Ballotpedia (secondary source; Burbio data), Ballotpedia, 'School responses to the coronavirus (COVID-19) pandemic during the 2020-2021 academic year' (July 8, 2021) (Ex. ECO-B-106)
Superior Court of the District of Columbia, Chief Judge Anita Josey-Herring, Superior Court Order by Chief Judge Josey-Herring (Amended 7/14/21) (July 14, 2021) (Ex. DC-059)
National Council on Independent Living (centers for independent living and disability-rights organizations), Organizer notice (July 19, 2021) (Ex. SEC-24-GM-019)
Mayor Muriel Bowser, Mayor's Order 2021-096 (July 24, 2021) (Ex. DC-021)
Mayor Muriel Bowser, Mayor's Order 2021-097 (July 29, 2021) (Ex. DC-057)
Mayor Muriel Bowser (Executive Office of the Mayor), COVID Situational Update Presentation, July 29, 2021 (Ex. DC-074)
DC Health (Department of Health), DC Health, Coronavirus 2019 (COVID-19): Mask Guidance for the General Public (last updated July 30, 2021) (Ex. DC-077)
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)
