Laws & Regulations
Contact NHTSA
- Email NHTSA
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Call NHTSA
- Toll-Free:
1-888-327-4236 - Hearing Impaired (TTY): 1-800-424-9153
- Toll-Free:
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Mail NHTSA
- NHTSA Headquarters
- 1200 New Jersey Avenue, SE
- West Building
- Washington, DC 20590
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Media inquiries:
- 202-366-9550
Information on NHTSA Budgets, Programs and Grants
Latest News
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September 12, 2012NHTSA Announces Model Year 2013 Vehicles to be Rated Under Government 5-Star Safety Ratings Program
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September 05, 2012'BACK TO SCHOOL' SAFETY ADVISORY: NHTSA and Chuggington™ Remind Parents and Students To Think Safe, Ride Safe, Be Safe!
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August 31, 2012U.S. DOT Teams Up With Mazda Motorsports, Project Yellow Light, the Ad Council, and NOYS to Engage Young Drivers in Anti-Distracted Driving Campaign
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August 28, 2012Obama Administration Finalizes Historic 54.5 mpg Fuel Efficiency Standards
Interpretation Letters Database Search
NHTSA's Chief Counsel interprets statutes that the agency administers and the regulations that it promulgates. The Chief Counsel's interpretations, issued in the form of letters responding to questions from the motor vehicle industry and the public, represent the definitive view of the agency on the questions addressed and may be relied upon by the regulated industry and members of the public. Besides being accessible online, these interpretations are also available to the public in the agency's technical reference library in Washington.