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.
At the request of the Commission, the Secretary of Homeland Security shall consult with the Commission and shall collect and maintain such additional data and other information on commercial motor vehicles entering or exiting the United States at a port of entry or exit at the United States border with Mexico as the Commission may request for the purpose of conducting investigations under subsection (a) and shall make such information available to the Commission in a timely manner.
At the request of the Commission, the Secretary of Homeland Security, the Secretary of Transportation, the Secretary of Commerce, the Secretary of Labor, and the head of any other Federal agency shall make available to the Commission any information in their possession, including proprietary information, as the Commission may require in order to assist the Commission in making determinations under subsection (a).
The Commission shall promulgate regulations to provide access to confidential business information under protective order to authorized representatives of interested parties who are parties to an investigation under subsection (a).
Not later than 120 days after the date on which an investigation is initiated under subsection (a) with respect to a petition, request, or resolution, the Commission shall make a determination with respect to the petition, request, or resolution.
If, before the 100th day after an investigation is initiated under subsection (a), the Commission determines that the investigation is extraordinarily complicated, the Commission shall make its determination with respect to the investigation not later than 150 days after the date referred to in paragraph (1).