PWFA Known Limitations and How to Recognize an Accommodation Request

What a PWFA Known Limitation Is

The statute defines the term in one sentence. A known limitation is a "physical or mental condition related to, affected by, or arising out of pregnancy, childbirth, or related medical conditions that the employee or the employee's representative has communicated to the employer, whether or not such condition meets the definition of disability" under the ADA (42 U.S.C. § 2000gg(4)).

That sentence has four working parts:

A known limitation does not have to be a disability. Swollen feet, nausea, fatigue, and a lifting restriction during an otherwise healthy pregnancy can each qualify even if none would likely meet the ADA's definition of disability.

"Related Medical Conditions": Settled Core, Unsettled Edges

The regulation's list of related medical conditions is long and expressly non-exhaustive. Examples include gestational diabetes, preeclampsia, hyperemesis gravidarum, sciatica, edema, postpartum depression and anxiety, miscarriage and stillbirth, and lactation-related conditions such as mastitis. The condition must be that of the specific employee, not a partner or family member.

It is useful to think about the examples in two tiers:

• Core. Current pregnancy, labor and childbirth, recovery from childbirth, pregnancy complications, pregnancy loss, and postpartum physical and mental health conditions sit squarely within the statutory phrase.
• Regulation-dependent. The regulation also reaches "potential or intended pregnancy," which it says can include infertility, fertility treatment, and contraception; it also lists menstruation and abortion. The portion of the rule requiring accommodation of elective abortions was vacated by a federal court in Louisiana v. EEOC in May 2025. The EEOC's regulatory agenda says the agency plans to propose revising its interpretation of "pregnancy, childbirth, or related medical conditions." Check the current status of the vacatur and any proposed rule before relying on these details.

For a request in the second tier, do not deny it on the theory that the rule might change, and do not assume the regulation settles it either. Check whether Title VII, the ADA, the FMLA, or state law independently applies, and involve counsel.

What Makes a Limitation "Known"

A limitation becomes known when it is communicated. The regulation explains who may speak, who may listen, and how.

• Who can communicate it. The employee, an applicant, or the employee's representative. The regulation lists a family member, friend, union representative, health care provider, or other representative. A spouse who calls after an emergency hospital admission, a union steward who raises a uniform issue, and a midwife's note can all count. Once aware, the employer will normally deal directly with the employee.
• Who can receive it. A supervisor, manager, someone who regularly directs the employee's tasks, HR staff, or another appropriate official—or the person designated under the employer's accommodation policy. An employee should not have to wait because they spoke to the "wrong" supervisor. A team lead who assigns daily work is likely a valid recipient.
• How it can be communicated. Orally, in writing, or by another effective means. It does not have to be in writing, use a particular format or form, or include specific words.

No Magic Words: What a Request Has to Contain

Under the regulation (29 C.F.R. § 1636.3(h)(2)), to request a reasonable accommodation, the employee or representative need only communicate two things:

1. That the employee has a limitation—a physical or mental condition related to pregnancy, childbirth, or a related medical condition; and
2. That the employee needs an adjustment or change at work because of it.

The employee does not have to mention the PWFA, say "reasonable accommodation," name a diagnosis, or use medical terms. A statement of need is enough; it does not have to be phrased as a formal request. In practice, the limitation and the requested change often arrive in the same sentence.

What Requests Sound Like

Several of these can look like something else: a schedule request like tardiness, prenatal appointments like an attendance pattern, or a spouse's text like a call-out. That is why recognition has to be trained, and why absences tied to a known limitation should be reviewed before attendance points are assessed. See No-Fault Attendance Policies and Protected Leave.

What Is Not Yet a Request

An employee who announces a pregnancy but mentions no difficulty and asks for nothing has not communicated a limitation or requested a change. The employer has no accommodation to provide yet and should not invent one. Reassigning or restricting a pregnant employee "for her own good" is a separate legal problem: the PWFA prohibits requiring an employee to accept an accommodation not arrived at through the interactive process, and Title VII prohibits adverse treatment because of pregnancy.

If a remark is ambiguous—"this job is getting harder," for example—a neutral follow-up is appropriate: "Is there something about the work we should look at changing?" That is the start of the interactive process, not an intrusion.

What Supervisors Should Do in the First Conversation

A short, fixed protocol works better than asking supervisors to make legal judgments:

1. Acknowledge. "Thanks for telling me. Let's figure out what will work."
2. Grant simple accommodations on the spot. Water, restroom breaks, sitting or standing, and breaks to eat and drink are the four accommodations the regulation says will be reasonable in virtually all cases for a pregnant employee. Give supervisors standing authority to say yes.
3. Do not ask for a diagnosis or a doctor's note. Whether documentation can be requested is an HR decision governed by the regulation's limits.
4. Do not say no or suggest leave. A supervisor should not deny a request or propose that the employee go home until they can perform the full job.
5. Write it down the same day. Record the date, what the employee said, what was granted, and what is pending.
6. Route it to HR immediately. Unnecessary delay can be a violation even if the accommodation is eventually provided.
7. Keep it confidential. Pregnancy and an accommodation request are medical information subject to ADA confidentiality rules. Coworkers covering a task need to know the schedule change, not the reason.

The companion PWFA Guide for Managers expands this into training content. For intake design, see Creating a Single Intake Process for Leave and How to Classify Leave Requests from Day One.

What HR Does Next

1. Confirm receipt, optionally in writing. An employer may ask the employee to confirm a request on a form. The form should be simple, and the employer cannot ignore or close the original request because the form was not completed. The verbal request already put the employer on notice.
2. Clarify only what is unclear. The interactive process helps identify the limitation or the change needed if either is unclear, and find a workable accommodation. Many requests need no further process. See the PWFA Interactive Process and Documentation guide.
3. Limit documentation. Under the regulation, supporting documentation may be sought only when reasonable under the circumstances, and only the minimum needed to confirm the condition, its relationship to pregnancy, childbirth, or a related medical condition, and the change needed. It is not reasonable to ask when the limitation and need are obvious and the employee confirms them, when the employer already has enough information, when a pregnant employee asks for one of the four simple accommodations, or when the request concerns pumping at work. These limits are in the regulation, not the statute, so review them if the rule changes.
4. Check the other laws. One conversation can trigger several statutes. Gestational diabetes or severe postpartum depression may also be an ADA disability. Incapacity, prenatal care, and recovery may qualify for FMLA leave for an eligible employee. Expressing breast milk brings in the PUMP Act provisions of the FLSA, and many states have their own pregnancy accommodation laws. The employee does not have to name any of them.
5. Decide and implement. See Reasonable Accommodations Under the PWFA for more on reasonable accommodations, including temporary suspension of an essential function.

One Request, Four Laws: Worked Scenarios shows how to sequence overlapping requirements. The Leave and Accommodation Management seminar focuses on requests where the PWFA, ADA, FMLA, and state law apply together.

Common Recognition Mistakes

• Waiting for the form. "I can't do anything until you fill out the request" can turn a valid request into a delay.
• Applying the ADA threshold. Asking whether the condition is a disability, or sending the standard ADA medical questionnaire, tests for something the PWFA does not require.
• Ignoring a third party. A call from a spouse or a note handed in by a union representative can count.
• Punishing the ask. Adverse action because an employee requested or used an accommodation is separately unlawful. Under the regulation, a retaliation claim does not depend on the employee having been entitled to the accommodation.

Frequently Asked Questions

The Bottom Line

A PWFA known limitation is a low bar by design: a pregnancy-related condition, however minor, that someone has communicated to the employer. The request needs no form and no legal vocabulary. Employers handle this well when supervisors hear "I need to sit down" as the start of a process, grant what is simple, and hand the rest to HR the same day.

Start with the overview in Pregnant Workers Fairness Act: An Employer Guide, then use the PWFA Compliance Checklist and the shorter PWFA Compliance Checklist page to test your intake process. The Leave and Accommodation Management Guide places pregnancy accommodation alongside FMLA, ADA, and state leave. For hands-on practice with overlapping requests, see the Leave and Accommodation Management seminar.