{"data":{"id":"us-md/md.-code-transportation-21-804","jurisdiction":"us-md","citation":"Md. Code, Transportation § 21–804","heading":"","body":"(a) Unless reduced speed is necessary for the safe operation of the vehicle or otherwise is in compliance with law, a person may not willfully drive a motor vehicle at such a slow speed as to impede the normal and reasonable movement of traffic.\n(b) (1) If, on the basis of an engineering and traffic investigation, the State Highway Administration or a local authority determines that slow speeds on any part of a highway in its jurisdiction impede the normal and reasonable movement of traffic, the State Highway Administration or the local authority may establish a minimum speed limit for that part of the highway.\n(2) Unless reduced speed is necessary for the safe operation of the vehicle or otherwise is in compliance with law, a person may not drive a vehicle below a minimum speed limit established under this subsection.\n(3) A minimum speed limit established under this subsection is effective when posted on appropriate signs giving notice of the limit.\n(c) A person may not drive a Class A (passenger) or Class M (multipurpose) vehicle on a highway if the maximum speed capability of the vehicle does not exceed the posted maximum speed limit for the highway by at least 5 miles per hour.","path":["Article - Transportation"],"source_url":"https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gtr\u0026section=21-804","current_through":"2026-01-01","vintage":"","retrieved_at":"2026-09-14T20:01:38Z","sha256":"88a2881c69a862b952d4a5e8985b7e7c72203d2b4cd6f35ce5ed6700a90cb41d","source_id":"us-md","stale":false,"prev":"us-md/md.-code-transportation-21-803.2","next":"us-md/md.-code-transportation-21-805"},"notice":"GroundRules: Original legal text. Not legal advice."}