The temporary staffing industry places millions of workers in client company facilities every year. When one of those workers suffers a serious injury, the dual-employer structure creates a thicket of workers' compensation and tort questions that must be sorted out before any strategy is viable. The analysis turns on a doctrine most plaintiff practitioners know by name but frequently apply incorrectly: the general-special employer framework.
General Employer vs. Special Employer: The Core Distinction
The staffing agency is almost always the general employer. It controls hiring, payroll, benefits, and formal employment documentation. The client company that directs the worker's day-to-day tasks is the special employer. Under the majority rule in the United States, a special employer who borrows a worker from a general employer for a specific purpose and exercises sufficient control over how the work is performed can acquire the same workers' compensation immunity that protects direct employers from tort liability.
That immunity is the central issue in most temp-worker injury cases. If the client company qualifies as a special employer, the injured worker's remedy may be limited to workers' compensation benefits regardless of how egregiously the client company's negligence contributed to the injury. The inquiry is fact-intensive and turns on five factors that most courts articulate in some variant:
- Whether the special employer had the right to direct and control the work
- Whether the special employer paid the wages (directly or through reimbursement to the agency)
- Whether the special employer furnished the tools, equipment, and workplace
- Whether the worker agreed to the special employment arrangement
- Whether the work being performed was the special employer's regular business
No single factor is determinative. Courts have found special employer status even when the staffing agency nominally controlled payroll, if the client directed every detail of the work and the worker's assignment was integrated into the client's core operations. They have declined to find it where the worker retained significant autonomy or the relationship was limited to a single specific task with minimal client oversight.
Which Policy Covers the Claim?
The general employer (staffing agency) must maintain workers' compensation coverage for all placed workers as a condition of operation in virtually every state. Many staffing agreements also require the client company to maintain its own coverage or to name the staffing agency's insurer as an additional named insured for workers placed at the client's facility.
Obtain copies of both the staffing agreement and both employers' comp policies at the outset of the case. The staffing agreement's indemnification provisions often determine how the two carriers will allocate the claim internally, which affects how aggressively each carrier defends the comp case and whether they will cooperate in the third-party tort track. Where both carriers are on the hook, joint-and-several allocation disputes can delay resolution of the comp matter while the injured worker waits for medical authorization.
Preserving the Third-Party Tort Claim
The special employer immunity doctrine does not eliminate all tort theories. Specific exceptions apply even in states with strong immunity rules:
- Serious and willful misconduct: Many states, including California under Labor Code section 4553, allow injured workers to collect an enhanced comp penalty and preserve tort rights where the employer's conduct constituted serious and willful misconduct beyond ordinary negligence.
- Product defect by the client company: If the client company manufactured, supplied, or exclusively controlled defective equipment that caused the injury, the workers' compensation bar does not extinguish the product-liability claim against the client in its capacity as a product seller or lessor.
- Co-employee liability: Some states allow tort claims against supervisors or co-workers whose intentional or grossly negligent acts caused the injury, independent of the employer immunity analysis.
- General contractor third-party liability: On construction projects, the general contractor may not qualify as a special employer under the specific project control facts, leaving a tort claim intact against the GC even if the immediate client-employer is immune.
Subrogation and the Third-Party Action
Where a third party outside the employment relationship caused or contributed to the injury, the workers' comp carrier has a subrogation interest in the tort recovery. In temp worker cases, this creates a practical complication: the comp carrier may be paying benefits from a policy covering the general employer (staffing agency), while the third-party tort defendant is a completely separate entity. The injured worker's attorney must manage the carrier's subrogation interest in the civil case, negotiate a reduction where the carrier's recovery would undermine the worker's net settlement, and ensure that the civil complaint and the comp claim are not structured in ways that create collateral-estoppel problems for each other.
California's Witt offset and the equivalent provisions in other states further complicate third-party cases where a special employer comp carrier and a separate liability insurer are both contributing to the recovery. An attorney handling these cases without a detailed comp-lien calculation model is almost certainly leaving money on the table or, worse, inadvertently settling the civil case in a way that creates a comp carrier repayment obligation that wipes out the net recovery.
Practical Strategy at Intake
When a temp worker calls after a serious on-site injury, gather the following on the first call: name of the staffing agency, name and address of the client company, whether the worker has filed a comp claim and with which insurer, and the name of any equipment or machinery involved in the injury. That information lets you run the general-special employer analysis and identify third-party defendants before the statute of limitations on the tort claim begins to run without the benefit of comp tolling.
Do not assume the staffing agency's comp carrier will cooperate on medical authorizations just because the worker was formally employed by the agency. Disputed special employer cases frequently result in carrier coverage disputes that leave workers without authorized medical treatment while the insurers litigate their allocation. Filing an Application for Adjudication of Claim immediately after the injury and requesting an expedited hearing on medical treatment keeps the pressure on carriers to resolve coverage questions promptly.
For further resources on comp third-party subrogation mechanics, see workers' compensation practice. Liens and recovery distribution issues are addressed at liens and settlement resources.