https://www.mercurynews.com/2022/01/27/san-francisco-to-ease-mask-rule-as-covid-19-cases-fall/

San Francisco will be loosening it’s face mask requirement next month as COVID-19 cases driven by the super-contagious omicron variant fall in the city, Bay Area and state from a mid-January peak.

Starting Feb. 1, office San Francisco workers, gym members and other small, vaccinated and boosted “stable cohorts” of people may remove masks indoors again, reinstating the local mask exemption that was in place before the latest omicron surge.