Failure to properly de-energize equipment results in over 120 fatalities and 50,000 injuries annually according to OSHA. The document discusses energy sources that can be present, affected vs authorized employees, lockout/tagout procedures and safety, typical lockout/tagout procedures, prohibited actions, lockout/tagout devices, locks, and requirements for contractors and vendors. A proper lockout/tagout procedure is critical for safely servicing, maintaining or repairing equipment.