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Why Your Exam Date Decides Whether You Need a Flu Shot for Your Green Card

ICIMR Clinical Review Board
August 16, 2026
5min read
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Most applicants preparing for their I-693 immigration medical exam focus on the fixed list — MMR, Tdap, hepatitis B, varicella — and assume every vaccine on the CDC schedule applies to them the same way, every time. The influenza vaccine is different. Whether a civil surgeon is required to give it to you depends entirely on the calendar date of your appointment, not on your age, health history, or where you’re filing from. Understanding that timing rule can save you a confusing conversation in the exam room and, in some cases, an unnecessary follow-up visit.

The Seasonal Rule Behind the Flu Vaccine Requirement

CDC’s Technical Instructions for Civil Surgeons — the binding guidance that governs every vaccine decision made during a Form I-693 exam — define an official flu season for immigration purposes: October 1 through March 31 each year. During that window, every applicant age 6 months and older is expected to receive a single dose of the current seasonal flu vaccine as part of their exam, the same way they’d be expected to receive an MMR or Tdap dose if their records show a gap. The logic mirrors the general principle behind every vaccine on the I-693 list: applicants for lawful permanent residency are held to the same immunization standard recommended for the general U.S. population at their age. Since the flu vaccine is reformulated and distributed annually rather than given once in a lifetime, CDC ties the requirement to the season instead of treating it as a permanent checkbox.

If Your Exam Falls Inside Flu Season

If your civil surgeon appointment lands between October 1 and March 31, expect the flu vaccine to be part of the visit unless you have a documented medical contraindication — a recorded allergy, for example, or another condition your civil surgeon determines makes the vaccine unsafe for you. Outside of that kind of documented exception, the civil surgeon administers the current season’s formulation and records it on Form I-693 like any other completed vaccination. There’s no separate application or waiver request needed on your end for a straightforward contraindication; the civil surgeon simply notes it on the form.

If Your Exam Falls Outside Flu Season

If your appointment happens in the months when the current season’s flu vaccine typically isn’t being distributed or administered, your civil surgeon isn’t expected to give it to you — and you aren’t expected to go find it elsewhere before your exam. In that situation, the civil surgeon documents that the flu vaccine wasn’t available at the time of the exam directly on Form I-693. This functions as a built-in, blanket exception: it doesn’t require a separate waiver filing, and it doesn’t hold up the rest of your paperwork. It’s simply how the form accounts for a vaccine that, unlike MMR or hepatitis B, isn’t on the shelf year-round.

What This Means When You’re Scheduling

For most applicants this isn’t something to plan around — you generally want your I-693 exam scheduled to fit your I-485 filing timeline, not the flu calendar. But it’s worth knowing what to expect walking in. If you’re booking an appointment in early autumn or late winter, budget time for the flu shot itself and ask your civil surgeon’s office whether the current season’s supply has arrived yet; formulations can lag slightly at the very start of the window. If you’re going in over the summer, don’t be surprised that the topic doesn’t come up at all — that’s the rule working as intended, not an oversight.

Exam timingFlu vaccine statusWhat goes on Form I-693
October 1 – March 31 (flu season)Required for applicants 6 months and olderVaccine administered and recorded, or a documented medical contraindication noted
Outside flu seasonNot required — vaccine typically unavailableCivil surgeon documents “not available,” a built-in blanket exception

Bring Your Records Either Way

Regardless of when your exam falls, bring whatever vaccination history you have — including any flu shots you’ve already received this season, whether from a pharmacy, a prior employer health program, or a doctor in another country. A civil surgeon reviewing acceptable documentation of a flu shot you already got this season won’t need to repeat it. Without that paperwork, the safest assumption from the civil surgeon’s side is that the dose hasn’t been given yet, which is one more reason thorough records matter as much for a seasonal vaccine as they do for the permanent ones on your I-693 checklist.

The flu vaccine is a small piece of the I-693 puzzle, but it’s a good example of how the exam isn’t just a static checklist — it’s applied against a real calendar. Applicants who understand that going in tend to have a smoother appointment and fewer surprises when the civil surgeon hands back a completed form.

IC

Written by

IMR Clinical Review Board

The IMR Clinical Review Board is Immigration Medical's internal editorial team, responsible for keeping this site's general health-information content accurate and current with USCIS policy. Medical accuracy of this content is reviewed by Diana Nieves Castro, MD -- see our medical review process for details.

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