Vaccination requirements in the United States come from three main places: the state you live in, which sets school and college immunization rules; your employer, which can require shots as a workplace safety measure; and the federal government, which requires certain vaccines for immigrants and for people in specific federal programs. There is no single national vaccine law that applies to everyone. What you must have, and what exemptions you can claim, depends on which of these rules reaches you.
Who Sets the Rules
States hold the primary authority to require vaccinations, drawn from the police power reserved to them under the Tenth Amendment. The Supreme Court endorsed that authority in Jacobson v. Massachusetts in 1905 and has not disturbed the framework since. Federal authority is narrower and reaches only areas of clear constitutional power: immigration, the armed forces, federal employment, and conditions attached to federal funding programs like Medicare and Medicaid.
That division is why the rules you actually encounter differ so much depending on your situation. A parent enrolling a child in kindergarten deals with state law. A nurse at a hospital deals with employer policy. A green card applicant deals with federal immigration rules. Each track has its own list of required shots and its own exemption procedure.
School Vaccination Requirements
Every state requires certain immunizations before a child can enroll in school, and the requirements apply to both public and private schools. State lists generally track CDC recommendations, and four vaccines are required for kindergarten entry in nearly every state: DTaP (diphtheria, tetanus, and pertussis), polio, MMR (measles, mumps, and rubella), and varicella (chickenpox).1Centers for Disease Control and Prevention. State School Immunization Requirements and Vaccine Exemption Laws
If a child hasn’t completed the required shots by the deadline and doesn’t have a valid exemption, the standard consequence is exclusion from school until they do. States don’t typically fine parents or bring criminal charges. Keeping the child out of class is the enforcement.
At least 34 states require additional vaccines for students entering a college or university. The most common addition is the meningococcal vaccine, required by at least 22 states, often for students living in dorms.2National Conference of State Legislatures. State Vaccine Requirements for College Entry Colleges frequently set their own immunization policies on top of what state law requires, so the school’s own list is usually the one that governs enrollment.
Workplace Vaccine Mandates
Private employers generally have the right to require vaccinations as a condition of employment. The Equal Employment Opportunity Commission has confirmed that federal anti-discrimination laws do not prevent employers from mandating vaccines, provided they make reasonable accommodations for medical conditions and sincerely held religious beliefs.3U.S. Equal Employment Opportunity Commission. What You Should Know About COVID-19 and the ADA, the Rehabilitation Act, and Other EEO Laws Healthcare workers, food handlers, and staff in congregate settings are most likely to face these policies, but any private employer can adopt one.
If you want an accommodation, the Americans with Disabilities Act covers medical requests and Title VII of the Civil Rights Act covers religious ones. Common accommodations include regular testing, masking, remote work, or reassignment away from higher-risk areas. The standard for denying a religious request changed in 2023. In Groff v. DeJoy, the Supreme Court held that an employer must show the accommodation would impose substantial increased costs in relation to the conduct of its particular business, replacing the earlier, much lower “more than trivial cost” standard.4Supreme Court of the United States. Groff v. DeJoy Employers that deny religious accommodations without meeting that higher bar risk EEOC enforcement.5U.S. Equal Employment Opportunity Commission. Rex Healthcare to Pay $150,000 in EEOC COVID-19 Vaccine Religious Accommodation Suit
Immigration Vaccination Requirements
Anyone applying for an immigrant visa or for adjustment to permanent resident status must show proof of vaccination. The Immigration and Nationality Act requires immunization against mumps, measles, rubella, polio, tetanus, diphtheria, pertussis, hepatitis B, and Haemophilus influenzae type B, along with any additional vaccines recommended by the CDC’s Advisory Committee on Immunization Practices.6Federal Register. Criteria for Vaccination Requirements for U.S. Immigration Purposes A civil surgeon or panel physician verifies your status at the required medical exam. If shots are missing, you’ll need to begin or complete the series before approval, unless you qualify for a medical or religious waiver.
Exemptions You Can Claim
Every mandate is paired with a defined set of exemptions. Which ones are available depends on the state and the setting.
Medical Exemptions
Every state allows a medical exemption for a legitimate health reason, such as a severe allergy to a vaccine component or a compromised immune system.7Centers for Disease Control and Prevention. State Vaccination Requirements A licensed physician must certify the exemption, usually on a state form. Some states now require state health officials to review and approve the exemption before it takes effect.
Religious Exemptions
About 45 states and the District of Columbia offer some form of religious exemption from school vaccination requirements; a handful of states have eliminated all non-medical exemptions.8National Conference of State Legislatures. State Non-Medical Exemptions from School Immunization Requirements Courts have held that the Constitution does not require states to offer a religious exemption at all. Where one exists, you generally submit a written statement, and officials may examine whether the belief is genuinely religious rather than a personal preference framed in religious terms.
Philosophical or Personal Belief Exemptions
About 16 states allow exemptions based on philosophical or personal objections that are not tied to religion.8National Conference of State Legislatures. State Non-Medical Exemptions from School Immunization Requirements Several states have repealed these exemptions after outbreaks of vaccine-preventable diseases. Where they remain, the process often requires parents to review educational materials on vaccine risks and benefits or to obtain a healthcare provider’s signature confirming that counseling occurred.
What Federal Law Does Not Currently Require
Two recent developments matter if you’re trying to figure out whether a federal mandate reaches you. In January 2022, the Supreme Court stayed OSHA’s vaccine-or-testing rule for employers with 100 or more workers, which would have covered about 84 million employees. The Court held OSHA’s authority extends to workplace safety, not to broad public health measures aimed at a risk present everywhere.9Supreme Court of the United States. National Federation of Independent Business v. OSHA Separately, the Centers for Medicare & Medicaid Services withdrew its COVID-19 vaccination requirement for staff at participating healthcare facilities in 2023.10Centers for Medicare & Medicaid Services. Revised Guidance for Staff Vaccination Requirements No federal healthcare-worker vaccination mandate is currently in effect. State and employer requirements can still apply.
If a Vaccine Injures You
Federal law creates two separate no-fault compensation programs for vaccine injuries. Which one applies depends on the vaccine.
The National Vaccine Injury Compensation Program (VICP) covers most vaccines routinely recommended for children and pregnant women, including DTaP, MMR, polio, varicella, hepatitis A and B, HPV, seasonal influenza, meningococcal, pneumococcal conjugate, rotavirus, and Hib.11Health Resources & Services Administration. Covered Vaccines You file a petition with the U.S. Court of Federal Claims, and a special master reviews the evidence. If your claim succeeds, compensation can include unreimbursed medical and rehabilitation expenses (no cap), lost earnings, and up to $250,000 for pain and suffering. A vaccine-related death carries a $250,000 death benefit.12Office of the Law Revision Counsel. 42 USC Chapter 6A, Subchapter XIX – Vaccines Deadlines are strict: three years from the first symptom for an injury; for a death, two years from the death and within four years of the first symptom.13Health Resources & Services Administration. Who Can File a Petition
The Countermeasures Injury Compensation Program (CICP) covers vaccines and other products authorized under a public health emergency declaration, such as certain COVID-19 vaccines. It works very differently. The Department of Health and Human Services itself decides the claim; there is no court proceeding. The filing deadline is one year from the date you received the countermeasure. Medical benefits are uncapped, but lost wages are capped at $50,000 per year, and lost-income benefits stop at age 65. The CICP pays nothing for pain and suffering.14eCFR. Part 110 Countermeasures Injury Compensation Program15Health Resources & Services Administration. Comparison of Countermeasures Injury Compensation Program to the National Vaccine Injury Compensation Program
Knowing which program applies to your vaccine is important because the deadlines are short and non-negotiable, and because a lawsuit against the manufacturer is largely off the table. For VICP-covered vaccines, you must complete the VICP process before you can even attempt to sue. For products covered by a PREP Act declaration, courts must dismiss most liability claims outright; the only exception is willful misconduct, proved by clear and convincing evidence.16HHS ASPR. PREP Act Question and Answers
The Legal Risk of Fake Vaccination Records
Submitting a forged vaccination card to satisfy a mandate is a federal crime and, in most states, a state crime as well. Federal prosecutors have obtained convictions under fraud statutes, with defendants receiving prison time, supervised release, and fines. In one case involving 120,000 counterfeit cards, the lead defendant received a 12-month federal prison sentence and a $40,000 fine.17United States Department of Justice. Utah Fraudster Sentenced for Selling Fake COVID-19 Vaccination Record Cards If you have a genuine objection, the exemption process is the route that keeps you on the right side of the law.