This document outlines lockout-tagout procedures for controlling hazardous energy sources according to OSHA standard 1910.147. It defines types of hazardous energy including electrical, mechanical, chemical, thermal, hydraulic and pneumatic. The six step lockout-tagout procedure is described as: prepare for shutdown, shutdown equipment, isolate all energy sources, place locks and tags, release stored energy, and verify isolation of equipment. Only authorized employees who have been trained are allowed to perform lockout procedures.