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Regulations

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 Sort descending Subject Actions
 

121

49 CFR Part 571

Air Brake Systems

Amends the FMVSS on air brake systems to improve the stopping distance performance of truck tractors. The rule requires the vast majority of new heavy truck tractors to achieve a 30 percent reduction in stopping distance compared to currently required levels. For these heavy truck tractors (approximately 99 percent of the fleet), the amended standard requires those vehicles to stop in not more than 250 feet when loaded to their gross vehicle weight rating (GVWR) and tested at a speed of 60 miles per hour (mph). For a small number of very heavy severe service tractors, the stopping distance requirement will be 310 feet under these same conditions. In addition, this final rule requires that all heavy truck tractors must stop within 235 feet when loaded to their “lightly loaded vehicle weight” (LLVW).

49 CFR Part 571 Theft Protection and Rollaway Prevention

49 CFR Part 571 School Bus Pedestrian Safety Devices

49 CFR Part 571

Occupant Crash Protection

108

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

Child Restraint Systems

108

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

Federal Motor Vehicle Safety Standards; Rearview Mirrors

In response to a petition for rulemaking, this document proposes to require straight trucks with a gross vehicle weight rating (GVWR) of between 4,536 kilograms (10,000 pounds) and 11,793 kilograms (26,000 pounds) to be equipped with a rear object detection system.

136 49 CFR Part 571 Electronic Stability Control Systems for Heavy Vehicles

This proposes to establish a new Federal Motor Vehicle Safety Standard No. 136 to require electronic stability control (ESC) systems on truck tractors and certain buses with a gross vehicle weight rating of greater than 11,793 kilograms (26,000 pounds). ESC systems in truck tractors and large buses are designed to reduce untripped rollovers and mitigate severe understeer or oversteer conditions that lead to loss of control by using automatic computer-controlled braking and reducing engine torque output. In 2012, we expect that about 26 percent of new truck tractors and 80 percent of new buses affected by this proposed rule will be equipped with ESC systems. We believe that ESC systems could prevent 40 to 56 percent of untripped rollover crashes and 14 percent of loss-of-control crashes. By requiring that ESC systems be installed on truck tractors and large buses, this proposal would prevent 1,807 to 2,329 crashes, 649 to 858 injuries, and 49 to 60 fatalities at less than $3 million per equivalent life saved, while generating positive net benefits.

222 49 CFR Part 571 School Bus Passenger Seating and Crash Protection

208 49 CFR Part 571 Seat Belts on Motorcoaches

In accordance with NHTSA’s 2007 Motorcoach Safety Plan and DOT’s 2009 Departmental Motorcoach Safety Action Plan, NHTSA is issuing this NPRM to propose to amend the Federal motor vehicle safety standard (FMVSS) on occupant crash protection (FMVSS No. 208) to require lap/shoulder seat belts for each passenger seating position in new motorcoaches.This NPRM also proposes to require a lap/shoulder belt for the motorcoach and large school bus driver’s seating positions, which currently are required to have either a lap or a lap/shoulder belt.

49 CFR Part 571

Child Restraint Systems; Child Restraint Anchorage Systems

49 CFR Part 571

Fuel System Integrity

49 CFR Part 571

Federal Motor Vehicle Safety Standards: Low Speed Vehicles

49 CFR Part 571

Head Impact Protection

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