Environmental Health and Safety

Effective Date: 11/03/00

Policy Statement 20: Lockout/Tagout Program

OSHA Requirement

OSHA regulation, 29 CFR 1910.147 requires that policy be established for the control of hazardous energy. A lockout/tagout program is a set of performance requirements covering the servicing and maintenance of machines and equipment in which the unexpected energization or startup of the machine could cause injury.


Employees must be trained regarding the protocols for de-energizing equipment, recognizing de-energized equipment and the safety significance of the lockout/tagout policy established by their supervisor .


Lockout/tagout procedures apply to maintenance and/or servicing of machines and equipment, and not to normal production operations unless safety guards are removed or bypassed or otherwise defeated. Procedures do not apply to cord and plug connected equipment under exclusive control of the operator or to certain hot tap operations.


Departments affected by the policy develop specific written procedures to be followed by employees engaged in the control of hazardous energy. Procedures need not be documented under certain circumstances. Contact Environmental Health and Safety Office for further details.

Periodic Inspection

Supervisors designate an authorized employee to perform an annual inspection of the energy control procedure. This inspector prepares a report of findings and submits it to the department head.

Special Consideration

Testing or positioning may be required for some equipment. Before removing lockout/tagout devices, clear the machine, remove employees, remove devices, energize, and proceed with testing. After testing, de-energize and reapply the lockout/tagout procedures.

Lockout/Tagout Devices

Lockout/tagout devices required for the program are provided by the departments participating in this program.

Additional Information

Additional information may be obtained through review of the ECU Hazardous Energy Control Program or by contacting Environmental Health and Safety Office.