Los Angeles County begins mandating face masks for all people who attend outdoor "mega-events" of more than 10,000 people such as open-air concert and sporting events regardless of their vaccination status. 2021-08-20
Illinois Governor J. B. Pritzker issues a vaccine mandate for healthcare workers, as well as a mask mandate for schools and indoor sporting events. 2021-08-4
California will require face masks in schools despite CDC guidelines saying that vaccinated students are not required to wear a mask. 2021-07-9
Philadelphia lifts its mask mandate and COVID-19 restrictions. However, people who are not fully vaccinated are encouraged to wear masks. 2021-06-11