{"data":{"id":"us/49-cfr-392.66","jurisdiction":"us","citation":"49 CFR 392.66","heading":"Carbon monoxide; use of commercial motor vehicle when detected.","body":"(a) No person shall dispatch or drive any commercial motor vehicle or permit any passengers thereon, when the following conditions are known to exist, until such conditions have been remedied or repaired:\n(1) Where an occupant has been affected by carbon monoxide;\n(2) Where carbon monoxide has been detected in the interior of the commercial motor vehicle;\n(3) When a mechanical condition of the commercial motor vehicle is discovered which would be likely to produce a hazard to the occupants by reason of carbon monoxide.\n(b) [Reserved]","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 392—DRIVING OF COMMERCIAL MOTOR VEHICLES","Subpart G—Prohibited Practices"],"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":"a3f34b10ff428d7c47111956d14ac3a3b82a2d0c0f5b94ffa964c1d68acefa48","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-392.65","next":"us/49-cfr-392.67"},"notice":"GroundRules: Original legal text. Not legal advice."}