{"data":{"id":"us-va/4vac25-40-3260","jurisdiction":"us-va","citation":"4VAC25-40-3260","heading":"Ventilation door operation","body":"Ventilation doors not operated mechanically shall be designed and installed so that they are self-closing and will remain closed regardless of the direction of the air movement.","path":["Title 4. Conservation And Natural Resources","Agency 25. Department of Energy","Chapter 40. Safety and Health Regulations for Mineral Mining","Part XV. Safety and Health Regulations—Underground Only","Article 3. Air Quality, Radiation and Physical Agents"],"source_url":"https://law.lis.virginia.gov/admincode/title4/agency25/chapter40/section3260/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:46:04Z","sha256":"8b7f7d8d05f18ec6dc5c16856829ace474d7274977ff7fb84a633e680b2ca600","source_id":"us-va-vac","stale":false,"prev":"us-va/4vac25-40-3250","next":"us-va/4vac25-40-3270"},"notice":"GroundRules: Original legal text. Not legal advice."}