There are now nine California counties in the yellow tier, which indicates "minimal" risk.

San Mateo and Mono counties moved to the yellow tier and Madera to orange in this weeks reassignment of COVID-19 restriction status.
The looser restrictions will take effect Wednesday, May 12.
There ...

https://www.mercurynews.com/2021/05/11/map-of-california-covid-tiers-2-more-into-yellow/

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