Mastering Hazardous Energy: The 5 Main Components of an OSHA-Compliant Lockout/Tagout (LOTO) Program
Introduction: Building an Effective Energy Control Program
Lockout/Tagout (LOTO) is one of the most important safeguards for protecting employees from the unexpected energization, startup, or release of stored energy during equipment servicing and maintenance.
Under OSHA 1910.147, employers must establish an effective Energy Control Program when employees may be exposed to hazardous energy. A strong program provides a structured approach for identifying and controlling hazardous energy before work begins.
The five main components of an effective Energy Control Program are:
- The Energy Control Policy
- LOTO Devices and Hardware
- Documented Energy Control Procedures
- Periodic Inspections
- Employee Training and Communication
Each component serves a specific purpose. Together, they provide the foundation for controlling hazardous energy and protecting employees during servicing and maintenance activities.
1. Energy Control Policy
What is it designed to accomplish?
The Energy Control Policy establishes the overall framework for how an organization controls hazardous energy. Its purpose is to define the company’s approach to Lockout/Tagout and establish the expectations employees must follow when servicing or maintaining equipment.
The policy serves as the administrative foundation of the Energy Control Program. It establishes the overall requirements for documented procedures, employee training, periodic inspections and guidance for specific situational scenarios.
2. LOTO Devices and Hardware
What is it designed to accomplish?
LOTO devices and hardware provide the physical means of preventing hazardous energy from reaching equipment while employees are performing servicing or maintenance.
The purpose of these devices is to physically isolate or restrain energy sources and communicate that equipment has been placed under Lockout/Tagout.
Under OSHA 1910.147(c)(5), employers must provide appropriate lockout and tagout devices. These devices must be used exclusively for controlling hazardous energy and should not be used for other purposes.
LOTO devices must be:
- Durable enough to withstand the environmental conditions in which they are used.
- Standardized within the facility by factors such as color, shape, or size.
- Substantial enough to prevent removal without excessive force or tools.
- Identifiable so that the authorized employee who applied the device can be identified.
The objective is to ensure that the LOTO hardware provides a reliable physical and visual indication that hazardous energy has been controlled.
3. Documented Energy Control Procedures
What is it designed to accomplish?
Documented Energy Control Procedures provide employees with clear instructions for safely shutting down, isolating, and verifying equipment before servicing begins.
The goal is to eliminate uncertainty. Employees should be able to identify the hazardous energy sources associated with a specific machine and understand the steps necessary to place that machine in a safe, zero-energy condition.
Under OSHA 1910.147(c)(4)(ii), energy control procedures must be clear and specific.
A procedure should address the key steps necessary to safely control the equipment, including:
- The purpose of the procedure
- Shutdown and isolation of the equipment
- Application, removal, and transfer of LOTO devices
- Verification that the equipment has been effectively isolated
4. Periodic Inspections
What is it designed to accomplish?
Periodic inspections are intended to verify that the Energy Control Program is being followed correctly and remains effective over time.
A LOTO program can change as equipment, processes, employees, and procedures change. Regular inspections provide an opportunity to identify deficiencies and correct them before they contribute to an incident.
Under OSHA 1910.147(c)(6), periodic inspections must be performed at least annually.
The two main components of this inspection are to perform an audit on all LOTO procedures and perform a review of all authorized employee responsibilities.
Inspection Documentation
The employer must certify that the periodic inspection has been performed. The certification identifies:
- The machine or equipment inspected
- The date of the inspection
- The employees included in the review
- The person performing the inspection
The purpose of the inspection is not simply to satisfy an annual requirement. It is an opportunity to evaluate whether the program works as intended in the workplace.
5. Employee Training and Communication
What is it designed to accomplish?
Employee training and communication ensure that everyone who may encounter Lockout/Tagout understands their role and the hazards associated with uncontrolled energy.
Employees must understand why energy is being controlled, what their responsibilities are, and what actions are prohibited while equipment is locked or tagged out.
OSHA recognizes different employee roles within the LOTO process.
Authorized Employees
Authorized employees are responsible for applying LOTO, dissipating stored energy, and performing activities such as verification, testing, or positioning.
Their training addresses recognition of hazardous energy sources, the magnitude of energy, and the methods used to isolate and control that energy.
Affected Employees
Affected employees operate machinery or work in areas where Lockout/Tagout is being performed.
They must understand the purpose and use of the energy control procedure and recognize that locked or tagged equipment must not be restarted.
Other Employees
Other employees may pass through or work in areas where LOTO is being performed.
They must understand the purpose of the procedure and the prohibition against attempting to restart or operate equipment that has been locked or tagged out.
Bringing the Five Components Together
The five components of an Energy Control Program are interconnected.
The Energy Control Policy establishes the overall framework. LOTO Devices and Hardware provide the physical means of controlling energy. Documented Energy Control Procedures explain how specific equipment is safely isolated. Periodic Inspections verify that the program continues to work effectively. Employee Training and Communication ensure that employees understand and follow their responsibilities.
Together, these five components support the fundamental purpose of Lockout/Tagout: preventing unexpected energization, startup, or release of hazardous energy while employees are exposed to those hazards during servicing and maintenance.
A successful LOTO program is not simply about having locks and tags available. It is about establishing a consistent system in which procedures, equipment, inspections, and employee actions work together to control hazardous energy.
If your organization is unsure whether its LOTO procedures meet OSHA’s intent — or if you’re relying on generic or grouped documentation — now is the time to take action. Quality Lockout, LLC provides machine-specific procedure development, program audits, and turnkey LOTO solutions designed to eliminate compliance gaps and protect your workforce.
To strengthen your LOTO program or schedule a consultation, connect with the Quality Lockout team and ensure your procedures are accurate, compliant, and built for real-world use. Reach us at Qualitylockout.com or call 1.800.343.0829.
About the Author
Jared Lowery has over 24 years of experience in the LOTO industry and is a subject matter expert at Quality Lockout, LLC, where he leads the development, implementation, and continuous improvement of Lockout/Tagout (LOTO) programs across diverse industrial environments. With extensive experience in hazardous energy control, regulatory compliance, and operational safety, Jared supports the team that specializes in helping organizations build machine-specific LOTO procedures that meet OSHA 1910.147 requirements and withstand real-world operational demands. His work focuses on reducing risk, improving program accuracy, and elevating safety performance through clear documentation, field-ready procedures, and practical compliance strategies.
If your organization is unsure whether its LOTO procedures meet OSHA’s intent — or if you’re relying on generic or grouped documentation — now is the time to take action.
Quality Lockout, LLC provides machine-specific procedure development, program audits, and turnkey LOTO solutions designed to eliminate compliance gaps and protect your workforce.
To strengthen your LOTO program or schedule a consultation, connect with the Quality Lockout team at Quality Lockout, LLC and ensure your procedures are accurate, compliant, and built for real-world use. Reach us at qualitylockout.com or call 1.800.343.0829.