{"data":{"id":"us/30-cfr-72.500","jurisdiction":"us","citation":"30 CFR 72.500","heading":"Emission limits for permissible diesel-powered equipment.","body":"(a) [Reserved]\n(b) Each piece of permissible diesel-powered equipment operated in an underground area of an underground coal mine must emit no more than 2.5 grams per hour of diesel particulate matter.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 72—HEALTH STANDARDS FOR COAL MINES","Subpart D—Diesel Particulate Matter—Underground Areas of Underground Coal Mines"],"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":"46ae7bc42c71e5696cbd23697140725dfbc955bc27eaa6d5bc3b952b4dce13a4","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-72.100","next":"us/30-cfr-72.501"},"notice":"GroundRules: Original legal text. Not legal advice."}