Report Vaccinated In The US in Ajijic/Chapala/Guadalajara Posted 4 hours ago 5 hours ago, Mostlylost said: The US federal government does not have a national registry. The official federal proof of vaccination is the handwritten card given at the time you receive your vac. If you open a Walmart pharmacy account and receive your vac there you can download your record from them. Otherwise your card is the proof as it is for over 200 million people vaccinated in the US. And, if you have lost that card?