The mandate is similar to the one the city instituted for much of 2020.
Like nearly everywhere in the country, COVID-19 cases have skyrocketed in Chicago and Illinois as the Delta variant spreads and many people refuse to be vaccinated.
Thousands Of CPS Students Returning To School Monday Amid New Indoor Mask Mandate, Vaccine Requirement
CBS 2 Chicago
Thousands of Chicago Public School students return to school next week amid a new statewide COVID safety requirement.
