Every state in the U.S. sets school vaccination requirements that children must meet before enrolling in public, private, or vocational school, and every state also offers at least one way to request an exemption. The required vaccines closely follow the Advisory Committee on Immunization Practices (ACIP) schedule, but the specific shots, deadlines, paperwork, and exemption options are set state by state. The authority of states to require immunization as a condition of school attendance has been settled law for over a century.1Justia Law. Jacobson v. Massachusetts, 197 U.S. 11 (1905)
Vaccines Required for Kindergarten Entry
State immunization lists track closely with the CDC’s childhood schedule. For kindergarten, the standard required set generally includes:
- DTaP: five doses protecting against diphtheria, tetanus, and pertussis, with the final dose given at age four to six.2Centers for Disease Control and Prevention. Child and Adolescent Immunization Schedule Notes
- Polio (IPV): four doses, with the last administered at age four to six.2Centers for Disease Control and Prevention. Child and Adolescent Immunization Schedule Notes
- MMR: two doses for measles, mumps, and rubella, both given on or after the first birthday.2Centers for Disease Control and Prevention. Child and Adolescent Immunization Schedule Notes
- Hepatitis B: three doses, typically starting at birth.2Centers for Disease Control and Prevention. Child and Adolescent Immunization Schedule Notes
- Varicella: two doses for chickenpox, or documented proof of prior infection from a healthcare provider.2Centers for Disease Control and Prevention. Child and Adolescent Immunization Schedule Notes
Your state health department publishes the current list, so confirm specifics with the district or health department where your child will attend.
Added Requirements in Middle and High School
More vaccines come due as students move up. A Tdap booster is commonly required around seventh grade to restore fading pertussis protection. Many states also require the meningococcal conjugate vaccine for secondary school entry, though this is not universal. Some states mandate hepatitis A as well.
Recommended Is Not the Same as Required
Parents sometimes confuse what the CDC recommends with what schools require. The ACIP recommends annual flu shots and updated COVID-19 vaccines for school-age children, but those recommendations have not become school mandates in most places.3Centers for Disease Control and Prevention. 2025-2026 Flu Season As of mid-2025, no state required COVID-19 vaccination for any grade level. Your pediatrician may strongly encourage a flu shot each fall, but in most states a child won’t be barred from class for skipping it.
Proving Your Child Is Vaccinated
Schools require an official immunization certificate or a state-approved form with specific details for every dose. These forms are available through school district offices, local health departments, and your child’s pediatrician.
Each dose needs its exact date — month, day, and year. A form showing only a year or month will typically be rejected. The form also needs the signature or official stamp of a licensed healthcare provider. Before submitting, compare the school form against your pediatrician’s records; mismatched dates or missing doses are the most common reason families get flagged during the enrollment audit.
The child’s name, date of birth, and other identifiers on the certificate must match the enrollment paperwork exactly. Inconsistencies can delay your child’s start date.
Many districts now accept digital submissions through online enrollment portals, and some states accept digital health credentials delivered by QR code. Whichever method you use, make sure you receive a confirmation of receipt. Uploads sometimes get lost at intake.
Records From Vaccines Received Abroad
Families moving to the U.S. from abroad face extra steps. Vaccine doses given outside the country are generally accepted when documented schedules and doses line up with ACIP recommendations. Verbal reports of vaccination are not accepted; you need written, dated records.4Centers for Disease Control and Prevention. Immunizations – Immigrant and Refugee Health
If the records are in another language, get a certified translation. Vaccine formulations also differ across countries. A monovalent measles vaccine given abroad, for example, doesn’t satisfy the MMR requirement.4Centers for Disease Control and Prevention. Immunizations – Immigrant and Refugee Health When records are incomplete or missing, a U.S. provider can run titer blood tests to check for existing immunity, or the child can restart the vaccine series. Restarting is safe even if some doses were previously given.
Medical Exemptions
Every state allows a medical exemption when a vaccine would pose a genuine health risk. The process requires a written statement from a licensed physician identifying the specific medical reason the child should not receive a particular vaccine. Common qualifying conditions include a severe allergic reaction (anaphylaxis) to a previous dose or vaccine ingredient and significant immunosuppression that makes live vaccines dangerous.5Centers for Disease Control and Prevention. Contraindications and Precautions – Vaccines and Immunizations
The physician’s statement should say whether the exemption is temporary or permanent. A child recovering from chemotherapy, for instance, may need a temporary exemption that ends once their immune system recovers. The exemption only applies to the specific vaccines that are medically contraindicated. The child is still expected to receive all other required shots.
Religious Exemptions
Most states offer a religious exemption for families whose sincere religious beliefs conflict with vaccination. The legal standard focuses on sincerity rather than denomination. Courts have consistently held that the belief does not need to be part of an organized religion’s official doctrine, and it does not need to be theologically consistent or logical to outsiders. Some families object to specific vaccines based on how they were manufactured rather than opposing vaccination broadly.6U.S. Department of Health and Human Services. HHS Reinforces Religious and Conscience Exemptions from Childhood Vaccine Mandates Depending on the state, the exemption may require a signed statement, a notarized affidavit, or an explanation of how the belief specifically prohibits immunization.
Philosophical or Personal Belief Exemptions
A smaller number of states allow exemptions based on personal, moral, or philosophical objections that aren’t tied to religion. Where available, these exemptions typically require the parent to sign an acknowledgment of the public health risks of leaving a child unvaccinated. Several states, including Arizona, Oregon, and Washington, also require parents to complete a vaccine education module or consult with a healthcare provider before the exemption is granted.
States That Allow Only Medical Exemptions
A handful of states, including California, Connecticut, Maine, and New York, have eliminated all non-medical exemptions. In those states, only a physician-certified medical contraindication can excuse a child from the vaccination requirements. If you live in one of these states and have religious or philosophical objections, the law does not currently provide an exemption pathway for school enrollment. Exemption rules are the area of school vaccination policy that’s shifting most quickly, so check your state’s current law rather than relying on what was true a few years ago.
Provisional Enrollment If the Vaccine Series Isn’t Finished
If your child has started a multi-dose series but hasn’t finished it, most states won’t lock them out of class. Around 45 states allow provisional or conditional enrollment, where a student attends while catching up on remaining doses on a defined schedule.7National Center for Biotechnology Information. 8 Months to 5 Days: What Happened When Pennsylvania Changed the Vaccination Regulations for Provisional Enrollment?
Grace periods vary enormously. Some states give families the better part of a school year to finish outstanding doses. Others allow as little as five days after the first day of school.7National Center for Biotechnology Information. 8 Months to 5 Days: What Happened When Pennsylvania Changed the Vaccination Regulations for Provisional Enrollment? Find out your state’s deadline early. Missing it typically means exclusion from school until the required doses are administered.
What Happens If You Don’t Comply
Failing to provide vaccination records or an approved exemption by the deadline typically means your child cannot attend class. Schools will issue a notice of non-compliance, usually with a short window — often a few days to a few weeks — to produce the missing documentation. If the deadline passes, the student is excluded until the records are in order. This applies to public schools, private schools, and vocational programs alike.
The consequences escalate during an active outbreak. When a case of a vaccine-preventable disease like measles appears in a school, health departments typically require unvaccinated students to stay home for the full incubation period, up to 21 days after exposure for measles.8Centers for Disease Control and Prevention. Checklist for K-12 Schools – Measles This applies even to students with approved exemptions on file. Schools keep separate records of exempt students specifically so they can identify and notify affected families quickly when an outbreak occurs.
Help Paying for Required Vaccines
Cost should not prevent a child from meeting school requirements. The federal Vaccines for Children (VFC) program provides recommended vaccines at no cost to children who are uninsured, enrolled in Medicaid, American Indian or Alaska Native, or underinsured (meaning their insurance doesn’t cover vaccines or caps vaccine benefits).9Centers for Disease Control and Prevention. Vaccines for Children (VFC) Program Eligibility The program is established under federal law and administered through participating providers nationwide.10Office of the Law Revision Counsel. 42 U.S. Code 1396s – Program for Distribution of Pediatric Vaccines
One limitation to know: underinsured children can only receive VFC vaccines at a Federally Qualified Health Center (FQHC), a Rural Health Clinic, or an approved deputization location, not at a regular pediatrician’s office.9Centers for Disease Control and Prevention. Vaccines for Children (VFC) Program Eligibility Children whose insurance fully covers vaccines are not eligible for VFC.
FQHCs are also a good option for families who don’t qualify for VFC but are struggling with costs. These centers use a sliding fee scale based on family size and income, with full discounts for families at or below the federal poverty line and partial discounts up to twice the poverty level. No patient can be turned away for inability to pay.11Health Resources and Services Administration. Health Center Program Compliance Manual – Chapter 9: Sliding Fee Discount Program Local health departments also frequently offer school-required vaccines at low cost, particularly during back-to-school drives in late summer.
Enrollment Rights for Homeless and Foster Children
Under the McKinney-Vento Homeless Assistance Act, schools must enroll homeless children immediately, even when the child cannot produce immunization records or other paperwork normally required for enrollment.12GovRegs. 42 USC 11432 – Grants for State and Local Activities for the Education of Homeless Children and Youths The school cannot delay the child’s first day of class while waiting for records.
Once the child is enrolled, the school works with its homeless education liaison to track down existing records by contacting prior schools, healthcare providers, or state immunization databases.13National Center for Homeless Education. From the School Office to the Classroom: Strategies for Enrolling and Supporting Students Experiencing Homelessness If records can’t be located, the school coordinates with local health agencies to get the child vaccinated. Missing paperwork cannot be used as a barrier to keep a homeless or foster child out of school. If a school tries to turn your child away for lack of records in this situation, ask to speak with the district’s McKinney-Vento liaison.