings The Commission shall— (1) promptly publish notice of the commencement of any investigation under subsection (a) in the Federal Register