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.
|226||49 CFR Parts 571, 585||
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.
|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.
|NHTSA: 49 CFR Parts 531, 533, and 537; EPA: 40 CFR Parts 86 and 600||
Establish Light-Duty Vehicle Greenhouse Gas Emission Standards and CAFE Standards
EPA and NHTSA are issuing this joint proposal to establish a National Program consisting of new standards for light-duty vehicles that will reduce greenhouse gas emissions and improve fuel economy. EPA is proposing greenhouse gas emissions standards under the Clean Air Act, and NHTSA is proposing Corporate Average Fuel Economy standards under the Energy Policy and Conservation Act, as amended. These standards apply to passenger cars, light-duty trucks, and medium-duty passenger vehicles, covering model years 2012 through 2016, and represent a harmonized and consistent National Program. Under the National Program, automobile manufacturers would be able to build a single light-duty national fleet that satisfies all requirements under both programs while ensuring that consumers still have a full range of vehicle choices.
|49 CFR Part 563||
Event Data Recorders
EDRs in Vehicles
|49 CFR Part 563||
Event Data Recorders (EDRs)
|49 CFR Part 563||
Event Data Recorders -- Final Rule; response to petitions for reconsideration
NOTE: In Table III of this document, the accuracy specification for the "Frontal air bag deployment, time to deploy/first stage, driver" should read +/- 2 ms. We have determined that the missing number is a typographical error that is not present in the originally signed notice. A correction notice to fix this error will soon be published in the Federal Register.
Exemption From the Make Inoperative
|208||49 CFR Part 595||
Exemption from the Make Inoperative Prohibition
|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
|49 CFR Part 571||
Federal Motor Vehicle Safety Standards: Low Speed Vehicles