{"data":{"id":"us/30-cfr-57.22312","jurisdiction":"us","citation":"30 CFR 57.22312","heading":"Distribution boxes (II-A and V-A mines).","body":"Distribution boxes containing short circuit protection for trailing cables of approved equipment shall be approved by MSHA under 30 CFR part 18.","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 T—Safety Standards for Methane in Metal and Nonmetal 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":"ee66d18673d467e2ea9e76e93ab9b1461b026da74bd15f3df5b18a07c999dbe8","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.22311","next":"us/30-cfr-57.22313"},"notice":"GroundRules: Original legal text. Not legal advice."}