Guide · Students & Colleges

College vaccine requirements, explained.

Reviewed August 2026 · Based on the CDC / ACIP adult immunization schedule and the CDC recommendation on meningococcal vaccines. Educational reference, not medical advice.

Every U.S. college that participates in federal financial aid has some form of immunization requirement — but the specifics vary a lot. The good news: the underlying rules almost always come from the same source, the CDC/ACIP adult immunization schedule¹. If you know what ACIP says, you know most of what your college will ask for. What actually varies is which of those recommendations your state or your school has decided to mandate on top.

The core list — what almost every U.S. college requires

These five are effectively universal for degree-seeking students, especially those living on campus or entering healthcare programs:

MMR — two documented doses (or titer proof)

Colleges consider students at higher risk of measles, mumps, and rubella outbreaks because of dense-living conditions and out-of-state travel. Most require two documented doses of MMR, given at least 28 days apart, with the first dose on or after your first birthday². A single childhood dose is usually not sufficient. If your records are missing, a quantitative MMR IgG titer showing immunity to measles, mumps, and rubella is generally accepted as an alternative.

Varicella — two doses, or a titer, or a verified history of chickenpox

The ACIP schedule shows two doses of varicella for adults born in 1980 or later without other evidence of immunity. Colleges accept several forms of evidence: two doses of varicella vaccine, laboratory evidence of immunity (a positive titer), laboratory confirmation of prior disease, or — for classical chickenpox — a diagnosis or verification of a history of typical disease by a health-care provider³. Self-reported "I had chickenpox as a kid" without provider documentation is not considered adequate evidence at most schools; expect to be asked for a titer.

Meningococcal ACWY (MenACWY) — with a booster after age 16 if the last dose was earlier

This is the requirement most students miss. Adolescents receive MenACWY at age 11–12, then a booster at 16. If your last dose was given before age 16, you need another dose. First-year college students living in a dormitory are the specific ACIP-defined risk group; many states codify this requirement into their college-entry law. Confirm the dose was received on or after your 16th birthday.

Hepatitis B — full series (usually 3 doses)

Hep B is on the ACIP adult schedule for all adults 19–59 without documented immunity, and most colleges require the full three-dose series (or the newer two-dose Heplisav-B) at enrollment. Nursing, medical, dental, and other clinical programs additionally require a post-vaccination anti-HBs titer ≥ 10 mIU/mL confirming protection — see the healthcare worker guide for that.

Tdap — one dose in the last 10 years

ACIP recommends every adult receive 1 dose of Tdap if not previously received, then a Td or Tdap booster every 10 years¹. Most colleges accept any Td or Tdap booster within the last decade. A titer is not used for tetanus/diphtheria/pertussis.

The two "check your school's policy" additions

Meningococcal B (MenB) — shared clinical decision-making

MenB is separate from MenACWY. ACIP places it under shared clinical decision-making for young adults ages 19–23, especially first-year college students living in dorms. It is recommended for consideration, not universally required. Some universities require it (particularly after localized MenB outbreaks); many do not. Two doses are needed for full protection.

Influenza — usually required, sometimes optional

Annual flu vaccination is on the routine ACIP schedule for everyone 6 months and older. Many colleges — and virtually all clinical programs — require documentation of a flu shot for the current season (Sept 1 – March 31).

The pattern to remember: ACIP recommends, colleges require, states codify. When your school's checklist looks intimidating, it almost always maps to the same five or six ACIP recommendations. Verify each one is either documented in your records or provable via titer.

Living-arrangement rules that catch people off guard

• First-year students in dorms. This is the specific ACIP-defined higher-risk group for MenACWY. If your requirements letter mentions "residence hall" or "campus housing," expect MenACWY-on-or-after-16 to be enforced strictly.
• Nursing, medical, dental, PA, vet, and allied-health programs. These require substantially more — MMR/varicella/Hep B titers, seasonal flu shots, TB screening, and often COVID-19. See the healthcare worker guide.
• Study-abroad students. Add Hep A, typhoid, and destination-specific recommendations (yellow fever, Japanese encephalitis, rabies). Your school's travel clinic or the CDC Travelers' Health site is the reference.
• International students on F-1 or J-1 visas. Some schools apply the same standards as USCIS I-693 for immigration medical exams. See the USCIS guide.

What to submit, and how

Most colleges collect immunization records through a student health portal (CastleBranch, Med+Proctor, Immunify, or a school-specific system). You'll typically upload one of:

• An official immunization record from a healthcare provider, school, or your state immunization registry — see the state records directory.
• A quantitative titer report from a certified laboratory (Labcorp, Quest, or a hospital lab) for MMR, varicella, hepatitis A, or hepatitis B when records are missing.
• A completed provider form your school supplies, signed by a physician, PA, or NP.

If you receive a "record not accepted" message, the two most common causes are (a) a qualitative titer where the school required quantitative, and (b) a single MMR dose where the school required two.

If your records are lost

Start with your state's Immunization Information System — some states let you view records online directly, others require a written request. The state records directory lists every one. If your records still can't be produced, a titer is usually the fastest path: for MMR, varicella, hepatitis A, and hepatitis B, a titer proves immunity without redoing the vaccine series and is accepted by most schools.

Sources

1. CDC — Adult Immunization Schedule by Age (2025 / 2026 addendum).
2. CDC — Immunization of Health-Care Personnel, MMWR RR-7 (verbatim MMR and varicella immunity-evidence language).
3. CDC — Meningococcal Vaccination (MenACWY, MenB, MenABCWY).