https://www.mercurynews.com/2020/08/04/coronavirus-san-mateo-county-to-impose-fines-for-violating-mask-social-distancing-rules/

REDWOOD CITY — San Mateo County has joined the growing list of Bay Area counties to back up mask and other health mandates with stiff fines to curb the spread of the coronavirus.

Anyone caught face-free in public areas where masks are required could face fines up to $500 per violation, the county’s Board of Supervisors unanimously decided Tuesday.