FMLA Medical Certification: Forms, Deadlines, and Recertification

An FMLA medical certification is the paperwork your employer can require to verify that your leave request connects to a qualifying serious health condition under the Family and Medical Leave Act. Your healthcare provider fills it out, you return it, and it becomes the medical basis your employer relies on to approve or deny FMLA protection. You generally have 15 calendar days from the employer’s request to hand it back, and blowing that deadline without a good reason can cost you FMLA coverage for the leave.¹

Which Form You’ll Use

The Department of Labor publishes standardized, optional-use forms. Form WH-380-E covers leave for your own serious health condition. Form WH-380-F covers leave to care for a family member.²

Military-related leave has its own set. Form WH-384 is for qualifying exigency leave tied to a family member’s foreign deployment. Form WH-385 covers military caregiver leave for a current servicemember with a serious injury or illness, and WH-385-V does the same for veterans.²

Your employer isn’t required to use the DOL versions. A company can create its own form, but that form has to request the same information as the federal template and nothing more.²

Who Can Sign the Certification

Doctors of medicine and osteopathy qualify. So do podiatrists, dentists, clinical psychologists, optometrists, nurse practitioners, nurse-midwives, physician assistants, and clinical social workers, as long as they are licensed in your state and acting within their scope of practice. Chiropractors qualify only for treatment involving spinal manipulation confirmed by X-ray. Christian Science Practitioners listed with the First Church of Christ, Scientist in Boston also qualify.³

If you’re being treated by a provider outside the United States, that provider can complete the form as long as they’re authorized under the law of that country. And any provider your employer’s group health plan already accepts for benefit claims counts too, even if they don’t fit the categories above.³

What the Certification Must Include

The form is not a license for your employer to comb through your medical history. The regulations set the required content, and providers should stick to it:⁴

The healthcare provider’s contact information.
When the condition started and how long it’s expected to last.
Relevant medical facts such as symptoms, hospitalizations, visits, prescribed medications, or referrals. A specific diagnosis is not required, but there must be enough detail to show the leave is medically justified.
Whether you can perform your essential job functions (own condition) or why your family member needs your care (family leave).
Whether the leave will be continuous or intermittent. If intermittent, the provider must estimate frequency of episodes and how long each will last.

The intermittent details matter. A phrase like “flare-ups may occur” is not enough. Your provider needs to give real numbers so your employer can plan around your absences.⁴

The GINA Warning

Because health questions can accidentally invite family medical history, the forms carry a warning under the Genetic Information Nondiscrimination Act telling providers not to include genetic information, genetic test results, or information about genetic services. If the employer’s form includes that warning and a provider still discloses genetic information, the acquisition is treated as inadvertent rather than a GINA violation.⁵

Deadlines You Need to Watch

Your employer should request the certification when you first give notice of your need for leave, or within five business days after that. For unforeseeable leave, the five-day clock starts when the leave begins.¹

Once you get the request, you have 15 calendar days to return the completed form. That window can be extended if you’re making a genuine effort but something outside your control gets in the way, such as a medical emergency or a provider who can’t schedule you quickly. Your employer can also grant more than 15 days on its own.¹

Fixing an Incomplete or Insufficient Form

An employer cannot silently reject your certification. If the form is incomplete (blank fields) or insufficient (answers too vague to support the leave), the employer must tell you in writing exactly what’s wrong. You then get seven calendar days to fix the problems and resubmit.⁶

How the Employer Can Verify It

Once you submit the form, your employer has two limited tools. Authentication means confirming that the healthcare provider actually signed the document. Clarification means contacting the provider to decode handwriting or understand an answer.⁷

Your direct supervisor is not allowed to make that contact under any circumstances. It has to come from HR, a leave administrator, a management official outside your chain of command, or a healthcare provider retained by the employer.⁸

Second and Third Opinions

If your employer genuinely doubts the certification, it can require you to see a different provider for a second opinion. The employer chooses the provider, pays for the visit, and covers reasonable travel costs. That second provider cannot be someone who regularly works for or contracts with the employer.⁷

If the second opinion disagrees with the first, the employer can pay for a third, jointly chosen by you and the employer. That third opinion is final and binding.⁸ You can’t be required to travel beyond your normal commuting distance for these appointments except in unusual circumstances.

Recertification

Your employer can ask you to recertify periodically, but no more than once every 30 days and only in connection with an actual absence.⁹

If your original certification specifies a minimum duration longer than 30 days, the employer generally has to wait until that period ends. Even so, the employer can always ask for recertification every six months tied to an absence.⁹

Three situations let the employer ask sooner than 30 days:

You request an extension of the original leave.
Your circumstances change significantly, meaning your absences are lasting longer or happening more often than the certification predicted.
The employer receives information casting doubt on the stated reason for the leave.

For conditions that stretch across leave years, your employer can require a brand-new certification with the first absence of each new 12-month leave year. Because that counts as a new certification rather than a recertification, the employer can seek second and third opinions on it.¹⁰

What Happens If You Don’t Return It

This is where people lose their protections. For foreseeable leave, if you don’t provide the certification on time, your employer can deny FMLA coverage for the entire period until you turn it in. Miss the 15-day window by 30 days without a good reason, and those 30 days can be treated as unprotected absence.¹¹

For unforeseeable leave, the employer can deny FMLA protection for any leave taken after the 15-day window closes, unless you can show genuine extenuating circumstances such as a medical emergency. If you never produce the certification, the leave doesn’t count as FMLA leave at all, and your employer can treat it as unauthorized and discipline you accordingly.¹¹

The same rule applies to recertification. Fail to produce it after a valid request, and your continued leave loses FMLA protection.¹¹

Returning to Work: Fitness-for-Duty Certification

If you took leave for your own serious health condition, your employer can require a fitness-for-duty certification before letting you return. This is a separate document from your original leave certification, and it must state that you’re able to resume work.¹²

The employer can also require the certification to address whether you can perform the essential functions of your specific job, but only if it gave you a list of those essential functions no later than the designation notice at the start of your leave. You pay for this certification yourself, including any related time or travel.

Second and third opinions are not permitted on a fitness-for-duty certification. For intermittent leave, the employer can require one only once every 30 days, and only when there are reasonable safety concerns tied to your condition.¹²

If your employer told you a fitness-for-duty certification would be required and you show up without one, the employer can delay your reinstatement until you produce it. Never providing it puts your reinstatement rights at risk.¹¹

How Your Employer Must Store the Information

Certifications, recertifications, and any related medical history have to be kept in separate, confidential files, not in your regular personnel file.¹³

Access is limited. Supervisors and managers can be told about work restrictions or accommodations, but not the underlying diagnosis. First aid and safety personnel may be informed if your condition could require emergency treatment. Government officials investigating FMLA compliance can request the records. If the file contains any genetic information or family medical history, the employer also has to follow GINA’s confidentiality requirements on top of the FMLA rules.¹³

1
eCFR. 29 CFR 825.305 – Certification, General Rule
2
U.S. Department of Labor. FMLA Forms
3
eCFR. 29 CFR 825.125 – Definition of Health Care Provider
4
eCFR. 29 CFR 825.306 – Content of Medical Certification
5
U.S. Equal Employment Opportunity Commission. Questions and Answers for Small Businesses – EEOC Final Rule on Title II Genetic Information
6
eCFR. 29 CFR 825.305 – Certification, General Rule
7
eCFR. 29 CFR 825.307 – Authentication and Clarification of Medical Certification
8
eCFR. 29 CFR 825.307 – Authentication and Clarification of Medical Certification
9
eCFR. 29 CFR 825.308 – Recertifications
10
U.S. Department of Labor. Employers Guide to the Family and Medical Leave Act
11
eCFR. 29 CFR 825.313 – Failure to Provide Certification
12
eCFR. 29 CFR 825.312 – Fitness-for-Duty Certification
13
eCFR. 29 CFR 825.500 – Recordkeeping Requirements