US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter VPart 564564.449 C.F.R. § 564.4Definitions.Last amended: 2016Year: 2026Length: 20 wordsOfficial source Cite as 49 C.F.R. § 564.4 (2026)All terms defined in the Act and the regulations and standards issued under its authority are used as defined therein.Previous49 C.F.R. § 564.3