There are two major organizations which crash test automobiles and report the results to the public. One is the National Highway Traffic Safety Administration, (NHTSA), an agency of the United States government. The other is the Insurance Institute for Highway Safety, (IIHS), a non-profit organization funded by auto insurers.
Both work to reduce the number of motor vehicle crashes, and the rate of injuries and amount of property damage in the crashes that still occur. They each conduct basic research and produce ratings for each model of vehicle.
The Insurance Institute’s frontal crash testing differs from that of the NHTSA New Car Assessment Program in that its tests are offset from the center. This test exposes 40% of the front of the vehicle to an impact with a deformable barrier at approximately 40 mph (60 km/h). Because only 40% of the vehicle’s front must withstand the impact, some contend it shows the structural strength better than the NHTSA New Car Assessment Program full-width testing does. Many real-life frontal impacts are offset.