{"data":{"id":"us/30-cfr-75.1202-1","jurisdiction":"us","citation":"30 CFR 75.1202-1","heading":"-1 Temporary notations, revisions, and supplements.","body":"(a) Mine maps shall be revised and supplemented at intervals of not more than 6 months.\n(b) Temporary notations shall include:\n(1) The location of each working face of each working place;\n(2) Pillars mined or other such second mining;\n(3) Permanent ventilation controls constructed or removed, such as seals, overcasts, undercasts, regulators, and permanent stoppings, and the direction of air currents indicated;\n(4) Escapeways and refuge alternatives designated by means of symbols.","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 M—Maps"],"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":"3910aa35807d6bd18ea62d7a992639002d2534761e3f4beb0107cfac0d28aba3","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.1202","next":"us/30-cfr-75.1203"},"notice":"GroundRules: Original legal text. Not legal advice."}