Vaccine exemption laws vary by state along three tiers. All 50 states and the District of Columbia allow medical exemptions. About 44 states and D.C. also allow religious exemptions. Only 16 states allow philosophical or personal belief exemptions. Which type you can claim, what paperwork you need, and how often you have to renew all depend on where you live.1Centers for Disease Control and Prevention. State Vaccination Requirements
Medical Exemptions Are Available Everywhere
A medical exemption applies when a licensed healthcare provider determines that a specific vaccine poses a genuine health risk to the patient. The qualifying conditions aren’t left to individual judgment. They track the contraindications published by the CDC’s Advisory Committee on Immunization Practices (ACIP).
The most common contraindication across all vaccines is a severe allergic reaction (anaphylaxis) to a previous dose or a vaccine ingredient. Beyond that, the list is vaccine-specific. People with severe immune deficiency generally should not receive live vaccines. Pregnant women should avoid live attenuated virus vaccines. Children who experienced encephalopathy within seven days of a pertussis-containing vaccine should not receive additional pertussis doses.2Centers for Disease Control and Prevention. Contraindications and Precautions
Temporary Versus Permanent Medical Exemptions
Most medical exemptions are temporary. A child undergoing chemotherapy qualifies while immunosuppressed, but the exemption expires once treatment ends and the immune system recovers. Many states set a default duration of one year and require the physician to resubmit paperwork annually. Permanent medical exemptions are less common and typically limited to lifelong conditions like severe combined immunodeficiency (SCID) or a documented history of anaphylaxis to a vaccine ingredient with no alternative formulation available.
Stricter Oversight in Some States
A handful of states have added review mechanisms to catch fraudulent or clinically unjustified medical exemptions. California’s approach is the most well-known. State health officials can review medical exemption forms when a school’s immunization rate drops below 95% or when a single physician submits more than five exemptions per year. If a reviewer determines an exemption lacks a valid clinical basis, the state can revoke it. This kind of oversight is still the exception, but it reflects a broader trend toward tighter scrutiny following outbreaks of preventable diseases.
Religious Exemptions in About 44 States
Roughly 44 states and Washington, D.C., offer some form of religious exemption. The legal standard is a sincerely held religious belief that conflicts with vaccination. This does not require membership in any organized religion or denomination. Most states accept personal religious convictions that are genuinely held, even if they don’t align with the official teachings of a particular faith.
The process varies widely. Some states ask only for a signed statement from the parent or guardian. Others require a notarized affidavit. A few require completion of a vaccine education module before the exemption is granted, on the theory that parents should understand the medical tradeoffs before making the decision final.
States That Have Eliminated Religious Exemptions
Four states—California, New York, Maine, and Connecticut—currently allow only medical exemptions, having repealed their religious exemption provisions. New York and Maine both eliminated religious exemptions in 2019. Connecticut followed in 2021.
Movement has gone the other direction too. Mississippi and West Virginia historically allowed only medical exemptions for decades, but both states added religious exemption pathways in recent years. Exemption law is not on a one-way track. Legislatures expand and contract these rights depending on the political moment, so check your current state statute before assuming last year’s rules still apply.
Philosophical or Personal Belief Exemptions in 16 States
Sixteen states allow exemptions based on philosophical, moral, or personal objections, with no religious component required. This is the narrowest category of exemption available in American law, and it has been shrinking.
States that offer personal belief exemptions generally accept a signed statement that the parent or guardian holds a genuine objection, but the administrative hoops differ. Some states require nothing beyond a signature. Others impose more friction. Oregon, for example, requires parents to either complete an online vaccine education module or have a healthcare provider sign an education certificate before the exemption takes effect.
Washington shows a middle-ground approach. The state still allows personal belief exemptions for most required vaccines, but specifically prohibits them for measles, mumps, and rubella. Parents who object to the MMR vaccine on non-religious grounds must either obtain a medical exemption or claim a religious one. A philosophical objection alone won’t work for those three diseases.
The national trend leans toward restricting or eliminating personal belief exemptions, particularly after measles outbreaks concentrated in communities with high exemption rates. States that keep these exemptions increasingly attach educational requirements or shortened validity periods to make the process more deliberate.
An Exemption Doesn’t Guarantee School Attendance During an Outbreak
Having a valid exemption on file does not protect your child from being sent home during an outbreak of a vaccine-preventable disease. Local and state health officers can exclude unvaccinated students regardless of whether they hold a medical, religious, or philosophical exemption. The exemption gets your child enrolled. It does not override public health emergency powers.
The practical impact is significant. During a measles outbreak at a school, all students without documentation of two doses of MMR—including those with valid exemptions—can be excluded until 21 days after the last known case. If new cases keep appearing, that 21-day clock resets each time, potentially keeping unvaccinated children out of school for weeks or months. Students who receive a vaccination after exposure may still be excluded for the full incubation period.
Paperwork That Gets an Exemption Accepted
Exemptions are typically granted on a per-vaccine basis. You specify which vaccines you’re opting out of. There is usually no single checkbox that covers everything at once.
Medical Exemption Forms
Medical exemptions require a licensed physician (MD or DO) to complete and sign a state-provided form. In some states, advanced practice registered nurses or physician assistants can also sign. The physician must identify the specific vaccine being exempted and explain the clinical reason, typically a contraindication recognized by the ACIP guidelines.2Centers for Disease Control and Prevention. Contraindications and Precautions The physician also needs to indicate whether the exemption is temporary or permanent, and temporary exemptions usually require an expected end date or re-evaluation date. Without a completed clinical justification from a qualifying practitioner, medical exemption applications are routinely rejected at initial review.
Religious and Philosophical Exemption Forms
Non-medical exemptions generally require a signed statement from the parent, guardian, or adult student affirming that vaccination conflicts with their sincerely held beliefs. Many states require the statement to be notarized. In states with education requirements, you’ll also need to attach a certificate of completion from the state’s vaccine education module or a signed form from a healthcare provider confirming that you discussed the risks and benefits of immunization.
Missing signatures, failing to specify which vaccines the exemption covers, or submitting an un-notarized form in a state that requires notarization will result in rejection. The form also needs to reach the right place, typically the school or childcare facility, though some states route applications through the state health department first.
Filing and Renewal
Many school districts accept exemption documentation through digital portals where you upload scanned forms directly to the student’s health record. In states that process exemptions through the health department, you may submit by mail or through an online application system. Keep copies of everything you submit, digital and paper. You should receive confirmation that your documents were received. If you don’t hear back within a reasonable timeframe, follow up. An exemption sitting in a queue doesn’t protect your child from being turned away at enrollment.
Renewal rules depend on your state and the type of exemption. Many states require medical exemptions to be renewed annually unless the physician specifies a permanent or lifelong condition. Non-medical exemptions follow different schedules. Some states require annual renewal. Others accept a one-time filing that lasts for the duration of enrollment. At least one state sets a two-year validity period tied to the notarization date. Mark the expiration date and start the renewal process well before it lapses.
HIPAA Does Not Cover Your Exemption Records
A common misconception is that HIPAA governs how schools handle vaccination and exemption records. It does not. The Department of Health and Human Services has been explicit that the HIPAA Privacy Rule does not apply when a school asks about vaccination status, and does not apply when an employer requests or collects vaccination information from employees.3U.S. Department of Health and Human Services. HIPAA, COVID-19 Vaccination, and the Workplace For students, the Family Educational Rights and Privacy Act (FERPA) governs the confidentiality of education records, including health records maintained by schools.