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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.

100 Results
FMVSS Number Partsort descending Subject Actions
 
126 49 CFR Parts 571 & 585 Federal Motor Vehicle Safety Standards; Electronic Stability Control Systems

As part of a comprehensive plan for reducing the serious risk of rollover crashes and the risk of death and serious injury in those crashes, this rule establishes Federal Motor Vehicle Safety Standard (FMVSS) No. 126 to require electronic stability control (ESC) systems on passenger cars, multipurpose passenger vehicles, trucks, and buses with a gross vehicle weight rating of 4,536 Kg (10,000 pounds) or less. ESC systems use automatic computer-controlled braking of individual wheels to assist the driver in maintaining control in critical driving situations. NHTSA estimates ESC will reduce single-vehicle crashes of passenger cars by 34% and single vehicle crashes of sport utility vehicles (SUVs) by 59%, with a much greater reduction of rollover crashes. NHTSA estimates ESC would save 5,300 to 9,600 lives and prevent 156,000 to 238,000 injuries in all types of crashes annually once all light vehicles on the road are equipped with ESC.

Notice of Proposed Rulemaking: Federal Motor Vehicle Safety Standards; Electronic Stability Control Systems 1.25 MB Final Regulatory Impact Analysis: Electronic Stability Control Systems 1.48 MB Final Rule: Federal Motor Vehicle Safety Standards;  Electronic Stability Control Systems; Controls and Displays 4.4 MB Preliminary Regulatory Impact Analysis: Electronic Stability Control Systems On Heavy Vehicles 706.27 KB
216 49 CFR Parts 571 and 585 Roof Crush Resistance; Phase-In Reporting Requirements

As part of a comprehensive plan for reducing the risk of rollover crashes and the risk of death and serious injury in those crashes, this final rule upgrades the agency’s safety standard on roof crush resistance in several ways.

Final Rule: Federal Motor Vehicle Safety Standards; Roof Crush Resistance; Phase-In Reporting Requirements 681.14 KB
216 49 CFR Parts 571 and 585 Roof Crush Resistance

As part of a comprehensive plan for reducing the risk of rollover crashes and the risk of death and serious injury in those crashes, this final rule upgrades the agency’s safety standard on roof crush resistance in several ways.

Supplemental notice of proposed rulemaking (SNPRM): Federal Motor Vehicle Safety Standards; Roof Crush Resistance 222.13 KB Final Rule: Federal Motor Vehicle Safety Standards; Roof Crush Resistance; Phase-In Reporting Requirements 681.14 KB Extension of comment period: Federal Motor Vehicle Safety Standards; Roof Crush Resistance 33.79 KB Preliminary Regulatory Impact Analysis
49 CFR Parts 571 and 585 FMVSS-Tire Pressure Monitoring Systems

Final Rule; response to petitions for reconsideration: Federal Motor Vehicle Safety Standards; Tire Pressure Monitoring Systems 409.97 KB
49 CFR Parts 571 and 585 FMVSS-Tire Pressure Monitoring Systems;Controls and Displays

Final Rule - Federal Motor Vehicle Safety Standards; Tire Pressure Monitoring Systems; Controls and Displays 3 MB
214 49 CFR Parts 571 and 585 Side Impact Protection

This final rule incorporates a dynamic pole test into Federal Motor Vehicle Safety Standard (FMVSS) No. 214, “Side impact protection.” To meet the test, vehicle manufacturers will need to assure head and improved chest protection in side crashes. It will lead to the installation of new technologies, such as side curtain air bags and torso side air bags, which are capable of improving head and thorax protection to occupants of vehicles that crash into poles and trees and vehicles that are laterally struck by a higher-riding vehicle.

Final Rule: Occupant Protection in Interior Impact; Side Impact Protection; Fuel System Integrity; Electric-Powered Vehicles: Electrolyte Spillage and Electrical Shock Protection; Side Impact Phase-In Reporting Requirements 1001.16 KB
226 49 CFR Parts 571, 585 Ejection Mitigation

This final rule establishes a new Federal Motor Vehicle Safety Standard No. 226, "Ejection Mitigation" to reduce the partial and complete ejection of vehicle occupants through side windows in crashes, particularly rollover crashes. The standard applies to the side windows next to the first three rows of seats, and to a portion of the cargo area behind the first or second rows, in motor vehicles with a gross vehicle weight rating (GVWR) of 4,536 kilogram (kg) or less (10,000 pounds (lb) or less). To assess compliance, the agency is adopting a test in which an impactor is propelled from inside a test vehicle toward the windows. The ejection mitigation safety system is required to prevent the impactor from moving more than a specified distance beyond the plane of a window.

Final Rule: Ejection Mitigation; Phase-In Reporting Requirements; Incorporation by Reference 1.45 MB
49 CFR Parts 571, 585, 586, 589, 590, 596, 597 Occupant Crash Protection

This document adopts NHTSA’s proposal to require all designated seating positions in rear seats, other than side-facing seats, be equipped with Type 2 integral lap/shoulder safety belts. Side-facing seats may be equipped with either a Type 1 lap belt or a Type 2 belt. This final rule responds to a Congressional mandate that the agency begin to phase-in requirements for lap/shoulder belts for all rear seating positions, wherever practicable, not later than September 1, 2005.

Final rule
49 CFR Parts 571, 585, 586, 589, 590, 596, 597 Occupant Crash Protection

This document adopts NHTSA’s proposal to require all designated seating positions in rear seats, other than side-facing seats, be equipped with Type 2 integral lap/shoulder safety belts. Side-facing seats may be equipped with either a Type 1 lap belt or a Type 2 belt. This final rule responds to a Congressional mandate that the agency begin to phase-in requirements for lap/shoulder belts for all rear seating positions, wherever practicable, not later than September 1, 2005.

Final rule
121 49 CFR, Part 571 Federal Motor Vehicle Safety Standard; Air Brake Systems

Regarding trailers with antilock brake systems being equipped with an external antilock malfunction indicator lamp

Interim Final Rule, Federal Motor Vehicle Safety Standard; Air Brake Systems 73.52 KB Notice of Proposed Rulemaking: Federal Motor Vehicle Safety Standard; Air Brake Systems 77.33 KB
National Highway Traffic Safety Administration Federal Motor Vehicle Safety Standards (FMVSS)

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