{"data":{"id":"us/30-cfr-56.12017","jurisdiction":"us","citation":"30 CFR 56.12017","heading":"Work on power circuits.","body":"Power circuits shall be deenergized before work is done on such circuits unless hot-line tools are used. Suitable warning signs shall be posted by the individuals who are to do the work. Switches shall be locked out or other measures taken which shall prevent the power circuits from being energized without the knowledge of the individuals working on them. Such locks, signs, or preventative devices shall be removed only by the person who installed them or by authorized personnel.","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 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","Subpart K—Electricity"],"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":"a4ad847566b7b89ed59f570624ede39f2e90907cf4df40347fe85edaf53e6930","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-56.12016","next":"us/30-cfr-56.12018"},"notice":"GroundRules: Original legal text. Not legal advice."}