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NHTSA issues Federal Motor Vehicle Safety Standards (FMVSS) to implement laws from Congress. These regulations allow us to fulfill our mission to prevent and reduce vehicle crashes.

96 Results
FMVSS Number Part Subject Actions

49 CFR Part 571

Head Restraints


Head Restraints for Passenger Vehicles

49 CFR Part 591

Importation of Commercial Motor Vehicles

This document proposes to add a definition of the term "import" to our regulation on the importation of motor vehicles.

403, 404 571 Interpretations


49 CFR Part 571

Lamps, Reflective Devices, and Associated Equipment

Issues related to glare produced by lamps mounted on the fronts of vehicles


49 CFR Part 571

Lamps, Reflective Devices, and Associated Equipment

Issues related to glare produced by lamps mounted on the fronts of vehicles

49 CFR Part 533

Light Truck Average Fuel Economy Standards, Model Years 2005-2007

This final rule established the average fuel economy standards for light trucks that will be manufactured in the 2005-2007 model years (MYs). Chapter 329 of Title 49 of the United States Code requires the issuance of these standards. The standards for all light trucks manufactured by a manufacturer is set at 21.0 mpg for MY 2005, 21.6 mpg for MY 2006, and 22.2 mpg for MY 2007. This rule is effective May 5, 2003.

49 CFR Parts 523, 533 and 537 Light Truck Average Fuel Economy Standards, Model Years 2008-2011

This final rule reforms the structure of the corporate average fuel economy (CAFE) program for light trucks and establishes higher CAFE standards for model year (MY) 2008-2011 light trucks. Reforming the CAFE program will enable it to achieve larger fuel savings, while enhancing safety and preventing adverse economic consequences.

214 595 Make Inoperative Exemptions

108, 226 595 Make Inoperative Exemptions; Vehicle Modifications To Accommodate People With Disabilities; Ejection Mitigation

208 49 CFR Part 571 Monitoring the Performance of Advanced Air Bags and Developing Data for Potential Future Air Bag Rulemakings

218 49 CFR Part 571. Motorcycle Helmets

A notice of proposed rulemaking (NPRM) amending FMVSS No. 218 was published on May 21, 2015 (80 FR 29458). The NPRM set forth an interpretation of the definition of “motor vehicle equipment” in the United States Code, as amended by the Moving Ahead for Progress in the 21st Century (MAP–21) Act, and requested comments on two proposed changes to the motorcycle helmet safety standard, FMVSS No. 218. NHTSA proposed to add a definition of “motorcycle helmet” and modify the existing performance requirements of the standard by adding a set of dimensional and compression requirements. These requirements and the associated test procedures would identify those helmets whose physical characteristics indicate that they likely cannot meet the existing performance requirements of the standard. Third, NTHSA proposed an optional alternative compliance process for manufacturers whose helmets do not comply with the proposed dimensional and compression requirements, but do comply with the performance requirements and all other aspects of FMVSS No. 218 . If this proposal is adopted, NHTSA will publish a list of helmets that have complied with the alternative compliance process and can therefore be certified by their manufacturers. The NPRM was the result of the agency’s assessment of other actions that could be taken to further increase the percentage of motorcyclists who wear helmets that comply with the helmet standard.

49 CFR Part 139

New Pneumatic Tires for Light Vehicles
Nissan North America, Inc. Petition for Exemption from Two-Fleet Rule Affecting Compliance with Passenger Automobile Fuel Economy Standards

Nissan filed a petition requesting exemption from the two fleet rule for the 2006-2010 model years. The two fleet rule, which is contained in the CAFE statute, requires that a manufacturer divide its passenger automobiles into two fleets, a domestically-manufactured fleet and a non-domestically manufactured fleet, and ensure that each fleet separately meets the CAFE standards for passenger automobiles. The CAFE statute requires NHTSA to grant such a petition unless it finds that doing so would result in reduced employment in the U.S. related to motor vehicle manufacturing. NHTSA’s analysis does not support a finding that granting the petition would reduce automotive manufacturing employment in the United States. Accordingly, in this notice, NHTSA is granting Nissan’s petition.


NPRM on Tire Pressure Monitoring Systems

NHTSA on the Federal Register

View notices, proposed rules and final rules NHTSA administers. Also respond to requests for comment.