National Highway Traffic Safety Administration
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The National Highway Traffic Safety Administration (NHTSA ) is an agency of the U.S. federal government, part of the Department of Transportation. It describes its mission as "Save lives, prevent injuries, reduce vehicle-related crashes" related to transportation safety in the United States. NHTSA is charged with writing and enforcing
Federal Motor Vehicle Safety Standards 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 ...
as well as regulations for motor vehicle theft resistance and fuel economy, as part of the Corporate Average Fuel Economy (CAFE) system. FMVSS 209 was the first standard to become effective on March 1, 1967. NHTSA cannot licenses vehicle manufacturers and importers, allows or blocks the import of vehicles and safety-regulated vehicle parts, administers the vehicle identification number (VIN) system, develops the anthropomorphic dummies used in U.S. safety testing as well as the test protocols themselves, and provides vehicle insurance cost information. The agency has asserted preemptive regulatory authority over
greenhouse gas emissions Greenhouse gas emissions from human activities strengthen the greenhouse effect, contributing to climate change. Most is carbon dioxide from burning fossil fuels: coal, oil, and natural gas. The largest emitters include coal in China and ...
, but this has been disputed by such state regulatory agencies as the
California Air Resources Board The California Air Resources Board (CARB or ARB) is the "clean air agency" of the government of California. Established in 1967 when then-governor Ronald Reagan signed the Mulford-Carrell Act, combining the Bureau of Air Sanitation and the Moto ...
. The Federal Motor Vehicle Safety Standards are contained in the United States . Additional federal vehicle standards are contained elsewhere in the CFR. Another of NHTSA's major activities is the creation and maintenance of the data files maintained by the National Center for Statistics and Analysis. In particular, the
Fatality Analysis Reporting System Fatality Analysis Reporting System (FARS) was created in the United States by the National Highway Traffic Safety Administration (NHTSA) to provide an overall measure of highway safety, to help suggest solutions, and to help provide an objective ba ...
(FARS), has become a resource for traffic safety research not only in the United States, but throughout the world. Research contributions using FARS by researchers from many countries appear in many non-U.S. technical publications, and provide a significant database and knowledge bank on the subject. Even with this database, conclusive analysis of crash causes often remains difficult and controversial, with experts debating the veracity and statistical validity of results.


History

In 1964 and 1966, public pressure grew in the United States to increase the safety of cars, culminating with the publishing of ''
Unsafe at Any Speed ''Unsafe at Any Speed: The Designed-In Dangers of the American Automobile'' is a non-fiction book by consumer advocate Ralph Nader, first published in 1965. Its central theme is that car manufacturers resisted the introduction of safety features ( ...
'', by Ralph Nader, an activist lawyer, and the report prepared by the National Academy of Sciences entitled '' Accidental Death and Disability: The Neglected Disease of Modern Society''. In 1966, Congress held a series of publicized hearings regarding highway safety, passed legislation to make the installation of
seat belts A seat belt (also known as a safety belt, or spelled seatbelt) is a vehicle safety device designed to secure the driver or a passenger of a vehicle against harmful movement that may result during a collision or a sudden stop. A seat belt red ...
mandatory, and created the U.S. Department of Transportation on October 15, 1966 (). Legislation signed by President Lyndon Johnson earlier on September 9, 1966, included the National Traffic and Motor Vehicle Safety Act () and
Highway Safety Act The National Traffic and Motor Vehicle Safety Act was enacted in the United States in 1966 to empower the federal government to set and administer new safety standards for motor vehicles and road traffic safety. The Act was the first mandatory fede ...
() that created the National Traffic Safety Agency, the National Highway Safety Agency, and the National Highway Safety Bureau, predecessor agencies to what would eventually become NHTSA. Once the
Federal Motor Vehicle Safety Standards 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 ...
(FMVSS) came into effect, vehicles not certified by the maker or importer as compliant with US safety standards were no longer legal to import into the United States. Congress established NHTSA in 1970 with the Highway Safety Act of 1970 (Title II of , at ). In 1972, the Motor Vehicle Information and Cost Savings Act () expanded NHTSA's scope to include consumer information programs. Since then, automobiles have become far better at protecting their occupants in vehicle impacts. The number of deaths on American highways hovers around 33,000 annually, a lower death rate per vehicle-mile traveled than in the 1960s. NHTSA has conducted numerous high-profile investigations of automotive safety issues, including the Audi 5000/60 Minutes affair, the
Ford Explorer The Ford Explorer is a range of SUVs manufactured by Ford Motor Company since the 1991 model year. The first four-door SUV produced by Ford, the Explorer was introduced as a replacement for the two-door Bronco II. Within the current Ford light ...
rollover problem, and the Toyota sticky accelerator pedal problem. The agency has introduced a proposal to mandate Electronic Stability Control on all passenger vehicles by the 2012 model year. This technology was first brought to public attention in 1997, with the Swedish
moose test The evasive manoeuvre test ( Swedish: ''Undanmanöverprov''; colloquial: moose test or elk test; Swedish: ''Älgtest'', German: ''Elchtest'') is performed to determine how well a certain vehicle evades a suddenly appearing obstacle. This test ha ...
. Other than that, NHTSA has issued only a few regulations in the past 25 years. Most of the reduction in vehicle fatality rates during the last third of the 20th century were gained from the initial NHTSA safety standards during 1968–1984 and subsequent voluntary changes in vehicle
crashworthiness Crashworthiness is the ability of a structure to protect its occupants during an impact. This is commonly tested when investigating the safety of aircraft and vehicles. Depending on the nature of the impact and the vehicle involved, different crit ...
by vehicle manufacturers.


Regulatory performance

Audits by the U.S. Department of Transportation's Office of the Inspector General in 2011, 2014, 2015, 2016, 2018, and 2021 have concluded that NHTSA is ineffectual; the 2021 audit found NHTSA failing to effectively issue or update Federal Motor Vehicle Safety Standards or to act within legally-prescribed timeframes on petitions and investigations; having no process in place for critical agency responsibilities like evaluating petitions, and having failed to implement consensus recommendations derived from the Inspector General's audit a decade before, in 2011. The 2018 audit found NHTSA incapable of conducting adequate, timely safety recalls. The 2015 audit found NHTSA's collection and analysis of safety-related data to be inadequate, and the agency to be lackadaisical and careless in examining safety defects. Government data (from FARS for the U.S.) in a 2004 book by former General Motors safety researcher Leonard Evans shows other countries achieving greater traffic safety improvements over time than those achieved in the United States: Research suggests one reason the U.S. continues to lag in traffic safety is the relatively high prevalence in the U.S. of pickup trucks and SUVs, which a 2003 study by the U.S. Transportation Research Board found are significantly less safe than passenger cars. Comparisons of past data with the present in the U.S. can result in distortions, due to a significant population increase and since the level of large commercial truck traffic has substantially increased from the 1960s, but highway capacity has not kept up. However, other factors exert significant influence; Canada has lower roadway death and injury rates despite a vehicle mix and regulations similar to those of the U.S. Nevertheless, the widespread use of truck-based vehicles as passenger carriers is correlated with roadway deaths and injuries not only directly by dint of vehicular safety performance ''per se'', but also indirectly through the relatively low fuel costs that facilitate the use of such vehicles in North America. Motor vehicle fatalities decline as gasoline prices increase.


International counterparts and the grey market

In 1958, under the auspices of the
United Nations The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and security, develop friendly relations among nations, achieve international cooperation, and be a centre for harmoniz ...
, a consortium called the Economic Commission for Europe had been established to normalize vehicle regulations across Europe to standardize best practices in vehicle design and equipment and minimize technical barriers to pan-European vehicle trade and traffic. This eventually became the
World Forum for Harmonization of Vehicle Regulations The World Forum for Harmonization of Vehicle Regulations is a working party (WP.29) of the Inland Transport Committee (ITC) of the United Nations Economic Commission for Europe (UNECE). Its responsibility is to manage the multilateral Agreements ...
, which began to promulgate what would eventually become the UN Regulations on the design, construction, and safety and emissions performance of vehicles and their components. Many of the world's countries accept or require vehicles and equipment built to the UN Regulations, but the U.S does not recognize the UN Regulations and blocks the importation of vehicles and components not manufacturer-certified as complying with the U.S. regulations. Because of the unavailability in America of certain vehicle models, a
grey market A grey market or dark market (sometimes confused with the similar term " parallel market") is the trade of a commodity through distribution channels that are not authorized by the original manufacturer or trade mark proprietor. Grey market pr ...
arose in the late 1970s. This provided a method to acquire vehicles not officially offered in the United States, but enough vehicles imported this way were faulty, shoddy, and unsafe that
Mercedes-Benz Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...
of North America helped launch a successful congressional lobbying effort to close down the grey market in 1988. As a result, it was no longer possible to import foreign vehicles into the United States as a personal import, with few exceptions—primarily vehicles meeting Canadian regulations substantially similar to those of the United States, and vehicles imported temporarily for display or research purposes. In practice, the gray market involved a few thousand cars annually, before its virtual elimination in 1988. In 1998, NHTSA exempted vehicles older than 25 years from the rules it administers, since these are presumed to be collector vehicles. In 1999, certain very low production volume specialist vehicles were also exempt for " Show and Display" purposes. In the mid-1960s, when the framework was established for US vehicle safety regulations, the US auto market was an oligopoly, with three companies ( GM,
Ford Ford commonly refers to: * Ford Motor Company, an automobile manufacturer founded by Henry Ford * Ford (crossing), a shallow crossing on a river Ford may also refer to: Ford Motor Company * Henry Ford, founder of the Ford Motor Company * Ford F ...
, and Chrysler) controlling 85% of the market. The ongoing ban on newer vehicles considered safe in countries with lower vehicle-related death rates has created a perception that an effect of NHTSA's regulatory activity is to protect the U.S. market for a modified oligopoly consisting of the three U.S.-based automakers and the American operations of foreign-brand producers. It has been suggested that the impetus for NHTSA's seeming preoccupation with market control rather than vehicular safety performance is a result of overt market protections such as
tariffs A tariff is a tax imposed by the government of a country or by a supranational union on imports or exports of goods. Besides being a source of revenue for the government, import duties can also be a form of regulation of foreign trade and po ...
and local-content laws having become politically unpopular due to the increasing popularity of free trade, thus driving the industry to adopt less visible forms of trade restrictions in the form of technical regulations different from those outside the United States. An example of the market-control effects of NHTSA's regulatory protocol is found in the agency's 1974 banning of the
Citroën SM The Citroën SM is a high-performance coupé produced by the French manufacturer Citroën from 1970 to 1975. The SM placed third in the 1971 European Car of the Year contest, trailing its stablemate Citroën GS, and won the 1972 ''Motor Trend' ...
automobile, which contemporary journalists described as one of the safest vehicles available at the time. NHTSA disapproved the SM's designs featuring steerable
headlamp A headlamp is a lamp attached to the front of a vehicle to illuminate the road ahead. Headlamps are also often called headlights, but in the most precise usage, ''headlamp'' is the term for the device itself and ''headlight'' is the term for ...
s that were not of the
sealed beam A parabolic aluminized reflector lamp (PAR lamp or simply PAR) is a type of electric lamp that is widely used in commercial, residential, and transportation illumination. It produces a highly directional beam. Usage includes theatrical lighti ...
design that was then mandatory in the U.S. as well as its height adjustable suspension, which made compliance with the 1973 bumper requirements cost-prohibitive. The initial bumper regulations were intended to prevent functional damage to a vehicle's safety-related components such as lights and fuel system components when subjected to barrier crash tests at at the front and at the rear. However, these regulations at low-speed collisions did not enhance occupant safety. Vehicle manufacturers have acknowledged the functional equivalence of the UN and U.S. regulations, encouraged developing countries to recognize and accept both, and advocated for equal recognition of both systems in developed countries. However, some structural features of the U.S. legal system are incompatible with some aspects of the UN regulatory system. Studies have concluded that commonizing regulations between the US and the rest of the world (which uses U.N. Regulations) would save significant money, likely without affecting safety.


Development of Standardized Field Sobriety Testing (SFST)

NHTSA created a Standardized Field Sobriety Testing ( SFST) training curriculum to prepare
police The police are a constituted body of persons empowered by a state, with the aim to enforce the law, to ensure the safety, health and possessions of citizens, and to prevent crime and civil disorder. Their lawful powers include arrest and th ...
officers and other qualified persons to conduct the SFST's for use in DWI investigations. This training was developed in combination with the International Association of Chiefs of Police (IACP) and has experienced remarkable success since its inception in the early 1980s.


Data-Driven Approaches to Crime and Traffic Safety (DDACTS)

NHTSA, along with the Bureau of Justice Assistance and the National Institute of Justice (both part of the
Department of Justice A justice ministry, ministry of justice, or department of justice is a ministry or other government agency in charge of the administration of justice. The ministry or department is often headed by a minister of justice (minister for justice in a ...
) has a long history of actively promoting the use of traffic stops by local police to combat crime and search for drugs. This approach is controversial and has, in the past, been accused of encouraging
racial profiling Racial profiling or ethnic profiling is the act of suspecting, targeting or discriminating against a person on the basis of their ethnicity, religion or nationality, rather than on individual suspicion or available evidence. Racial profiling involv ...
of motorists.


Cost and cost-benefit

NHTSA uses cost–benefit analysis for every safety device, system, or design feature mandated for installation on vehicles. No device, system, or design feature may be mandated unless it costs no more than a specified amount of money per life saved, or will save more money (in property damage, health care, etc.) than it costs. Requirements are balanced through estimated costs and estimated benefits. For example, FMVSS #208 effectively mandates the installation of frontal airbags in all new vehicles in the United States, for it is written such that no other technology can meet the stipulated requirements. It has been argued that even using conservative cost figures and optimistic benefit figures, airbags' cost–benefit ratio so extreme that it may fall outside of the cost–benefit requirements for mandatory safety devices. Cost–benefit requirements have been used as the basis for lighting-related regulation in the U.S; for example, while many countries in the world since at least the early 1970s have required rear
turn signal The lighting system of a motor vehicle consists of lighting and signalling devices mounted to or integrated into the front, rear, sides, and in some cases the top of a motor vehicle. They illuminate the road ahead for the driver and increase th ...
s to emit amber light so they might be distinguished from adjacent red brake lamps, U.S. regulations permit rear turn signals to emit either amber or red light. This has historically been justified on grounds of lower manufacturing cost and greater automaker styling freedom in the context of no demonstrated safety benefit to amber over red. More recent NHTSA-sponsored research has demonstrated that amber rear turn signals provide significantly better crash avoidance than red ones, and NHTSA has found there is no significant cost penalty to amber signals versus red ones, yet the agency has not moved to require amber—instead proposing in 2015 to award extra NCAP points to passenger vehicles with amber rear turn signals.New Car Assessment Program Request For Comment, US Government Docket NHTSA-2015-0119, section D(2)(c)
/ref> As of September 2022, however, the agency has not put this proposal into effect.


Fuel economy


CAFE Regulations

NHTSA also administers the Corporate Average Fuel Economy (CAFE), which is intended to incentivize the production of fuel-efficient vehicles by dint of fuel economy requirements measured against the sales-weighted harmonic average of each manufacturer's range of vehicles. Many governments outside North America promote fuel economy by heavily taxing motor fuel and/or by including a vehicle's weight, engine size, or fuel economy in calculating vehicle registration taxes (
road tax Road tax, known by various names around the world, is a tax which has to be paid on, or included with, a motorised vehicle to use it on a public road. National implementations Australia All states and territories require an annual vehicle registra ...
).


Performance

Information about manufacturers' CAFE performance and compliance beginning with the 2011 model year can be found on the NHTSA website, thei
Public Information Center
for both the light-duty and heavy-duty vehicle program. As of 2022, for model years 2005–2010 information can be found on the NHTSA website a
Summary of Fuel Economy Performance, 15 December 2014


Aerodynamics brings change to NHTSA

Automakers faced an inherent conflict between NHTSA's stringent headlight legislation, which mandated unaerodynamic sealed-beam headlights, and the Corporate Average Fuel Economy standard, which effectively mandated that automakers develop ways to improve the ability of the car to cleave the air. As a result, in the early 1980s, automakers lobbied for a modification of the mandate for fixed shape sealed-beam
headlamp A headlamp is a lamp attached to the front of a vehicle to illuminate the road ahead. Headlamps are also often called headlights, but in the most precise usage, ''headlamp'' is the term for the device itself and ''headlight'' is the term for ...
s. NHTSA adopted Ford's proposal for low-cost aerodynamic headlamps with polycarbonate lenses and transverse-filament bulbs. The minimum allowed performance and materials durability requirements of this new headlamp system are lower than those of the previous
sealed beam A parabolic aluminized reflector lamp (PAR lamp or simply PAR) is a type of electric lamp that is widely used in commercial, residential, and transportation illumination. It produces a highly directional beam. Usage includes theatrical lighti ...
system. For the 1984
model year The model year (sometimes abbreviated "MY") is a method of describing the version of a product which has been produced over multiple years. The model year may or may not be the same as the calendar year in which the product was manufactured. ...
, Ford introduced the
Lincoln Mark VII Mark 7 is the seventh chapter of the Gospel of Mark in the New Testament of the Christian Bible. This chapter explores Jesus' relationships with both fellow Jews and Gentiles. Jesus speaks with the Pharisees and scribes, and then with his discipl ...
, the first car since 1939 to be sold in the U.S. market with architectural headlamps as part of its aerodynamic design. These composite headlamps, when new to the American market, were commonly but improperly referred to as "Euro" headlamps, since aerodynamic headlamps were already common in
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirel ...
. Though conceptually similar to European headlamps with nonstandardized shape and replaceable-bulb construction, these headlamps conform to the SAE headlamp design standards contained in the U.S.
Federal Motor Vehicle Safety Standard 108 Federal Motor Vehicle Safety Standard 108 (FMVSS 108) regulates all automotive lighting, signalling and reflective devices in the United States. Like all other Federal Motor Vehicle Safety Standards, FMVSS 108 is administered by the United States ...
, and not to the international safety standards used worldwide outside North America.


NCAP

United States has been the first country/region to have a NCAP program before being copied by other regional, European, American, Asiatic, Oceanic or global NCAP programs. This makes ''New Car Assessment Program'' can be colloquial and design either US NCAP or generic NCAP. In 1979, NHTSA created the/a New Car Assessment Program (NCAP) in response to Title II of the Motor Vehicle Information and Cost Savings Act of 1972, to encourage manufacturers to build safer vehicles and consumers to buy them. Since that time, the agency has improved the program by adding rating programs, facilitating access to test results, and revising the format of the information to make it easier for consumers to understand. NHTSA asserts the program has influenced manufacturers to build vehicles that consistently achieve high ratings. The first standardized 35 mph front crash test was on May 21, 1979, and the first results were released on October 15 that year. The agency established a frontal impact test protocol based on Federal Motor Vehicle Safety Standard 208 ("Occupant Crash Protection"), except that the frontal 4 NCAP test is conducted at , rather than as required by FMVSS No. 208. To improve the dissemination of NCAP ratings, and as a result of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA–LU), the agency has issued a Final Rule requiring manufacturers to place NCAP star ratings on the
Monroney sticker The Monroney sticker or window sticker is a label required in the United States to be displayed in all new automobiles and includes the listing of certain official information about the car. The window sticker was named after Almer Stillwell ...
(automobile price sticker). The rule had a September 1, 2007 compliance date.


Administration

The agency has an annual budget of $1.09 billion (FY2020). The agency classifies most of its spending under the ''driver safety'' heading, with a minority spent on ''vehicle safety,'' and a smaller amount on energy security matters of which it is in charge, i.e., vehicular fuel economy.


Past administrators


See also

* Automobile safety rating *
Crash test A crash test is a form of destructive testing usually performed in order to ensure safe design standards in crashworthiness and crash compatibility for various modes of transportation (see automobile safety) or related systems and comp ...
*
FMVSS 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 ...
* Grey-market vehicle * Insurance Institute for Highway Safety *
Intelligent Transportation Systems Institute The Intelligent Transportation Systems (ITS) Institute is a national University Transportation Center headquartered at the University of Minnesota. The ITS Institute researches activities to enhance the safety and mobility of road-based and transit- ...
* National Transportation Safety Board *
Road-traffic safety Road traffic safety refers to the methods and measures used to prevent road users from being killed or seriously injured. Typical road users include pedestrians, cyclists, Driving, motorists, vehicle passengers, horse riders, and passengers o ...
* Title 23 of the Code of Federal Regulations *
UNECE The United Nations Economic Commission for Europe (ECE or UNECE) is one of the five regional commissions under the jurisdiction of the United Nations Economic and Social Council. It was established in order to promote economic cooperation and ...
*
Vehicle inspection Vehicle inspection is a procedure mandated by national or subnational governments in many countries, in which a vehicle is inspected to ensure that it conforms to regulations governing safety, emissions, or both. Inspection can be required at va ...
* Work-related road safety in the United States


References


Further reading

*Kevin M. McDonald, "Shifting Out of Park: Moving Auto Safety from Recalls to Reason" (Lawyers & Judges Publishing, 2006). . * * *
The Century Council Foundation for Advancing Alcohol Responsibility (Responsibility.org), formerly known as the Century Council, is an American not-for-profit organization founded in 1991 and funded by a group of distillers that aims to fight to eliminate drunk driv ...
'
Report on Alcohol-Related Traffic Fatalities in the United States (2006)
* Peltzman, Sam. "The Effects of Automobile Safety Regulation." ''The Journal of Political Economy'' 83, no. 4 (August 1975): 677–725. *


External links

*
49 CFR Chapter V
(National Highway Traffic Safety Administration)
National Highway Traffic Safety Administration
in the Federal Register
safercar.gov
for official ratings, tips, and recalls


UNECE vehicle safety regulations
* *







{{authority control 1970 establishments in the United States Road safety organizations Automotive safety New Car Assessment Programs United States Department of Transportation agencies Government agencies established in 1970 Highway Traffic Safety