US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter VPart 581581.149 C.F.R. § 581.1Scope.Last amended: 2016Year: 2026Length: 17 wordsOfficial source Cite as 49 C.F.R. § 581.1 (2026)This standard establishes requirements for the impact resistance of vehicles in low speed front and rear collisions.Next49 C.F.R. § 581.2