California Gov. Gavin Newsom on Thursday signed a statewide executive order that requires people to wear face coverings in indoor settings and outside when social distancing is not feasible.
“There is scientific evidence to suggest that use of cloth face coverings by the public during a pandemic could help reduce disease transmission. Their primary role is to reduce the release of infectious particles into the air when someone speaks, coughs, or sneezes, including someone who has COVID-19 but feels well,” his office said (pdf).