Summary

GAO reviewed the Department of Transportation, National Highway Traffic Safety Administration's (NHTSA) new rule on tire pressure monitoring system controls and displays. GAO found that (1) the rule establishes a new federal motor vehicle safety standard requiring installation of a tire pressure monitoring system capable of detecting when one or more of a vehicle's tires are significantly underinflated; and (2) with the exception of the effective date, NHTSA complied with applicable requirements in promulgating the rule.