Abstract
About half of the 94 million motor vehicles in use today are estimated to the deficient in critical aspects of safety performance. This condition is of concern to everyone-drivers, passengers, and pedestrians are all potential victims off poorly maintained vehicles. Furthermore, relatively few owners are able to judge the adequacy of corrective repairs. The major conclusion of this report is that vehicle deterioration is an important factor in the etiology of accidents and that the Government and responsibility for upgrading the safety qualities of all vehicles permitted on public thoroughfares.