{"data":{"id":"us-va/4vac25-40-3180","jurisdiction":"us-va","citation":"4VAC25-40-3180","heading":"Fan housings and air ducts","body":"Fan housings and air ducts connecting main fans to underground openings shall be fire resistant.","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/section3180/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:46:03Z","sha256":"2fa352ba11514ae38aa0c8c3ffb3d6528fdf6aea4b5ce3bcdae90ca4cf5e1139","source_id":"us-va-vac","stale":false,"prev":"us-va/4vac25-40-3170","next":"us-va/4vac25-40-3190"},"notice":"GroundRules: Original legal text. Not legal advice."}