SAFETY FAILURES / 02Safety failures

Lockout/Tagout Failure Injury Lawyer

  • Updated November 10, 2026
Red isolation valve handles on a grey pipe manifold inside an industrial plant utility room.
Immediate answer

When a machine starts during servicing: what 29 C.F.R. § 1910.147 requires, who besides the employer may be responsible, and which lockout records matter.

On this page
  1. Key Takeaways
  2. What the Law Required Before Anyone Touched That Machine
  3. How a Machine Starts While Someone Is Inside It
  4. Who May Be Responsible When a Lockout Procedure Fails
  5. The Records That Show What Happened
  6. Injuries a Lockout/Tagout Failure Can Cause and What Damages the Law May Allow
  7. Why State Law Shapes Every Lockout/Tagout Civil Claim
  8. Questions Worth Asking Before Moving Forward With a Claim
  9. Frequently asked questions
  10. Sources

If a machine started, moved or released stored energy while you were servicing, cleaning or clearing it, the law may allow more than a workers' compensation claim. A civil claim may be possible against a party other than your employer, such as an outside contractor, the machine's maker or a site operator. Whether one exists depends on the facts and the law of the state where it happened.

Most people searching for a lockout/tagout injury lawyer are not doing research. They are recovering from an injury that happened in a second, a crushed hand, an amputation or a burn, or they are a family trying to understand how a shift ended in a death. Often they are also dealing with medical bills, lost paychecks and a workers' compensation process they did not choose. Underneath all of that is one question: whether the machine should have been shut off and locked out, and who was supposed to make sure it was. This page explains how industrial accident cases of this kind are examined, from the federal standard to the people and companies whose role may matter.

Key Takeaways

The federal rule for this kind of work is 29 C.F.R. § 1910.147. It governs the control of hazardous energy during the servicing and maintenance of machines and equipment. Its common shorthand, LOTO, stands for lockout/tagout. That means isolating a machine from its energy source and securing that isolation with a lock, or with a tag where a lock cannot be used, so the machine cannot start while someone is working on it.

A few points shape almost every one of these cases.

  • Workers' compensation is the system that generally handles a worker's claim against their own employer. A separate civil claim, a lawsuit seeking damages, may exist against other parties whose work, equipment or premises were involved. The details of workers' compensation rules differ by state.
  • A lockout failure is often a failure between companies, not only inside one. When an outside crew services a machine at someone else's plant, the federal standard expects the two employers to share their procedures.
  • A violation of the LOTO standard does not by itself establish that anyone was at fault. A civil claim generally asks whether a party owed a duty, whether it breached that duty, and whether the breach caused the injury. Whether those elements are met depends on the facts.
  • Limitation periods, fault rules and damages rules differ from state to state, and the rules that apply depend on the state and on the facts.

For an injured worker, this means the first question is usually not whether the employer was careless. It is who else had a hand in the machine, the procedure or the work that day.

What the Law Required Before Anyone Touched That Machine

The lockout standard's scope, under 29 C.F.R. § 1910.147(a)(1), covers "the servicing and maintenance of machines and equipment in which the unexpected energization or start up of the machines or equipment, or release of stored energy could cause injury to employees." It sets what the regulation calls "minimum performance requirements" for controlling that energy.

Stored energy is the power that can remain in a machine after it is switched off: pressure in hydraulic lines, compressed air in pneumatic systems, a charge left in electrical components, a raised part that can fall under gravity, heat, and chemical energy in lines or vessels. A machine can look dead and still move.

If your injury happened in certain settings, this standard may not be the starting point at all. The standard does not cover construction and agriculture employment; employment covered by parts 1915, 1917 and 1918 of Title 29; installations under the exclusive control of electric utilities for power generation, transmission and distribution; exposure to electrical hazards from work on conductors or equipment in electric-utilization installations, which subpart S covers; and oil and gas well drilling and servicing. Workers in those settings may be governed by different rules, which changes how a case is examined.

Where the standard applies, three requirements usually matter most, because each one describes a duty someone either met or did not.

  • Under 29 C.F.R. § 1910.147(c)(1), the employer must establish an energy control program consisting of energy control procedures, employee training and periodic inspections. Its aim is that equipment is isolated from its energy source and rendered inoperative before servicing begins.
  • Under 29 C.F.R. § 1910.147(c)(4), energy control procedures must generally be developed, documented and used. The regulation sets out a narrow exception that applies only when all eight of its listed conditions exist.
  • Under 29 C.F.R. § 1910.147(f)(2), when outside servicing personnel do covered work, "the on-site employer and the outside employer shall inform each other of their respective lockout or tagout procedures."

For someone who was hurt, these requirements work as a map: they show which company was expected to write, train, inspect and communicate, and so where a breakdown may have occurred. Whether the standard applied to the work you were doing is a factual question, and a case can turn on it. One thing you might weigh is what the task actually was: servicing, cleaning or clearing a jam, as opposed to normal production work.

How a Machine Starts While Someone Is Inside It

These injuries usually follow a short, recognizable chain. A machine is stopped for servicing, cleaning or clearing. Something in the energy control process breaks down. Then the machine moves, cycles or releases energy while a person's body is in its path.

The energy involved can be electrical, hydraulic, pneumatic, gravitational, thermal or chemical. The breakdown usually takes one of a few forms.

  • No written procedure existed for that machine, or the procedure did not address all of its energy sources.
  • A procedure existed but was not followed on that shift.
  • Locks or tags were not applied, were applied to the wrong point, or were removed too early.
  • The main power was isolated, but stored energy, such as trapped pressure or a raised component, was not released or blocked.
  • An outside contractor came on site without being told the site's procedures, or the site was not told the contractor's. That is the exchange 29 C.F.R. § 1910.147(f)(2) describes.

The order of events matters because each step leaves a record or should have. The written lockout procedure shows what was required. Lock and tag logs show what was applied, and by whom; the standard requires lockout and tagout devices to indicate the identity of the employee applying them. Training records show who was instructed. Inspection records show whether the procedure was checked in practice.

For you, the point is that the way the failure happened shapes who may be responsible. An omitted procedure points in a different direction than a contractor who was never briefed, or a machine whose design made isolation hard. You may already have a sense of which step went wrong, or you may not; a conversation with our attorney can help connect what you remember to the records that should exist. Something you might weigh is who was physically present, and whose crew, lock or procedure each person was working under.

Who May Be Responsible When a Lockout Procedure Fails

Many families reasonably wonder why anyone other than the employer would be part of a case. The answer is that a lockout failure often involves several parties, and some of them are not the injured worker's employer. Potential defendants are identified by type, by the role each played.

  • The machine's manufacturer. Product liability is the area of law that holds a maker or seller responsible for a defective product. The theories usually considered are a design defect, a manufacturing defect, or a failure to warn, for example where energy isolation points or residual hazards were not adequately addressed. An accident does not prove a defect; that question depends on the facts.
  • An outside service or maintenance contractor. The question here is usually negligence, meaning a failure to use reasonable care, including in following lockout procedures or sharing them as 29 C.F.R. § 1910.147(f)(2) describes.
  • The site's operator, when it is not the injured worker's employer. Premises liability is the law of an owner's or operator's responsibility for conditions on its property. Questions of operational control, meaning who directed the work and controlled the machine, may also matter.
  • An equipment seller or lessor, which can be part of the product liability chain depending on the state's law.

The employer occupies a different position. As a general rule, claims against one's own employer go through workers' compensation rather than a lawsuit, though those rules and their exceptions differ by state. Outside parties are generally not covered by that arrangement.

Identifying the right parties is a factual and legal question, not a checklist anyone can complete alone. For a family, this is often the point where the questions start to feel concrete, and a conversation with our attorney can cover which roles the known facts point toward. If you worked in maintenance specifically, the site also has a page about maintenance workers.

The Records That Show What Happened

A lockout case is built largely from paper, and much of that paper is kept by companies rather than by the injured worker. Each record answers a different question about your injury.

  • The written lockout procedure for the specific machine, the document 29 C.F.R. § 1910.147(c)(4) contemplates. For you, it shows what the steps were supposed to be on the day you were hurt: shutdown, isolation, blocking, placing and removing devices, and testing whether isolation worked.
  • Lock and tag logs, showing what was applied, where, when and by whom.
  • Training records, part of the energy control program under 29 C.F.R. § 1910.147(c)(1), showing whether you and your coworkers were instructed, and on what.
  • Periodic inspection records. The standard requires inspections at least annually, performed by an authorized employee other than the ones using the procedure being inspected. They can show whether the procedure was checked in practice before your injury.
  • Communications between the on-site employer and any outside employer about their respective procedures, the exchange 29 C.F.R. § 1910.147(f)(2) describes.
  • OSHA inspection records, citations or investigation reports, along with internal incident and accident reports. An incident report records what someone wrote down; it does not by itself establish what caused an injury.
  • Maintenance logs for the machine.
  • Medical records documenting the injury and treatment.

Workers and families often also keep photographs, the names of coworkers who were present, and their own notes of what was said. OSHA's Worker Rights and Protections page states that workers have the right to "Report an injury or illness, and get copies of your medical records," to "Review records of work-related injuries and illnesses," and to "Request an OSHA inspection, and speak to the inspector." The same page lists the right to "Work on machines that are safe."

What this means is that the most important records may not be in your hands, and a conversation with our attorney can help sort out which ones exist and who holds them. One thing you might weigh is which records you already have, and which sit with an employer, a contractor or a site operator.

Injuries a Lockout/Tagout Failure Can Cause and What Damages the Law May Allow

The injuries in these cases come from a machine doing exactly what it was built to do, while someone was inside it. They can include crush injuries, amputations, degloving, electrocution, burns, fractures, spinal cord injuries, traumatic brain injury and death. This page gives no medical advice and describes these injuries only as categories.

A civil claim seeks damages, meaning money the law may allow for losses an injury caused. The categories commonly recognized include:

  • medical expenses, past and future;
  • lost wages and lost earning capacity, meaning the reduced ability to earn in the future;
  • pain and suffering;
  • disability and the loss of ordinary activities.

Wrongful death is a claim brought by certain family members, or by an estate, when a person dies because of another party's wrongful conduct. Who may bring it and what it may include are set by each state's law.

Which categories apply, how they are measured, and whether any limits exist differ by state and depend on the facts. Nothing about a case's result is assured. For someone living with a permanent injury, or a family after a loss, what is at stake is often the long horizon: future care, work that may not be possible again, and income a household relied on. Something you might weigh is how the medical records and work history document those losses over time, not only on the day of the accident.

Why State Law Shapes Every Lockout/Tagout Civil Claim

The federal lockout standard sets workplace safety requirements. A civil claim for an injury, however, is decided mostly under state law. This page does not set out any one state's deadlines or rules, because they differ, and no state's rule is the rule everywhere.

The dimensions that most often differ include:

  • Fault rules. If you are told you share some blame for what happened, the state's fault rule decides what that means. Comparative fault reduces the damages a person may recover by their own share of fault, and in some versions bars recovery above a certain share. Contributory fault is an older rule under which a person's own fault, even a small share, can bar recovery entirely. States use different versions.
  • Statutes of limitations. A statute of limitations is the deadline for filing a lawsuit. How long it is, when it starts to run, and what exceptions apply differ by state and by the kind of claim.
  • Damages rules, including whether certain categories are limited.
  • Wrongful death rules, including who may bring the claim and what it may include.
  • Workers' compensation rules, including how a workers' compensation claim and a third-party claim interact.

This is why the same facts can lead to different legal results depending on where the injury happened. Which state's law applies is not always obvious when the employer, the contractor and the machine's maker are based in different places.

For a worker or family, the practical stake is time and route: a deadline set by one state's law, and a fault rule that can change what the case looks like. One thing you might weigh is where the injury happened and where each company involved is located, and a conversation with our attorney can cover which state's rules may govern.

Questions Worth Asking Before Moving Forward With a Claim

Before any decision about a claim, a few threshold questions tend to frame everything else.

  • Was the employer the only party involved, or did an outside contractor, a site operator that was not the employer, or the machine's maker play a role?
  • Who controlled the machine and the work area that day?
  • Was there a written lockout procedure for that machine, and was it followed?
  • Had the outside crew and the site shared their procedures?
  • What records exist, and who holds them?

The answers decide which route is even available. This page is about industrial accident civil claims against parties other than the employer. A situation where the only avenue is a workers' compensation claim against the employer, with no outside party involved, is in a different legal posture, and a conversation can help clarify which posture applies.

A case evaluation is a conversation with our attorney about what happened. It can cover the legal theories that may fit, such as product liability, negligence or premises liability; which state's law may apply; which records exist and where they sit; and which types of parties the facts point toward. If you are at the point of sorting those questions out, you can request a case evaluation through this site.

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Frequently asked questions

What is lockout/tagout and why does it matter for an injury claim?

Lockout/tagout, or LOTO, is the process 29 C.F.R. § 1910.147 sets for isolating machines from hazardous energy before servicing or maintenance. In a claim, the standard works as a map of obligations: who had to write the procedure, train workers, inspect, and share procedures with an outside crew.

Can I sue someone other than my employer after a lockout/tagout injury?

A civil claim may be possible against an outside party, such as a contractor, the machine's maker, an equipment seller or a site operator that is not the employer. Claims against the employer generally go through workers' compensation. Whether a claim exists depends on who controlled the machine and the work, and on state law.

Does an OSHA violation prove that someone was at fault?

No. A violation of the lockout standard does not by itself establish civil liability. A claim also asks whether the party owed a duty to the injured worker and whether its conduct caused the injury. A citation records an agency's allegation or finding as stated; it does not decide the civil case.

What records matter most in a lockout/tagout injury case?

The core records are the written lockout procedure for that machine, lock and tag logs, training records, periodic inspection records, and communications between on-site and outside employers. Incident reports, OSHA records, maintenance logs and medical records fill in the rest. Many of these are held by companies, not by the worker.

Who can be held responsible for a lockout/tagout failure?

By type, the parties considered include the machine's manufacturer, an outside service or maintenance contractor, a site operator that is not the employer, and an equipment seller or lessor. Which of them, if any, may be responsible depends on what each controlled and did, and on the state's law.

Does the federal lockout/tagout standard apply to every workplace?

No. Under 29 C.F.R. § 1910.147(a)(1)(ii), its listed exclusions include construction and agriculture employment and oil and gas well drilling and servicing, among others. Work in excluded settings may fall under different rules, and that changes the starting point of the analysis.

How long do I have to file a lawsuit after a lockout/tagout injury?

That depends on the state. Each state sets its own statute of limitations, with its own rule on when the period starts and its own exceptions. No single deadline applies nationally, and this page states none.

What damages can a lockout/tagout injury claim include?

Categories the law may allow include past and future medical expenses, lost wages and earning capacity, pain and suffering, and disability. After a death, wrongful death damages may be available to the family members the state names. Which categories apply, and how they are measured, depends on state law and the facts. No result is assured.

What is the difference between a workers' compensation claim and a civil lawsuit after a LOTO injury?

Workers' compensation is the system that generally handles a worker's claim against their own employer, under rules that differ by state. A civil lawsuit against a third party, such as a contractor, manufacturer or site operator, is a separate claim with its own rules. Depending on the facts and the state, both may be in play.