In Lockout Tagout, which step addresses all secondary sources?

• A. Notify Employees
• B. Shut Down Equipment Properly
• C. Address all secondary sources
• D. Disconnect all primary energy sources

Answer: (C)

Lockout Tagout is about making sure the equipment stays completely energy-free while someone works on it, not just cutting off the main power. After you shut down the machine and isolate the primary energy source, you must address all secondary sources because they can still store or release energy that could move parts or re-energize the system. This step involves identifying any other energy forms tied to the equipment—such as stored electrical energy in capacitors, hydraulic or pneumatic pressure, spring energy, gravity, or residual chemical energy—and taking steps to control or dissipate them. By addressing these secondary sources, you prevent unexpected startup or movement during maintenance, which is the crucial safety safeguard.