The lockout/tagout (LOTO) procedure has been one of the critical elements of electrical safety training on construction sites for a decade.  Generally, it’s pretty simple: if you need to work on an energized circuit or piece of equipment, shut down the breaker, put a lock on it so no one can turn it back on, and place a tag on it with your information. OSHA is considering updating the standard now and is currently requesting information from interested parties.