Lockout/Tagout (LOTO) Poster

Lockout/Tagout (LOTO)

All energy sources, including Radio Frequency (RF), must be controlled so that employee exposure to hazards is minimized. 

As part of a company’s policy manual, there should be a program for controlling energy hazards that includes energy control procedures, employee training, and a timeline for periodic inspections.

Lockout or tagout shall be performed only by the authorized employees who are performing the service or maintenance. 

Energy control (LOTO) procedure

  • Identify equipment/power source to be LOTO
  • Steps for shutting down, isolating, blocking and securing machines or equipment to control hazardous energy
  • Steps for the placement, removal and transfer of lockout devices or tagout devices, and the responsibility for them
  • Requirements for testing machine/equipment to verify zero energy and determine the effectiveness of LOTO devices and other energy control measures

Training and Communication

Authorized employee

  • Recognition of hazardous energy sources
  • Type and magnitude of energy in workplace
  • Methods and means for energy isolation and control

Affected employee

  • Purpose and use of the energy control procedure
  • Recognize and identify energy hazards

All other employees

  • Procedures for energy control
  • Prohibition of restarting or reenergizing equipment that is locked or tagged out

LOTO Device Removal

•       LOTO shall only be removed from the energy isolating device by the employee who applied the device.

Exception: When authorized employee who applied the LOTO device is not available, device may be removed under the direction of the employer following the employer’s LOTO procedures.

Specific procedure shall include:

  • Verification by employer that authorized employee who applied device is not available.
  • Making all reasonable efforts to contact authorized employee to inform them that LOTO device has been removed.
  • Ensuring that authorized employee has this knowledge before they resume work.

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    Additional Resources:

    NATE Safety and Health Manual Online Resource Library, Chapter 23 Lockout/Tagout (LOTO) Procedure: 
    Member Link: 
    Nonmember Link:

    ANSI/ASSP A10.44, Control of Energy Sources (Lockout/ Tagout) for Construction & Demolition Operations 

    NFPA 70E, Standard for Electrical Safety in the Workplace