{"data":{"id":"us/30-cfr-57.9306","jurisdiction":"us","citation":"30 CFR 57.9306","heading":"Warning devices for restricted clearances.","body":"Where restricted clearance creates a hazard to persons on mobile equipment, warning devices shall be installed in advance of the restricted area and the restricted area shall be conspicuously marked.","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 H—Loading, Hauling, and Dumping"],"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":"cb8532604f90ec8fe7e4339ee1775d9ccc42ece1a5d8741c906e1fa41f88a0aa","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.9305","next":"us/30-cfr-57.9307"},"notice":"GroundRules: Original legal text. Not legal advice."}