NHTSA

What It Means

The National Highway Traffic Safety Administration (NHTSA) is an operating administration within the U.S. Department of Transportation, headquartered in Washington, D.C., with approximately 600 employees and an annual budget of roughly $1.1 billion as of fiscal year 2025. NHTSA was created by the National Traffic and Motor Vehicle Safety Act of 1966, the same year it was founded, following publication of Ralph Nader's "Unsafe at Any Speed" (1965) and congressional hearings that exposed widespread safety shortcomings in the U.S. auto industry. NHTSA has five core missions: it writes and enforces the Federal Motor Vehicle Safety Standards (FMVSS), the federal regulations that establish minimum crashworthiness and crash-avoidance performance for every vehicle sold in the U.S.; it investigates suspected safety defects through the Office of Defects Investigation (ODI), which has jurisdiction over approximately 300 million registered vehicles; it manages the nation's recall process, having overseen more than 25,000 recall campaigns since 1966; it operates the New Car Assessment Program (NCAP), which awards the familiar 1-to-5-star crash safety ratings; and it collects crash data through the Fatality Analysis Reporting System (FARS) and the Crash Report Sampling System. NHTSA also runs the Vehicle Safety Hotline (1-888-327-4236), the VIN-based recall lookup at nhtsa.gov, the Vehicle Performance Information System for heavy trucks, and the public APIs (Recalls API, Complaints API, and vPIC) that RecallCheck uses to populate every vehicle page. When NHTSA identifies a defect, it can negotiate a voluntary recall with the manufacturer, issue a mandatory recall order (rare; fewer than 5 mandatory orders are issued per decade on average), assess civil penalties up to $135.8 million per related violation series, and refer criminal cases to the Department of Justice under the TREAD Act.

NHTSA is one of the NHTSA or vehicle-safety concepts that recurs across RecallIndex. The definition above is the technical answer; below is how the concept connects to the NHTSA data that drives every vehicle page on the site.

In the RecallIndex Safety Score, this concept feeds one of the four factor weights — recall severity (40 percent), complaint frequency (30 percent), crash and fire reports (20 percent), or trend direction (10 percent). The methodology page on the site walks through every input in detail.

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