(a) This part sets forth procedures for, and interpretations of, section 31307 of the Moving Ahead for Progress in the 21st Century Act (MAP-21), Public Law 112-141, 126 Stat. 405, 765 (July 6, 2012) (codified at 49 U.S.C. 30171). MAP-21 provides for employee protection from retaliation because the employee has engaged in protected activity pertaining to the manufacture or sale of motor vehicles and motor vehicle equipment.

(b) This part establishes procedures under MAP-21 for the expeditious handling of retaliation complaints filed by employees, or by persons acting on their behalf. These rules, together with those codified at 29 CFR part 18, set forth the procedures under MAP-21 for submission of complaints, investigations, issuance of findings and preliminary orders, objections to findings and orders, litigation before administrative law judges (ALJs), post-hearing administrative review, and withdrawals and settlements. In addition, these rules provide the Secretary's interpretations on certain statutory issues.