{"data":{"id":"us/30-cfr-75.385","jurisdiction":"us","citation":"30 CFR 75.385","heading":"Opening new mines.","body":"When new mines are opened, no more than 20 miners at a time shall be allowed in any mine until a connection has been made between the mine openings, and these connections shall be made as soon as possible.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","Subpart D—Ventilation"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"8480f5c0b93ad44487a4222d19bc06e324acde1b5be0c86131350aa6e4ca2c47","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.384","next":"us/30-cfr-75.386"},"notice":"GroundRules: Original legal text. Not legal advice."}