{"data":{"id":"us/30-cfr-77.903","jurisdiction":"us","citation":"30 CFR 77.903","heading":"Disconnecting devices.","body":"Disconnecting devices shall be installed in circuits supplying power to portable or mobile equipment and shall provide visual evidence that the power is disconnected.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","Subpart J—Low- and Medium-Voltage Alternating Current Circuits"],"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":"a1607511e859bbd147963a4112b150e0bd318d5d494d14c48f7c022eb1d573a3","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-77.902-3","next":"us/30-cfr-77.904"},"notice":"GroundRules: Original legal text. Not legal advice."}