Light-Duty Assignments When FMLA, ADA and Workers' Compensation All Apply

An employee is injured at work. Workers' compensation applies. The injury is serious enough to qualify as a serious health condition, so FMLA applies. The resulting impairment substantially limits a major life activity, so the ADA applies. Three laws, one employee, and three different answers to the question of whether they must accept a light-duty assignment.

This is the scenario that produces most of the light-duty mistakes employers make, and the errors are rarely malicious. They come from applying one law's logic to all three.

What Each Law Actually Says About Light Duty

Workers' compensation

State workers' compensation systems generally encourage return to work, and most allow an employer to offer a modified or light-duty assignment within the employee's medical restrictions. If the employee refuses suitable work, wage replacement benefits can typically be reduced or suspended under state law.

This is the source of the intuition that light duty can be required. Within workers' compensation, that intuition is broadly right.

FMLA

Under the FMLA it is wrong. An employee on FMLA leave for a serious health condition cannot be required to accept a light-duty assignment in place of leave. The employer may offer it; the employee may decline it and remain on FMLA leave for the balance of their entitlement.

There is a consequential detail here. If the employee voluntarily accepts light duty, time spent working in that assignment does not count against the FMLA entitlement, because they are not on leave. Their job restoration right is generally preserved for the remainder of the 12-week period.

The ADA

The ADA approaches it from a third direction: not as return-to-work management or leave entitlement, but as reasonable accommodation. If the employee is a qualified individual with a disability, the employer must engage in the interactive process and provide reasonable accommodation absent undue hardship.

Light duty can be an accommodation. But the ADA generally does not require an employer to create a permanent light-duty position that does not exist, nor to eliminate an essential function of the job. It may require reassignment to a vacant position for which the employee is qualified.

The Conflict, Stated Plainly

Workers' compensation says you may penalize refusal of suitable light duty. The FMLA says you may not require it. Both can be true of the same offer to the same employee on the same day.

The resolution is that the employee may decline the light duty and stay on FMLA leave, while separately facing a potential consequence under state workers' compensation rules for declining suitable work. The employer does not get to use the workers' compensation consequence as a lever to defeat the FMLA right — and communications that read as though they are doing exactly that are what turn a routine claim into a retaliation allegation.

Where Employers Get Into Trouble

• Presenting light duty as mandatory to an employee who is also on FMLA leave.
• Counting light-duty time against FMLA entitlement when the employee is working rather than on leave.
• Stopping at the workers' compensation analysis and never running the ADA interactive process at all.
• Treating a fixed light-duty period as the whole obligation — a policy capping light duty at, say, 90 days may satisfy workers' compensation practice while leaving an unaddressed ADA accommodation question at day 91.
• Offering light duty only to occupationally injured employees. If light duty is available to workers' compensation claimants but categorically refused to employees with non-occupational disabilities, that disparity is itself an ADA exposure.

That last point is the one most likely to be missed, because it feels natural to run light duty as a workers' compensation program. The ADA does not care where the injury happened.

A Workable Sequence

1. Identify every law in play at the outset — occupational injury, serious health condition, and disability are three separate determinations, not one.
2. Give the FMLA notices and designate leave properly, regardless of the workers' compensation claim.
3. Get clear medical restrictions, expressed as functional limitations rather than diagnoses.
4. Offer light duty in writing, describing the tasks, hours and duration, and stating plainly that the employee may decline and remain on FMLA leave.
5. Run the interactive process under the ADA in parallel, and document it separately.
6. Revisit at the end of FMLA entitlement, when the ADA analysis often becomes the operative one — additional leave may itself be a reasonable accommodation.

Documentation That Survives Scrutiny

Keep the restriction documents, the written offer, the employee's response, the interactive process notes, and a record of what was considered and rejected and why. Three laws mean three potential claims from one set of facts, and each will be assessed against what the file shows rather than what anyone remembers.

Writing the Light-Duty Offer

A written offer removes most later disputes. It should describe the specific tasks, the hours, the expected duration, the pay, and how the assignment fits the employee's documented restrictions.

Critically, where FMLA is in play, it should state plainly that the employee may decline and remain on FMLA leave. An offer that reads as an instruction is the version that produces an interference claim.

Reviewing the Assignment

Medical restrictions change, and a light-duty assignment appropriate in week two may be unnecessary in week eight or insufficient if the condition worsens.

Schedule review points rather than waiting for the employee or the treating provider to raise it. A file showing periodic reassessment demonstrates good faith in a way a static arrangement does not.

Frequently Asked Questions

Can we end light duty after a fixed period?

You can run a time-limited program, but the ADA obligation does not end because your policy does. Reassess accommodation at the cut-off.

Does light duty have to be the employee's own job?

No. It is typically modified duties or an alternative assignment within restrictions.

What if the employee refuses and exhausts FMLA?

The ADA analysis continues, including whether further leave or reassignment is a reasonable accommodation. Termination at FMLA exhaustion, without that analysis, is a well-worn route to liability.

Related Training

Because these three laws intersect constantly, they are best learned together — see the Integrating FMLA, ADA, COBRA and Workers' Compensation certification program. For the workers' compensation side specifically, see How Workers' Compensation Works and the Certified Professional in Disability Management (CPDM).