Scope, Application, and Purpose

Purpose

The primary purpose of OSHA 1910.147 is to prevent injuries and fatalities caused by the unexpected energization or startup of machines and equipment, or the release of stored energy.

Application

The standard applies to all general industry workplaces where employees are exposed to hazardous energy during service and maintenance activities.

Scope

OSHA 1910.147 covers the servicing and maintenance of machines and equipment where the unexpected energization, startup, or release of stored energy could cause injury to employees.

Exclusion

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Work on cord and plug-connected electric equipment is excluded from the Lockout/Tagout standard when the plug is under the exclusive control of the employee performing the work. It is a good practice however to use plug-cover lockout devices.