Federal Motor Vehicle Safety Standards Explained

The Federal Motor Vehicle Safety Standards (FMVSS) are U.S. federal vehicle regulations specifying design, construction, performance, and durability requirements for motor vehicles and regulated automobile safety-related components, systems, and design features. They are the U.S. counterpart to the UN Regulations developed by the World Forum for Harmonization of Vehicle Regulations and recognized to varying degree by most countries except the United States. Canada has a system of analogous rules called the Canada Motor Vehicle Safety Standards (CMVSS), which overlap substantially but not completely in content and structure with the FMVSS. The FMVSS/CMVSS requirements differ significantly from the international UN requirements, so private import of foreign vehicles not originally manufactured to North American specifications is difficult or impossible.

Structure

FMVSS are currently codified in Title 49 of the Code of Federal Regulations, Part 571, Subpart B, with each FMVSS standard as a section of Part 571, e.g., FMVSS Standard No. 101 is . FMVSS are developed and enforced by the National Highway Traffic Safety Administration (NHTSA) pursuant to statutory authorization in the form of the National Traffic and Motor Vehicle Safety Act of 1966, which is now codified at .

FMVSS are divided into three categories: crash avoidance (100-series), crashworthiness (200-series), and post-crash survivability (300-series). The first regulation, FMVSS No. 209, was adopted on 1 March 1967 and remains in force to date though its requirements have been periodically updated and made more stringent. It stipulates the requirements for seat belts in roadgoing vehicles.

Other FMVSS include:[1]

Crash avoidance

FMVSS No. 107: [Reserved] (previously "Reflecting surfaces", rescinded in 1996) FMVSS No. 112: [Reserved] (previously "Headlamp concealment devices", canceled in 1996 and incorporated into #108)[2] FMVSS No. 115: [Reserved] (previously "Vehicle identification number", moved to Part 565 in 1983) FMVSS No. 127: [Reserved] (previously "Speedometers and odometers", revoked in 1982)FMVSS No. 128: [Reserved] (previously "Fields of direct view", rescinded in 1981) FMVSS No. 140: [Proposed] ("Parts and Accessories Necessary for Safe Operation; Speed Limiting Devices", released for public comment in September 2016)

Crashworthiness

FMVSS No. 211: [Reserved] (previously "Wheel nuts, wheel discs and hub caps") FMVSS No. 215: [Reserved] (previously "Exterior protection")

Post-crash survivability

Miscellaneous

FMVSS No. 402: [Reserved] (previously "Radiator and coolant reservoir caps venting of motor vehicle coolant systems")

Other regulations relating to transportation

Aside from the FMVSS in Part 571, there are numerous federal regulations pertaining to motor vehicles under Title 49, including:

Part 586: [Reserved] Part 589: [Reserved]Part 590: [Reserved] Part 596: [Reserved]Part 597: [Reserved]Part 598: [Reserved]

External links

Notes and References

  1. Web site: Federal Motor Vehicle Safety Standards and Regulations. 2016-01-24. 2014-05-07. https://web.archive.org/web/20140507031818/http://www.nhtsa.gov/cars/rules/import/FMVSS/index.html. dead.
  2. "Cost and Weight Added by the Federal Motor Vehicle Safety Standards for Model Years 1968-2001 in Passenger Cars and Light Trucks" . DOT HS 809 834 . Tarbet, Marcia J. . December 2004 . National Highway Traffic Safety Administration . 30 April 2021.