{"data":{"id":"us-ia/iowa-code-321.436","jurisdiction":"us-ia","citation":"Iowa Code § 321.436","heading":"Mufflers, prevention of noise.","body":"Every motor vehicle shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise and annoying smoke, and no person shall use a muffler cutout, bypass or similar device upon a motor vehicle on a highway.","path":["Title VIII - TRANSPORTATION (Ch. 306 - 330B)","Chapter 321 - MOTOR VEHICLES AND LAW OF THE ROAD"],"source_url":"https://www.legis.iowa.gov/docs/code/2026/321.436.pdf","current_through":"Iowa Code 2026 edition","vintage":"","retrieved_at":"2026-09-14T19:40:08Z","sha256":"eeef56ba9f5dda155d132c7514b4434ec9ef94960bc5fd1d7d2a57c46dfa81a2","source_id":"us-ia","stale":false,"prev":"us-ia/iowa-code-321.435","next":"us-ia/iowa-code-321.437"},"notice":"GroundRules: Original legal text. Not legal advice."}