{"data":{"id":"us/30-cfr-57.13011","jurisdiction":"us","citation":"30 CFR 57.13011","heading":"Air receiver tanks.","body":"Air receiver tanks shall be equipped with one or more automatic pressure-relief valves. The total relieving capacity of the relief valves shall prevent pressure from exceeding the maximum allowable working pressure in a receiver tank by not more than 10 percent. Air receiver tanks also shall be equipped with indicating pressure gages which accurately measure the pressure within the air receiver tanks.","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 L—Compressed Air and Boilers"],"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":"66ecd9467080905e010145fb79f6093c5b98e1acd0222328907c30c80bc35ec4","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.13010","next":"us/30-cfr-57.13012"},"notice":"GroundRules: Original legal text. Not legal advice."}