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Lockout/Tagout Fact Sheet


Employees who service or maintain machines or equipment may be at risk due to the sudden start-up or release of stored energy from this equipment. The Occupational Health and Safety Administration (OSHA) has issued a lockout/tagout standard known as the Control of Hazardous Energy Sources Standard, to protect workers. The basis of this standard is a systemized approach to servicing or maintaining certain equipment. It includes development of a written program, detailing procedures for disabling energy sources, obtaining lockout/tagout devices and training of workers.

Applicable University Policy

VI-14.00(A) - UMD Policy on Control of Hazardous Energy During Maintenance of Equipment. (Lockout/Tagout Plan)

Applicable Regulations

29 CFR 1910.147 -The Control of Hazardous Energy (Lockout/Tagout)

Summary of Requirements

  • The Lockout/Tagout Plan is the written policy and guidelines for this standard. All affected employees must follow the procedures in this plan.
  • The Department of Environmental Safety, Sustainability and Risk (ESSR) provides training for the implementation of this program to all campus employees authorized to do maintenance work on hazardous machinery.
  • Each authorized individual will be issued his/her own padlock and key. Some individuals who work on equipment with multiple sources of energy may require several locks. Multiple lock devices are used when more than one worker is involved in a lockout procedure.
  • The following procedures will be followed when working in lockout/tagout situations:
    1. Determine the types of stored energy of the equipment to be serviced;
    2. Shut down machine;
    3. Shutoff all energy supplies;
    4. Apply locks and tags;
    5. Release stored energy;
    6. Verify that machine cannot by turned on;
    7. Perform the service;
    8. Inspect the work area for hazards;
    9. Return machine to service.


The standard requires that each affected and authorized employee be trained in the purpose and function of the lockout/tagout program. Training includes recognition of hazardous energy sources and knowledge required for proper usage of energy controls.

ESSR provides this training for all campus groups. Supervisors of employees who perform maintenance should call (301) 405-3960 to arrange for training.

Retraining is required whenever there is a change in job assignments, machinery, or procedures.


All incidents (electrical shocks, etc.) involving electrical energy must be reported to ESSR immediately.


An annual inspection of the energy control procedure is required. The inspection includes a review of the procedures being used and employee knowledge of the program. Supervisors are responsible for evaluating energy control procedures in their unit.


Records of training are maintained by ESSR.

Written Program

A written program is required by the standard. It must establish the procedures to be followed for control of hazardous energy. The Lockout/Tagout Plan is the official university policy on compliance with this standard. Copies of the plan are available from ESSR and are posted on the ESSR web page.

University Resources

Department of Environmental Safety, Sustainability and Risk (301) 405-3960
ESSR Fax No.    (301) 314-9294
ESSR Website:

Written 5/98
Revised 3/04
Reviewed 4/05

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