Which of the following is a critical element of lockout/tagout procedures?

Identifying all energy sources is a critical element of lockout/tagout procedures because it ensures that all potential energy hazards associated with the equipment are properly managed before maintenance or servicing begins. Lockout/tagout (LOTO) procedures are designed to prevent accidental machinery startup or the release of hazardous energy while work is being performed.

By identifying all energy sources—electric, hydraulic, pneumatic, mechanical, thermal, or chemical—workers can take appropriate measures to isolate those sources effectively. This identification process is essential for implementing LOTO protocols, as it helps to prevent injuries and ensure the safety of personnel involved in the maintenance activities. Effective identification and isolation of all energy sources are foundational to the success of LOTO procedures, making it a critical step in any safety protocol.