Who Can Remove a Lockout/Tagout Device? OSHA Rules Explained
A lockout/tagout device is not an ordinary padlock or reminder tag: it helps prevent a machine from starting or releasing hazardous energy during service. Under OSHA’s general-industry standard, the employee who applied the device must normally remove it. A narrow exception allows the employer to arrange removal by someone else, but only through a documented procedure with specific safeguards. Knowing the rule helps employers, workers, and contractors avoid unsafe restarts and compliance problems.
The Basic OSHA Rule: The Person Who Applied the Device Removes It
OSHA’s Control of Hazardous Energy standard, 29 CFR 1910.147, states that each lockout or tagout device must be removed by the employee who applied it. This is the default rule for equipment covered by the standard. The employee who placed the lock or tag is responsible for removing it when the work is complete and it is safe to restore the equipment.
The rule applies to both lockout devices and tagout devices. A lockout device physically holds an energy-isolating device—such as a circuit breaker or valve—in a safe position. A tagout device is a prominent warning tag attached to an energy-isolating device. A tag warns against operation but does not provide the same physical restraint as a lock.
OSHA’s standard covers servicing and maintenance where unexpected startup, energization, or release of stored energy could injure an employee. It generally applies in general industry, subject to the standard’s scope, exceptions, and other applicable rules. Construction, maritime, agriculture, and certain other work may be governed by different or additional requirements.
Who Counts as the Employee Who Applied the Device?
The rule refers to the employee who applied the lockout or tagout device—not simply the worker with the highest job title or the person who owns the equipment. In a typical procedure, an authorized employee identifies the energy sources, isolates them, applies personal locks or tags, and verifies that the machine is de-energized before work begins.
OSHA defines an authorized employee as a person who locks out or tags out machines or equipment to perform servicing or maintenance. An affected employee is one whose job requires operating or using equipment that is being serviced, or working in an area where servicing is taking place. An affected employee does not automatically have authority to remove another worker’s device.
Employers must train employees in the energy-control program and the procedures relevant to their work. Training should make clear who applies devices, who may remove them, how group work is protected, and what happens when a person who applied a device is unavailable.
When Someone Else May Remove a Lockout/Tagout Device
OSHA allows an exception when the employee who applied the device is not available to remove it. The employer may have the device removed under its own procedure, but the procedure must be developed, documented, and included in the employer’s energy-control program. It is not a general permission for a supervisor or coworker to cut off a lock whenever production is delayed.
Under 29 CFR 1910.147(e)(3), the employer must ensure that the specific procedure provides for at least two safeguards:
- Verification that the employee who applied the device is not at the facility. The employer must take reasonable efforts to contact that employee to inform them that the lockout or tagout device has been removed.
- Notification before the employee resumes work at the facility. The employer must ensure the employee is informed that the device was removed before the employee resumes work.
These requirements are minimum safeguards. A strong written procedure identifies who may authorize removal, how the employee’s absence is verified, what contact attempts are required, how the equipment is inspected, how the removal is recorded, and how the worker is notified before returning to the job. The procedure should also specify how affected employees are told that the machine may be restored.
If the employee can be contacted and is still available to remove the device, the ordinary rule applies: that employee removes it. An employer should not treat convenience, schedule pressure, or a shift change alone as proof that the employee is unavailable.
Practical Steps Before an Employer-Directed Removal
OSHA does not prescribe one universal form or checklist for every workplace. Employers must establish procedures suited to their equipment and hazards. A careful removal process commonly includes the following steps:
- Stop and confirm the reason for removal. Identify the device, equipment, work order, and employee who applied it. Confirm that the situation meets the company’s written exception procedure.
- Verify the employee’s status. Make reasonable efforts to determine that the employee is not at the facility. Follow the employer’s stated contact process, which may include direct calls or messages through established channels.
- Check the work area and equipment. Confirm that servicing is complete or otherwise safely suspended, tools and materials are accounted for, guards are restored as required, and people are clear of danger. The precise checks depend on the equipment and energy-control procedure.
- Obtain required authorization. Have only the person or role named in the written procedure approve and carry out the removal. Keep a record of the reason, checks, contact attempts, authorization, and removal.
- Notify affected employees and control restart. Communicate that the lockout/tagout condition is ending and follow the normal process for safely re-energizing equipment.
- Inform the absent employee before work resumes. The employee who applied the device must be told it was removed before returning to work at the facility.
These steps are practical controls, not a substitute for the employer’s written energy-control procedure. A workplace may need additional steps for complex systems, multiple energy sources, remote locations, or tasks involving several crews.
Group Lockout and Multiple Workers
For group servicing, each authorized employee must receive protection equivalent to personal lockout or tagout. OSHA’s group-lockout provisions require a primary authorized employee to coordinate the operation and account for the exposure status of the other authorized employees. Common methods include a lockbox or group hasp, with each worker applying a personal lock before starting work.
In a group-lockout arrangement, a lead worker’s lock does not normally replace each worker’s personal protection. The specific procedure must explain how equipment isolation is controlled, how each employee applies and removes a personal device, and how protection is maintained during changes in the crew. A supervisor should not remove a worker’s personal lock merely because the group’s work appears finished.
If one worker leaves before the work is complete, the group procedure should prevent the equipment from being restarted while that worker remains exposed. Any employer-directed removal of that worker’s device still needs to meet OSHA’s unavailable-employee safeguards and the employer’s written procedure.
Shift Changes, Contractors, and Absent Employees
Shift changes require an orderly transfer of lockout/tagout protection so that equipment remains continuously controlled. OSHA’s standard requires specific procedures for shift or personnel changes to ensure continuity of lockout or tagout protection. A departing employee should not simply leave a device for the next crew to interpret. Employers should establish how incoming employees apply their devices before outgoing employees remove theirs.
Contractor work also requires coordination. When outside servicing personnel work at a host employer’s facility, the host and contractor must inform each other of their respective lockout or tagout procedures. The host employer must ensure its employees understand and comply with the restrictions and prohibitions of the contractor’s program. Contracts or site rules cannot replace safe coordination at the equipment.
When the employee who applied a device cannot be reached, the employer should follow the written exception procedure, document reasonable contact efforts, and ensure the required notification occurs before the employee resumes work. If the employer cannot meet those safeguards, removing the device may violate the standard and expose workers to serious risk.
Why Cutting Off a Lock Is Not a Substitute for a Procedure
Cutting a lock may seem like a quick fix, but it does not establish that the machine is safe to restart or that the person who applied the lock is clear of danger. The lock may protect work in progress, a worker inside a machine, or a hazard that is not visible from the control panel. Removing it without confirming the worker’s status can lead to unexpected startup, electric shock, crushing, burns, or other severe injuries.
OSHA’s rule does not say that only the original worker can ever remove a device. It does say that the original worker removes it by default, and that any employer-directed exception must follow the required procedure and safeguards. A blanket policy allowing supervisors to cut off locks without verifying absence, attempting contact, and notifying the worker is not an adequate substitute.
Common Questions About Removing Lockout/Tagout Devices
Can a supervisor remove an employee’s lock?
Not as a routine convenience. A supervisor may be permitted to remove a device only under the employer’s documented procedure for situations where the employee who applied it is unavailable. The procedure must include reasonable efforts to contact the employee and ensure the employee is informed of the removal before resuming work.
Can a coworker remove a lock if the employee has gone home?
Not automatically. The fact that an employee has left the work area or ended a shift does not, by itself, authorize a coworker to remove the lock. The employer must follow its written exception procedure and OSHA’s required safeguards. Shift-change procedures should normally preserve protection through a controlled handoff.
Can the employee remove the lock before the job is finished?
The employee who applied the device generally removes it, but removal must occur only when it is safe under the applicable energy-control procedure. Workers should not remove protection while they or others remain exposed to hazardous energy. If work is paused or transferred, the employer’s procedure should maintain protection throughout the change.
Does a tagout tag have the same removal rule?
Yes. OSHA’s removal requirement applies to a lockout or tagout device. Tagout systems also have additional requirements because a tag is a warning device and does not provide the physical restraint of a lock. Employers must follow the standard’s tagout requirements and any applicable equipment-specific rules.
OSHA Requirements and Reliable Sources
The primary federal reference is OSHA’s 29 CFR 1910.147, The Control of Hazardous Energy (Lockout/Tagout). The employee-removal rule appears in paragraph (e)(3). Training, group lockout, shift changes, and contractor coordination are addressed in other parts of the same standard.
OSHA provides additional materials on its Control of Hazardous Energy (Lockout/Tagout) topic page. Employers should consult the current regulation, relevant OSHA interpretations, and applicable state-plan requirements. OSHA-approved state plans may impose requirements that differ from or are more stringent than federal OSHA rules.
In brief: The employee who applied a lockout/tagout device normally removes it. Another person may remove it only under the employer’s documented exception procedure, after reasonable efforts to contact the employee and with notice to that employee before work resumes. A safe, written process protects workers from both hazardous energy and unsafe assumptions about who is clear of the equipment.