{"data":{"id":"us/30-cfr-75.1103-3","jurisdiction":"us","citation":"30 CFR 75.1103-3","heading":"-3 Automatic fire sensor and warning device systems; minimum requirements; general.","body":"Automatic fire sensor and warning device systems installed in belt haulageways of underground coal mines shall be assembled from components which meet the minimum requirements set forth in §§ 75.1103-4 through 75.1103-7 unless otherwise approved by the Secretary.","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 L—Fire Protection"],"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":"6226f11793f6677ee3b31b1c95664bc4d400c31d1965b5be41c03060676963a5","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.1103-2","next":"us/30-cfr-75.1103-4"},"notice":"GroundRules: Original legal text. Not legal advice."}