national highway traffic safety administration
National Highway Traffic Safety Administration. A unit in the U.S. Department of Transportation responsible for regulating the safety of motor vehicles and their equipment. • The agency’s work focuses on matters such as theft prevention, speed limits, truthful odometer readings, and fuel consumption. It was established by the Highway Safety Act of 1970.23 USCA §§ 101 et seq. — Abbr. NHTSA.