{"data":{"id":"us/30-cfr-75.386","jurisdiction":"us","citation":"30 CFR 75.386","heading":"Final mining of pillars.","body":"When only one mine opening is available due to final mining of pillars, no more than 20 miners at a time shall be allowed in the mine, and the distance between the mine opening and working face shall not exceed 500 feet.","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":"9464b418c08f70358beee21fa52128c51e9cfc1d8526c212031cd34f4caccc9e","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.385","next":"us/30-cfr-75.388"},"notice":"GroundRules: Original legal text. Not legal advice."}