https://www.siliconvalley.com/2021/06/17/covid-what-will-californias-vaccine-verification-system-look-like/

Don’t call it a “vaccine passport,” Gov. Gavin Newsom insists. But California is poised to roll out some sort of electronic vaccine verification system to help residents show businesses and others that they are inoculated against the coronavirus.

Promising more details in the coming days, Newsom earlier this week touted that the state is working on a digital version of the official paper immunization cards that people received when they got their shots. How the system will work, who will have access to it, and when it will launch are among the critical questions that the governor’s office did not respond to Wednesday.