The counties of Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Sonoma, and
the City of Berkeley will lift the indoor masking requirement in public spaces not subject to state and
federal masking rules when all the following occur:
• The jurisdiction reaches the moderate (yellow) COVID-19 transmission tier, as defined by the
Centers for Disease Control & Prevention (CDC), and remains there for at least three weeks; AND
• COVID-19 hospitalizations in the jurisdiction are low and stable, in the judgment of the health
officer; AND
• 80% of the jurisdiction’s total population is fully vaccinated with two doses of Pfizer or Moderna or
one dose of Johnson & Johnson (booster doses not considered)
OR
Eight weeks have passed since a COVID-19 vaccine has been authorized for emergency use by
federal and state authorities for 5- to 11-year-olds
Most Bay Area health departments issued the masking requirements for their respective jurisdictions on
August 3, following a summer surge in cases, hospitalizations, and deaths.
But with regional data showing that the surge is now receding, and with the Bay Area one of the most
vaccinated regions in the country, the health officers agree it is time to plan for a transition.
Lifting a local indoor mask mandate would not prevent businesses, nonprofits, churches, or others with
public indoor spaces from imposing their own requirements. As COVID-19 easily spreads through airborne
droplets, face coverings remain highly powerful in preventing its spread.
Each jurisdiction will rescind its order when criteria are met in that respective county or city. The criteria
were developed to assist in determining the safest time to lift the indoor masking orders, based on regiona