{"data":{"id":"us-ia/iowa-code-321.254","jurisdiction":"us-ia","citation":"Iowa Code § 321.254","heading":"Local authorities restricted.","body":"No local authority shall place or maintain any traffic-control device upon any highway under the jurisdiction of the department except by the latter’s permission.","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/2026/321.254.pdf","current_through":"Iowa Code 2026 edition","vintage":"","retrieved_at":"2026-09-14T19:40:08Z","sha256":"2a6f9fc6ddf7809d4bf4c0c291c573ceb975fe1547f2375c455d353db992b6df","source_id":"us-ia","stale":false,"prev":"us-ia/iowa-code-321.253b","next":"us-ia/iowa-code-321.255"},"notice":"GroundRules: Original legal text. Not legal advice."}