Mayor Muriel Bowser, Mayor's Order 2021-097 (July 29, 2021), indoor mask requirement effective July 31, 2021, applied to schools and child care for 2021-22 (Ex. ECO-B-155)
Ballotpedia (secondary source), Ballotpedia, 'School responses to the coronavirus (COVID-19) pandemic during the 2021-2022 academic year' (Aug. 1, 2022) (Ex. ECO-B-107)
