From Consumer Wiki
The National Highway Traffic Safety Administration (NHTSA) establishes motor vehicle safety standards for domestic and foreign vehicles that are manufactured for sale in the United States. It enforces compliance with these standards through testing programs, major recalls, surveys, imposition of civil penalties (fines), and if necessary, court action. The administration investigates possible defects related to the safety of vehicles and vehicle equipment.
National Highway Traffic Safety Administration (NHTSA)
1200 New Jersey Avenue, SE West Building
Washington, DC 20590
Anything involving vehicle safety or odometer law violations including; recalls/safety problems, establishes/enforces safety standards, minimum performance standards for certain parts of vehicles and performance of the vehicle as a unit.
Complaints Outside Jurisdiction:
Warranty problems; Lemon Law problems (unless involving safety); automobile paint problems; rusting problems (unless involving safety).