{"data":{"id":"us-va/4vac25-40-910","jurisdiction":"us-va","citation":"4VAC25-40-910","heading":"Seismic testing and evaluation","body":"Seismic testing and evaluation to determine compliance with blasting regulations shall:\n\n1. Utilize acceptable instrumentation  that measures ground vibration,  air overpressure, and vibration frequency;\n\n2. Be conducted and analyzed by a qualified person; and\n\n3. Be conducted whenever directed by the division.","path":["Title 4. Conservation And Natural Resources","Agency 25. Department of Energy","Chapter 40. Safety and Health Regulations for Mineral Mining","Part VI. Explosives—Surface and Underground"],"source_url":"https://law.lis.virginia.gov/admincode/title4/agency25/chapter40/section910/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:45:55Z","sha256":"e24e42e593dfc8aeb865829ca5ab98d0ce1d2f73a3e3d796e6b4eb09664bd505","source_id":"us-va-vac","stale":false,"prev":"us-va/4vac25-40-895","next":"us-va/4vac25-40-920"},"notice":"GroundRules: Original legal text. Not legal advice."}