710 Energy Control Program (Lockout/Tagout)

Devices

Lockout Devices

This ensures that the source of energy cannot be accidentally or unintentionally activated while maintenance or repair work is being performed. Examples of lockout devices include:

• Padlocks – Used to physically lock an energy-isolating device in the "off" position, preventing reactivation.
• Ball Valve Lockouts – Devices that lock the valve handle in the closed position, ensuring the flow of liquids or gases is shut off.
• Circuit Breaker Lockouts – Attachments that lock circuit breakers in the "off" position to prevent electrical current flow.
• Plug Lockouts – Enclose the plug of electrical equipment to prevent it from being plugged in.
• Cable Lockouts – Use a flexible cable to lock multiple energy-isolating devices simultaneously, like valves or disconnect switches.

Tagout Devices

A tagout device is a prominent warning tag and accompanying attachment mechanism that is used to indicate that an energy-isolating device, such as a switch or valve, should not be operated. It is used when lockout, the preferred method of physically locking out energy-isolating devices cannot be accomplished.

They serve as a visual warning and communicates that the equipment must not be activated until the tag is removed by an authorized person. The are easier to remove and, by themselves, provide employees with less protection than do lockout devices. Therefore, if lockout is possible, tagout must not be used to isolate energy sources. Examples of tagout devices include:

• Warning Tags – Attached to energy-isolating devices with clear warnings such as “Do Not Operate” to notify workers that equipment is under maintenance.
• Plastic Seals – Tamper-resistant tags that must be cut or broken to be removed, often used alongside a lockout.
• Self-Laminating Tags – Durable tags that allow additional information (like worker ID or maintenance date) to be written and sealed in protective laminate.

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