49 CFR 390.6: Coercion prohibited.

(a) Prohibition. (1) A motor carrier, shipper, receiver, or transportation intermediary, including their respective agents, officers, or representatives, may not coerce a driver of a commercial motor vehicle to operate such vehicle in violation of 49 CFR parts 171-173, 177-180, 380-383 or 390-399, or §§ 385.415 or 385.421;

(2) A motor carrier or its agents, officers, or representatives, may not coerce a driver of a commercial motor vehicle to operate such vehicle in violation of 49 CFR parts 356, 360, or 365-379.

(b) Complaint process. (1) A driver who believes he or she was coerced to violate a regulation described in paragraph (a)(1) or (2) of this section may file a written complaint under § 386.12(c) of this subchapter.

(2) A complaint under paragraph (b)(1) of this section shall describe the action that the driver claims constitutes coercion and identify the regulation the driver was coerced to violate.

(3) A complaint under paragraph (b)(1) of this section may include any supporting evidence that will assist the Division Administrator in determining the merits of the complaint.