Washington Metropolitan Area Transit Authority, WMATA, 'COVID-19 Information: Service Changes due to the public health emergency' (page as of May 13, 2020) (Mar. 16, 2020) (Ex. ECO-B-099)
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)
