California working on electronic vaccination-proof system, Newsom says

Gavin Newsom gives details on upcoming vaccine verification system

https://www.sfgate.com/politics/article/Gavin-Newsom-vaccine-passports-California-COVID-19-16246673.php

https://abc7.com/california-vaccine-passport-gov-gavin-newsom-vaccination-card-electronic-proof/10789709/

https://www.techwire.net/news/state-near-release-on-electronic-vaccine-verification-system