Apple Health Vaccine Record and VAMS/CDC

That’s correct. It only works with corporate and private health providers. What the backwards VAMS system generates isn’t a validation code, it just brings up the website for you to log in.

Canada and the EU have verifiable government proof QRcodes. The US is embarrassingly inept. I suggest getting your booster from a drugstore chain that provides digital proof to make international travel easier.

It appears that the QR code you receive is not a verifiable vaccine record. Learn more at https://www.cdc.gov/vaccines/covid-19/reporting/vams/professional/QRS-access-vaccination-certificates.html

I find this to be quite frustrating as I was forced to use VAMS in early 2021