The Biggest Misconceptions About Lockout/Tagout — And Why They Could Put Your Facility at Risk
When most people hear the words Lockout/Tagout (LOTO), they immediately think of a production line, a large piece of manufacturing equipment, or a maintenance technician working inside a machine.
And while those are certainly common applications for LOTO, that mindset can create a dangerous misconception:
Lockout/Tagout isn’t just for manufacturing equipment.
Any equipment or system that can expose an employee to hazardous energy may require a means of controlling that energy before servicing, maintenance, cleaning, or other activities are performed.
Unfortunately, misconceptions about LOTO are common in facilities of all types. Those misunderstandings can result in incomplete programs, inadequate procedures, and employees being exposed to hazards that could have been prevented.
Let’s take a closer look at some of the most common misconceptions.
Misconception #1: “LOTO is only for manufacturing equipment.”
This is one of the biggest misconceptions we encounter. Lockout/Tagout applies to more than just the equipment that manufactures a product. The real question isn’t “Is this production equipment?” The better question is: “Can this equipment or system expose an employee to hazardous energy while it is being serviced, maintained, cleaned, adjusted, or repaired?”
If the answer is yes, hazardous energy needs to be evaluated and an appropriate energy-control procedure should be established.
Consider some of the equipment found throughout a typical facility:
- HVAC systems and air-handling equipment
- Shipping and receiving equipment
- Boilers and steam systems
- Compressors
- Pumps
- Conveyors
- Hydraulic and pneumatic systems
- Wastewater equipment
- Material-handling equipment
- Garage and maintenance equipment
- Compactors and balers
- Laboratory equipment
- Commercial kitchen equipment
- Facility utility systems
- Automated doors and gates
- Elevators and lifts
- Water and chemical systems
Some of these may never touch the actual product being manufactured, but they can still contain electrical, mechanical, hydraulic, pneumatic, thermal, chemical, gravitational, or other forms of hazardous energy.
Misconception #2: “Turning the machine off is the same as locking it out.”
Pressing an emergency stop button, turning off a control switch, shutting down software, or placing equipment in an “off” position does not necessarily isolate hazardous energy.
A proper energy-control procedure involves identifying the energy sources, shutting down the equipment, isolating those energy sources, applying locks and tags where required, and verifying that the equipment has been effectively isolated before work begins. Depending on the equipment, stored or residual energy may also need to be released, restrained, blocked, or otherwise controlled. That distinction is critical. “Off” does not necessarily mean “safe.”
Misconception #3: “A machine’s safety guards make LOTO unnecessary.”
Machine guards are an important part of protecting employees, but guards and energy isolation serve different purposes. A guard may prevent an employee from contacting a moving component during normal operation. However, maintenance, cleaning, adjustment, troubleshooting, or other tasks may require access to areas that are normally protected.
When employees must enter hazardous areas or perform work where unexpected energization or startup could cause injury, simply relying on a guard may not be sufficient.
The question should always be: What could happen if this equipment unexpectedly starts, moves, releases pressure, heats up, or otherwise releases energy while someone is working on it?
Misconception #4: “LOTO only applies to maintenance employees.”
Another common misunderstanding is that LOTO is strictly a maintenance issue.
While maintenance employees frequently perform tasks that require hazardous energy control, other employees may also encounter situations where energy control is necessary.
Depending on the work being performed, employees involved in operations, sanitation, engineering, facilities, contractors, and other functions may interact with equipment or systems where hazardous energy is present. That’s why an effective LOTO program needs to clearly define who is authorized, who is affected, and what responsibilities each employee has.
Training should reflect those responsibilities rather than treating LOTO as a one-size-fits-all topic.
Misconception #5: “We have a general LOTO procedure, so we’re covered.”
A facility-wide LOTO policy is important, but a general policy alone isn’t enough.
Employees need to understand how to safely isolate the specific equipment they are working on. That means equipment-specific procedures should identify the applicable energy sources and isolation points and provide clear instructions for achieving a zero-energy state.
A procedure that simply says “shut off electrical power and lock out the disconnect” may not adequately address a machine that also contains pneumatic pressure, hydraulic pressure, gravity hazards, stored mechanical energy, heat, or other sources.
Good LOTO procedures should reflect the actual equipment — not just a generic template.
Don’t Forget the Rest of the Facility
One of the most important steps a facility can take is to look beyond the production floor.
When conducting a LOTO assessment, walk through the entire facility and ask:
- What equipment is serviced or maintained?
- What equipment can unexpectedly start or move?
- Where is stored energy present?
- What systems contain pressure?
- What equipment has electrical disconnects?
- What equipment can create a gravity hazard?
- What systems contain steam, heat, chemicals, or other hazardous energy?
- Who performs maintenance or servicing?
- Are employees or contractors accessing equipment outside of production?
You may discover that some of the equipment receiving the least attention from a LOTO perspective presents significant hazards.
LOTO should be viewed as a facility-wide hazardous-energy control program — not simply a manufacturing-machine requirement.
Where Quality Lockout Can Help
Developing and maintaining an effective LOTO program can be a significant undertaking, especially for facilities with hundreds or thousands of pieces of equipment.
That’s where Quality Lockout can help.
Quality Lockout works with facilities to evaluate their hazardous-energy control needs and develop practical solutions designed around the equipment and employees who will use them.
Services can include:
- Custom LOTO procedure creation
- Facility LOTO assessments and audits
- Equipment identification and energy-source tagging
- On-site asset tagging
- Visual machine-specific procedures
- LOTO program reviews
- Employee training
- OSHA compliance consulting
- Confined-space services
- Ongoing support for maintaining a LOTO program
The approach is simple: identify the hazards, clearly document the energy-control process, and make the information accessible to the people responsible for performing the work.
Quality Lockout also understands that every facility is different. A food-processing facility may have very different hazardous-energy challenges than a plastics manufacturer, warehouse, school district, commercial facility, or other organization.
That’s why LOTO procedures shouldn’t simply be copied from one piece of equipment to another.
Our team is here to help facilities take that next step — from simply having a LOTO program to building a program that employees can understand, use, and trust.
About the Author
Katherine Doty serves as Head of Customer Support at Quality Lockout LLC, where she is dedicated to strengthening customer retention, brand loyalty, and long-term client success through exceptional technical support and service excellence. With a strong belief that safety and compliance are built on trust—not just troubleshooting—Katherine plays a critical role in ensuring clients receive reliable guidance, responsive support, and confidence in their Lockout/Tagout programs.
As a results-driven sales and customer relationship leader with more than seven years of experience in competitive markets, Katherine brings extensive expertise across the full customer lifecycle, including prospecting, relationship management, strategic partnerships, account growth, and client retention. Her background combines sales leadership with operational support, allowing her to bridge customer needs with practical solutions that drive both satisfaction and business growth.