Another of NHTSA's activities is the collection of data about motor vehicle crashes, available in various data files maintained by the National Center for Statistics and Analysis, in particular the Fatality Analysis Reporting System (FARS), the Crash Investigation Sampling System (CISS, where technicians investigate a random sample of police crash reports), and others. Additional federal vehicle standards are contained elsewhere in the CFR. The Federal Motor Vehicle Safety Standards are contained in the United States 49 CFR 571. The agency has asserted preemptive regulatory authority over greenhouse gas emissions, but this has been disputed by such state regulatory agencies as the California Air Resources Board. safety testing as well as the test protocols themselves, and provides vehicle insurance cost information.

NHTSA licenses vehicle manufacturers and importers, allows or blocks the import of vehicles and safety-regulated vehicle parts, administers the vehicle identification number (VIN) system, develops the anthropomorphic dummies used in U.S. FMVSS 209 was the first standard to become effective on March 1, 1967. NHTSA is charged with writing and enforcing Federal Motor Vehicle Safety Standards as well as regulations for motor vehicle theft resistance and fuel economy, as part of the Corporate Average Fuel Economy (CAFE) system. federal government, part of the Department of Transportation, focused on transportation safety in the United States. The National Highway Traffic Safety Administration ( NHTSA / ˈ n ɪ t s ə/ NITS-ə) is an agency of the U.S.

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