Can You Take FMLA Leave for Rehab? Job Protection During Treatment
Reviewed by Renew Medical Group & its Physicians. Reviewed September 14, 2026.
“I can’t take a month off work” is one of the most common reasons people postpone treatment. Sometimes that is true. Often it is not, and the person has no idea what protections exist.
Here is what the law actually provides, and where the limits are.
FMLA covers treatment, with conditions
The federal Family and Medical Leave Act provides eligible employees up to 12 workweeks of unpaid, job-protected leave in a 12-month period for a serious health condition. Your group health benefits continue during the leave on the same terms.
Federal regulations address substance use directly. Under 29 CFR 825.119, substance use may be a serious health condition, and FMLA leave may be taken for treatment provided by a health care provider or by a provider of health care services on referral by a health care provider. The regulation is equally direct about the boundary: absence because of the employee’s use of the substance, rather than for treatment, does not qualify.
Checking into a treatment program is protected. Missing work because you were using is not.
Eligibility requires all of the following:
- Your employer has 50 or more employees within 75 miles of your worksite
- You have worked for that employer at least 12 months
- You have worked at least 1,250 hours in the 12 months before the leave
On return, 29 CFR 825.214 entitles you to your same position or an equivalent one with the same pay, benefits, and working conditions.
The limit nobody mentions
Subsection (b) of the same regulation contains a provision people are often blindsided by. An employer may not take action against you because you exercised your right to take FMLA leave for treatment. But if the employer has an established policy on substance use, applied in a non-discriminatory manner and communicated to all employees, providing that an employee may be terminated for substance use under certain circumstances, the employee may be terminated under that policy whether or not they are presently on FMLA leave.
Put plainly: FMLA protects you from being fired for taking the leave. It does not override a pre-existing, evenly enforced company policy about substance use itself.
Disputes in this area usually turn on the line between termination under a consistently applied prior policy and termination for requesting treatment leave. Documentation matters on both sides. If you are worried about this, talk to an employment attorney before you disclose anything. Many offer free consultations.
The regulation also protects employees taking FMLA leave to care for a covered family member receiving treatment.
California adds protections
California Family Rights Act (CFRA). CFRA covers employers with five or more employees, a far lower threshold than FMLA’s 50. It provides up to 12 weeks of job-protected leave for a serious health condition. Many people who do not qualify for FMLA do qualify under CFRA.
Labor Code sections 1025 through 1028. California employers with 25 or more employees must reasonably accommodate an employee who wishes to voluntarily enter and participate in an alcohol or drug rehabilitation program, provided it does not impose undue hardship on the employer. The statute also requires the employer to safeguard the privacy of the employee regarding that participation. The accommodation is generally unpaid time off, and the protection applies to voluntary entry, before a problem surfaces at work.
FEHA. California’s Fair Employment and Housing Act separately prohibits retaliation against employees who request accommodations for a disability, which can include leave for treatment of a qualifying substance use disorder.
State Disability Insurance (SDI). California SDI can provide partial wage replacement for a non-work-related condition that prevents you from working, with certification from a treating provider. This is worth asking about, because unpaid leave and no income are different problems.
The ADA and current use
The Americans with Disabilities Act does not protect current illegal drug use. It may protect a person who has completed or is participating in a supervised rehabilitation program and is no longer engaging in such use. Alcohol use disorder is treated somewhat differently, though employers may still enforce workplace conduct and performance standards.
This is one of the more nuanced areas of employment law and turns heavily on the specific facts.
What your employer is entitled to know
Less than most people assume.
For FMLA or CFRA leave, an employer may require a certification from a health care provider under 29 CFR 825.305. The certification establishes that a serious health condition exists and the expected duration and schedule of leave. Under CFRA, an employer generally may not require the diagnosis to be identified.
Your clinical records are protected by HIPAA and, for substance use disorder treatment specifically, by the stricter confidentiality rules of 42 CFR Part 2. Those records cannot be released to your employer without your written consent.
How to request leave
1. Check your eligibility. Count your employer’s size, your tenure, and your hours.
2. Read your employee handbook. Find the leave policy and the substance use policy before you say anything to anyone. Given subsection (b) above, that policy is the single most important document in this process.
3. Decide what to disclose. You can request leave for a serious health condition without naming the condition. You do not owe your manager a narrative.
4. Request in writing. Ask HR for the leave paperwork. Where the need is foreseeable, FMLA expects 30 days’ notice; where it is not, notice as soon as practicable. Treatment need is often not foreseeable, and that is contemplated by the rules.
5. Get the certification completed. Bring the form to your treatment provider. We complete these routinely.
6. Ask about wage replacement. SDI, accrued PTO, sick leave, and any short-term disability policy.
7. Plan the return. Some employers require a fitness-for-duty certification before you come back. We provide return-to-work documentation as well.
What we handle on our end
Double Peak Recovery routinely completes the paperwork that makes this work: FMLA and CFRA medical certification forms, verification of admission, program completion letters, and return-to-work certifications for employers and disability carriers. Tell our admissions team at intake that you have an employment situation to manage, and we will build it into your plan rather than scrambling at discharge.
Frequently asked questions
1. Does FMLA cover rehab?
Federal regulations provide that FMLA leave may be taken for substance use treatment by a health care provider or on their referral, if you meet the eligibility requirements. Absence caused by the use itself does not qualify.
2. Will my employer know I went to rehab?
They will know you took medical leave. Under CFRA an employer generally cannot require the diagnosis, and your treatment records are protected under HIPAA and 42 CFR Part 2.
3. Can I be fired for going to treatment?
You cannot lawfully be fired for taking protected leave. An employer may still act under an established, uniformly applied substance use policy that predates your leave. Consult an employment attorney about your specific facts.
4. Is FMLA leave paid?
FMLA and CFRA leave are unpaid. You may be able to use accrued PTO, and California SDI may provide partial wage replacement with provider certification.
5. What if my employer has fewer than 50 employees?
CFRA covers California employers with five or more employees. Labor Code 1025 may also require accommodation at employers with 25 or more.
6. Am I guaranteed my job back?
FMLA entitles an eligible employee returning from protected leave to the same or an equivalent position, even if the role was filled or restructured while you were away.
7. How long is residential treatment?
Length of stay is determined clinically and varies. Many clients complete detox followed by residential care over roughly 30 days.
Talk to us before you talk to HR
Our admissions team can tell you what documentation we provide and what a realistic timeline looks like, so you go into the conversation with your employer prepared.
- Related reading:
- Admissions Process
- Residential Treatment
- Aftercare & Alumni
This article is general information and is not legal advice. Employment law outcomes depend on specific facts, your employer’s policies, and your jurisdiction. Consult a qualified employment attorney about your situation. Double Peak Recovery does not guarantee any particular treatment or employment outcome.
Sources & Resources
- 29 CFR 825.119, Leave for treatment of substance abuse (eCFR)
- U.S. Department of Labor, Family and Medical Leave Act
- DOL Employee Guide to the FMLA
- California Labor Code section 1025
- California Civil Rights Department, California Family Rights Act
- California EDD, State Disability Insurance
- SAMHSA, 42 CFR Part 2 confidentiality regulations
