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California — the second claim most workers never make

You cannot sue your employer.
You can sue whoever else caused it.

Work site with equipment from multiple contractors

Cal. Lab. Code section 3602 makes workers compensation the exclusive remedy against your employer. Section 3852 preserves your right to sue a third party whose negligence contributed to the injury. That distinction is worth a great deal, because workers compensation pays no pain and suffering, and a third-party civil claim does.

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The second claim

When a work injury supports a civil claim too

  • Exclusive remedy applies to your employer only — § 3602 — The bar covers your employer and, in most circumstances, co-employees. It does not extend to everyone present at a work site.
  • § 3852 preserves the civil action — An injured employee may bring an action against any person other than the employer whose negligence caused the injury, and may claim damages proportionate to the injury.
  • Pain and suffering is the difference — Workers compensation pays medical treatment, wage replacement and permanent disability. It does not pay non-economic damages. A third-party claim does.
  • Both claims run at the same time — The workers compensation claim provides benefits during the case. The civil claim proceeds separately, on the civil timeline.
  • The employer or carrier holds a lien — Where a third-party recovery is obtained, the employer or carrier is generally entitled to reimbursement for benefits paid. That amount is frequently negotiable.
  • Different deadline — Cal. CCP § 335.1 — The civil claim runs two years from the injury, separate from the one-year workers compensation deadline in Cal. Lab. Code § 5405. Two clocks, both running.
✆ Third Party Involved? Free Review

The question to ask after any work injury

Was anything or anyone not employed by my employer involved. A vehicle, a machine, a product, a contractor from another company, a property owner, a delivery driver. If yes, there may be a second claim and it is the one that pays for what you actually went through.

Preserve the physical evidence

In a defective product or equipment case the item itself is the case. Do not let it be repaired, discarded or returned to a vendor without photographs and, ideally, without notice to everyone involved that it must be preserved.

Two deadlines, two systems

One year for the workers compensation claim under § 5405, two years for the civil claim under Cal. CCP § 335.1. Filing one does not preserve the other, and workers routinely lose the civil claim while focused on the comp claim.

Third-party defendants

Who can be sued alongside a workers comp claim

Each is a party other than your employer whose negligence or defective product may have contributed to a work injury.

Another driver in a work-related collision
Equipment or machinery manufacturers
Defective tool or product manufacturers
Property owners where you were working
General contractors on a multi-employer site
Subcontractors from other companies
Staffing agency clients or vice versa
Delivery or freight companies
Maintenance contractors
Chemical or material suppliers
Vehicle manufacturers and part suppliers
Security or facilities contractors
How both claims run

The workers comp claim and the civil claim together

Immediately

File both tracks

The workers compensation claim provides benefits during the case. The civil claim is investigated on its own schedule.

Early

Preserve evidence

In equipment and product cases the physical item is the case. Preservation is time sensitive in a way the comp claim is not.

During

Benefits flow from comp

Medical treatment under § 4600 and temporary disability under § 4650 continue while the civil claim is pending.

Ongoing

The lien accrues

Benefits paid by the employer or carrier generally become a lien against any third-party recovery.

At resolution

Lien resolved

The reimbursement amount is frequently negotiable, and that negotiation materially affects what you keep.

Deadlines

Two clocks

§ 5405 gives one year for the comp claim. Cal. CCP § 335.1 gives two years for the civil claim. Neither preserves the other.

Who else was there

Third parties on a work site

The exclusive remedy bar covers your employer. Work sites routinely contain parties who are not your employer.

Multiple contractors working on one site
Multi-employer sites. Another company's worker causing an injury is a separate defendant.
Industrial machine with a damaged guard
Equipment and product manufacturers. Not your employer, and not covered by the bar.
Work vehicle involved in a roadway collision
Collisions during work. The most commonly missed third-party claim of all.

What the exclusive remedy rule actually covers

Cal. Lab. Code § 3602 provides that where the conditions of compensation are met, the right to recover compensation is generally the exclusive remedy against the employer for an injury.

The scope of that bar is specific. It covers the employer and, in most circumstances, co-employees acting within the course of employment. It does not cover the world.

There are recognized exceptions even as to the employer, including where the employer failed to secure workers compensation coverage under § 3706, and in certain narrow circumstances involving conduct outside the normal employment relationship.

For most injured workers the practical point is simpler: the bar is about your employer, and a work site frequently contains parties who are not your employer.

Why the second claim is worth so much more per dollar of injury

Workers compensation benefits are defined by statute: medical treatment reasonably required, a portion of lost wages, and a permanent disability rating. That is the system, and it is designed to be predictable rather than complete.

What it does not include is non-economic damages. No pain. No suffering. No loss of enjoyment of life. No compensation for a career you can no longer have in the way a civil jury might assess it.

A third-party civil claim under § 3852 includes all of it, because it is an ordinary negligence claim measured under Cal. Civ. Code § 3281.

That is why identifying a third party matters so much. The same injury can produce a modest workers compensation award and a substantially larger civil recovery, and workers who never ask the question receive only the first.

Where third parties show up

Vehicle collisions during work. Any driver injured by another motorist while working has a workers compensation claim and a civil claim. This is the most common third-party scenario and it is frequently missed.

Equipment and machinery. A machine that failed, a tool that was defectively designed, a piece of equipment without adequate guarding. The manufacturer is not your employer.

Multi-employer work sites. Construction and warehouse sites routinely have several companies operating simultaneously. A worker injured by another company's employee has a claim against that company.

Premises. Where you work at a location your employer does not own or control, the property owner may bear responsibility for a dangerous condition.

Products and chemicals. Exposure or injury from a defective or inadequately labeled product supplied by a vendor.

How the lien works, and why it matters to your net recovery

When an employer or carrier pays workers compensation benefits and the worker then recovers from a third party, the employer or carrier is generally entitled to reimbursement out of that recovery.

This is a legitimate right and it is not something to be surprised by at the end of a case. What varies is the amount actually paid, because lien resolution involves negotiation, allocation questions, and arguments about the employer's own comparative fault where relevant.

The practical consequence is that the headline civil recovery and the amount you keep can differ substantially, and the difference is determined by work done at the end of the case rather than at the beginning.

It is worth understanding this before a third-party case resolves, because it changes what an acceptable settlement number actually looks like.

Two deadlines, and the one people miss

The workers compensation claim runs on Cal. Lab. Code § 5405: generally one year from the date of injury.

The civil claim runs on Cal. Code Civ. Proc. § 335.1: two years from the date of injury.

These are separate systems and filing in one does not preserve the other. A worker who spends eighteen months focused on a contested workers compensation claim can find the civil claim expired without ever having considered it.

And if a public entity is involved — a city vehicle, a county facility, a dangerous roadway condition — Cal. Gov. Code § 911.2 imposes a six-month written claim deadline that is shorter than both.

How it works

What happens when you call about a work injury

The first question is whether anyone other than your employer was involved.

1

We review the facts free

We look at everything and everyone involved in the injury and identify whether a third-party claim exists alongside the comp claim.

2

Evidence preserved

In equipment and product cases the item is the case. Preservation happens immediately, not after the comp claim resolves.

3

Both claims pursued

Workers compensation for benefits during the case, and the civil claim for the damages workers compensation does not pay.

4

Liens negotiated at the end

Reducing the reimbursement out of your recovery is part of the work. Our fee comes from the recovery only.

Common questions

Third-party work injury claims in California — answers

Not your employer in most circumstances, because Cal. Lab. Code section 3602 makes workers compensation the exclusive remedy against them. But section 3852 preserves your right to bring a civil action against any person other than your employer whose negligence contributed to the injury. Work sites frequently contain parties who are not your employer: other drivers, equipment manufacturers, contractors from other companies, property owners and product suppliers.
Because workers compensation pays no non-economic damages. Benefits are limited to medical treatment reasonably required, a portion of lost wages, and a permanent disability rating. There is no compensation for pain, suffering or loss of enjoyment of life. A third-party civil claim is an ordinary negligence claim measured under Cal. Civ. Code section 3281 and includes all of it, which is why the same injury can produce a modest comp award and a substantially larger civil recovery.
Where an employer or carrier has paid workers compensation benefits and you then recover from a third party, they are generally entitled to reimbursement out of that recovery. This is a legitimate right rather than a surprise, but the amount actually paid varies considerably. Lien resolution involves negotiation, allocation questions and, where relevant, arguments about the employer's own comparative fault. It materially affects what you keep, and it is resolved at the end of the case.
Yes, and it is usually the right approach. The workers compensation claim provides medical treatment under Cal. Lab. Code section 4600 and temporary disability under section 4650 while the civil claim proceeds on its own timeline. They are separate systems with separate procedures, separate decision makers and separate deadlines, running in parallel rather than one after the other.
No, and this catches people. The workers compensation claim generally runs one year from the date of injury under Cal. Lab. Code section 5405. The civil third-party claim runs two years under Cal. Code Civ. Proc. section 335.1. Filing one does not preserve the other. If a public entity is involved, Cal. Gov. Code section 911.2 imposes a six-month written claim deadline that is shorter than both, and it is jurisdictional.

Hurt at work with someone else involved? There may be a second claim.

Free review of both tracks. No fee unless we win.

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Sources cited on this page — You cannot sue your employer

California Labor Code sections and state agencies referenced on this page. Verify any deadline or figure against the primary source.

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