{"data":{"id":"us/30-cfr-57.5038","jurisdiction":"us","citation":"30 CFR 57.5038","heading":"Annual exposure limits.","body":"No person shall be permitted to receive an exposure in excess of 4 WLM in any calendar year.","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 D—Air Quality, Radiation, Physical Agents, and Diesel Particulate Matter"],"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":"bd7f65ccc3891a0eef939c83cf2d64e8e884ca06179fa7e525375cebbc373fc3","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.5037","next":"us/30-cfr-57.5039"},"notice":"GroundRules: Original legal text. Not legal advice."}