{"data":{"id":"us/49-cfr-382.201","jurisdiction":"us","citation":"49 CFR 382.201","heading":"Alcohol concentration.","body":"No driver shall report for duty or remain on duty requiring the performance of safety-sensitive functions while having an alcohol concentration of 0.04 or greater. No employer having knowledge that a driver has an alcohol concentration of 0.04 or greater shall permit the driver to perform or continue to perform safety-sensitive functions.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER III—FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER B—FEDERAL MOTOR CARRIER SAFETY REGULATIONS","PART 382—CONTROLLED SUBSTANCES AND ALCOHOL USE AND TESTING","Subpart B—Prohibitions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"78c9cb93e5492452838c4288516c5a3de163a1f3fb66a2552f20b431cd0fd1f4","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-382.123","next":"us/49-cfr-382.205"},"notice":"GroundRules: Original legal text. Not legal advice."}