US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter III — FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 382 — CONTROLLED SUBSTANCES AND ALCOHOL USE AND TESTINGSubpart B — Prohibitions382.20949 C.F.R. § 382.209Use following an accident.Last amended: 2016Year: 2026Length: 32 wordsOfficial source Cite as 49 C.F.R. § 382.209 (2026)No driver required to take a post-accident alcohol test under § 382.303 shall use alcohol for eight hours following the accident, or until he/she undergoes a post-accident alcohol test, whichever occurs first.Cross-references to the CFR382.303Previous49 C.F.R. § 382.207Next49 C.F.R. § 382.211