Yellow fever certificate for China: who needs one, and when it is checked

The short answer

If your journey to mainland China starts in, or passes through an airport for more than 12 hours in, a country that WHO lists as having yellow fever transmission risk, you must be able to show a yellow fever vaccination certificate on arrival if you are 9 months old or over. If you fly directly from a country with no such risk, none of the official pages we retrieved asks you for one. [1] [2] [3]

The certificate is checked by Chinese customs health quarantine at the port, not by the airline at check-in: the customs service guide says all entrants pass temperature monitoring and medical patrol, and that people arriving from yellow-fever-endemic countries must present their vaccination certificate. [5] This is desk research checked on 24 September 2026. It is not a ruling on your itinerary, and it does not replace the official list you should read close to your travel date: the CDC China traveler page, the NaTHNaC China page and the UK entry-requirements page all publish their own version of the same rule.

1. The trigger is where you came from, not the passport you hold

None of the four traveller-facing sources frames this as a nationality rule. CDC splits it into two lines: direct travel from the United States does not require the vaccine, while travel from countries with risk for YF virus transmission requires it for travellers aged 9 months or older. [1] NaTHNaC says the same in one sentence, and adds that there is no yellow fever risk in China itself. [2] The UK government puts it as a condition on origin: you must have a certificate if you are coming from a country listed as a transmission risk. [4]

This matters for how you read your own itinerary. A European passport, an American passport or an Australian passport is not what triggers the check; the route is. Two travellers on the same aircraft can be treated differently because one boarded in a risk country and the other did not, and the WHO list is the reference both the guidance pages and the border use. The WHO annex shows China in the column for travellers arriving from countries determined to be at risk, aged 9 months or over, and leaves China's "any country" column empty. [3]

2. What counts as proof, and the two thresholds people get wrong

Age. The published threshold is 9 months: CDC, NaTHNaC and the WHO annex all state it. A baby younger than that is outside the requirement as published, and nothing we retrieved says how an officer handles a family that nonetheless arrives without one. [1] [3]

The 12-hour transit. CDC states the requirement includes airport transits or layovers of more than 12 hours in a risk country; NaTHNaC says transited for more than 12 hours through an airport of a country with risk. [1] [2] A five-hour connection is outside the wording; a 13-hour overnight connection inside a risk country is inside it. Neither page tells you how partial hours, missed connections or a change of airport are treated, so a tight itinerary should be resolved with the carrier and the Chinese embassy rather than from these pages.

Validity. NaTHNaC records that, according to WHO, from 11 July 2016 the yellow fever certificate is valid for the life of the person vaccinated. [2] A certificate you obtained years ago is therefore not the problem; a certificate issued too late for the rule, or an entry in a booklet that does not match your passport, is.

3. What happens at the port

The customs procedure page describes the flow in its own words: every entrant and departurer undergoes temperature monitoring and medical patrol, people with fever or other discomfort must volunteer their health status, and people arriving from yellow-fever-endemic countries must present their vaccination certificate. [5] People listed in Article 102 of the Implementing Rules of the Frontier Health and Quarantine Law must present a health certificate, and anyone found with a fever is sent to a medical screening room for further examination.

That page is a service guide: it tells you what the inspection is, not how often the certificate is requested, not which countries China currently treats as endemic, and not what happens if you cannot produce one. We did not find an official page that publishes those three things in retrievable text, so this guide does not supply them.

4. Where the official pages disagree, or stop

The sources are consistent on the substance but not on the frame, and the difference is worth seeing rather than smoothing over. CDC writes in terms of departure from the United States, which is a presentation choice for its own readers. [1] WHO publishes a table whose China row applies to arrivals from listed risk countries and shows nothing for the "any country" column. [3] The customs page speaks about people coming from yellow-fever-endemic countries without printing the list. [5] None of them quotes the Chinese instrument that authorises the check, and none of the pages carries a current Chinese-language announcement naming the countries in scope.

There is a second gap. CDC states that travellers with itineraries limited to Hong Kong SAR or Macao SAR are exempt from the requirement, while NaTHNaC notes that certificate requirements for the two SARs were not provided in 2022 and are presumed to be the same as for China. [1] [2] Those two statements are not the same claim, and neither one settles how a Hong Kong-to-Shenzhen hop is treated.

5. What to do while you still have choices

Read the requirement against your actual route, including every stop of more than 12 hours, before you book anything non-refundable. If your route touches a risk country, ask a travel clinic about the certificate and about the timing; and keep the original certificate with your passport rather than a photo of it, because the customs page asks for the certificate at the port. [5] If your route does not touch a risk country, the pages we retrieved do not ask you for anything, and you should not buy a certificate you were never required to hold.

What this guide does not establish

We did not enter China, we did not present a certificate, and no border officer confirmed anything for us. This page does not list the countries China treats as yellow-fever-endemic, because we could not retrieve that list as official text; it does not decide whether your particular connection counts as 12 hours; it gives no guarantee of admission; and it does not address yellow fever requirements that other countries impose on you after you leave China. Where two official pages frame the rule differently, both framings are shown above and neither is presented as the final word. For the Chinese edition of this page, see the Chinese edition.