Skip to main content

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.



100 Results
FMVSS Number Part Sort descending Subject Actions
 

49 CFR Part 571

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

49 CFR Part 571

Tire Pressure Monitoring Systems; Controls and Displays
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 School Bus Pedestrian Safety Devices

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

Federal Motor Vehicle Safety Standards; Tires

49 CFR Part 571

Occupant Crash Protection
138 49 CFR Part 571 Tire Pressure Monitoring System

108

49 CFR Part 571

Lamps, Reflective Devices, and Associated Equipment

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

118 49 CFR Part 571 FMVSS, Power-operated window, partition, and roof panel systems

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, 572, 589

Head Impact Protection

49 CFR Part 571, 572, 589

Head Impact Protection

49 CFR Part 571, 598

Federal Motor Vehicle Safety Standards; Side Impact Protection; Side Impact Phase-In Reporting Requirements

NHTSA on the Federal Register

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