{"data":{"id":"us-ca/lab-7964","jurisdiction":"us-ca","citation":"LAB § 7964","heading":"","body":"Whenever an access shaft is used as the normal means of entrance or exit to an underground mine or tunnel, it shall be constructed of fireproof material or fireproofed by chemical or other means.","path":["Labor Code - LAB","DIVISION 5. SAFETY IN EMPLOYMENT [6300. - 9254.]","PART 9. TUNNEL AND MINE SAFETY [7950. - 8004.]","CHAPTER 1. Tunnels and Mines [7950. - 7964.5.]"],"source_url":"https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zip","current_through":"2026-09-13","vintage":"","retrieved_at":"2026-09-14T05:56:33Z","sha256":"e5577abb66d263ceebd25a759f434d5d132d24cfeb22562399371aaa641c83b3","source_id":"us-ca","stale":false,"prev":"us-ca/lab-7963","next":"us-ca/lab-7964.5"},"notice":"GroundRules: Original legal text. Not legal advice."}