What Is Lockout/Tagout (LOTO)?

LOTO stands for Lockout/Tagout. This is a set of safety procedures placed in the workplace to control of hazardous energy and provide an effective protection for employees. Without the use of proper LOTO safety procedures, the serviced electrical equipment or machinery can unexpectedly start up or release hazardous energy.

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Lockout/Tagout (LOTO) Procedure by RESA Power

Trust RESA Power to develop your equipment specific Lockout Procedures that are easy to read and maintain.

What Is Hazardous Energy?

Energy sources including electrical, mechanical, hydraulic, pneumatic, chemical, thermal, or other sources in machines and equipment can be hazardous to workers. During the servicing and maintenance of machines and equipment, the unexpected startup or release of stored energy can result in serious injury or death to workers. Proper lockout/tagout (LOTO) practices and procedures safeguard workers from the release of hazardous energy.

When Do You Need Lockout/Tagout (LOTO) Procedure?

Ask yourself two simple questions: “Does your electrical equipment need to be offline to perform maintenance and repair? And may anyone be injured while doing maintenance and repair?” If your answer is YES to both questions, this is a best time to consider a LOTO procedure for your equipment.

Lockout/Tagout (LOTO) procedures are used when:

  • Servicing electrical equipment that does not require power to be ON to perform the Service.
  • Removing or bypassing a machine guard or other safety device where the possibility exists of being injured or caught in moving machinery.
  • Clearing jammed equipment.

RESA Power’s engineers follow the industry standards and OSHA requirements to identify what electrical assets require lockout and then develop a custom equipment specific LOTO procedure. Safety is our #1 priority!


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What is included in RESA Power Lockout/Tagout (LOTO) Services?

Being an industry leader for more than 20 years, RESA Power puts Safety above everything else. To provide our customers with protection from hazardous energy sources, RESA Power experienced engineers will develop your safe and reliable Lockout/Tagout (LOTO) procedure. Our procedure writing services include two stages: analysis of your current equipment and development of equipment-specific lockout procedure.

Lockout Equipment Inventory

Lockout Equipment Inventory

RESA Power’s engineers will start working on the development of your Lockout/Tagout (LOTO) procedure by assessing your current equipment inventory and identifying the specific equipment that requires lockout.

Lockout Procedure Development

Lockout Procedure Development

RESA Power’s engineers will carefully develop a safe and reliable Lockout/Tagout (LOTO) Procedure that relates to the proper shut-down with locking/tagging of equipment to protect workers from hazardous energy exposure during maintenance or repair services they are performing.

LOTO Procedure for Our Customers

LOTO Procedure for Our Customers

This safety procedure establishes the necessary requirements for the lockout of energy isolation devices whenever maintenance or servicing is done on machines or equipment. It shall be used to ensure that the machine or equipment is stopped, isolated from all potentially hazardous energy sources, and locked out before employees perform any servicing or maintenance where the unexpected energization or start-up of the machine or equipment or release of stored energy could cause injury.

What is the OSHA Standard for Control of Hazardous Energy Sources?

The OSHA standard for The Control of Hazardous Energy (Lockout/Tagout), Title 29 Code of Federal Regulations (CFR) Part 1910.147, addresses the practices and procedures necessary to disable machinery or equipment, thereby preventing the release of hazardous energy while employees perform servicing and maintenance activities.

The standard outlines measures for controlling hazardous energies—electrical, mechanical, hydraulic, pneumatic, chemical, thermal, and other energy sources.

Hazardous Energy Control

Why Are Lockout/Tagout Procedures important?

RESA Power requires our customers to perform all switching and grounding of their own facility equipment. All technicians are instructed to follow our policy, OSHA requirements and the facility we are always working at LOTO requirements.

LOTO procedures must be implemented at the workplace level and employees must be trained on how to follow the same set of LOTO procedures while come into direct contact with electrical equipment and machinery. Our safe and reliable Lockout/Tagout (LOTO) procedure is a critical aspect of the workplace safety and help to prevent accidents that might appear at the workplace, including but not limited to

  • Fires and explosions
  • Electrical accidents
  • Chemical exposure
  • Wounds and lacerations

We recommend that the ongoing trainings for LOTO procedures should be an essential part of your company’s safety program.


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The placement of a lockout device on an energy isolating device, in accordance with an established procedure, ensuring that the energy isolating device and the equipment being controlled cannot be operated until the lockout device is removed.

Lockout device

A device that utilizes a positive means such as a lock, either key or combination type, to hold an energy isolating device in the safe position and prevent the energizing of a machine or equipment. Included are blank flanges and bolted slip blinds.


The placement of a tagout device on an energy isolating device, in accordance with an established procedure, to indicate that the energy isolating device and the equipment being controlled may not be operated until the tagout device is removed.

Tagout device

A prominent warning device, such as a tag and a means of attachment, which can be securely fastened to an energy isolating device in accordance with an established procedure, to indicate that the energy isolating device and the equipment being controlled may not be operated until the tagout device is removed.

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