{"data":{"id":"us/30-cfr-57.8527","jurisdiction":"us","citation":"30 CFR 57.8527","heading":"Oxygen-deficiency testing.","body":"Flame safety lamps or other suitable devices shall be used to test for acute oxygen deficiency.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","Subpart G—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":"e0c38936cc2768e7cf511205dc6a81bc34876072ec5b3724be2878ef635a6ff1","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.8525","next":"us/30-cfr-57.8528"},"notice":"GroundRules: Original legal text. Not legal advice."}