| Ex. DC-083 | OSSE, Child Care Provider Closures and Public Funding (issued March 13, 2020)Child Care Provider Closures and Public Funding | Office of the State Superintendent of Education (OSSE) | District of ColumbiaSector regulator | Mar. 13, 2020 | 2020 Q2 | Business closureSchools and child care | Primary source read | |
| Ex. DC-005 | Mayor's Order 2020-053Closure of Non-Essential Businesses and Prohibition on Large Gatherings During Public Health Emergency for the 2019 Novel Coronavirus… | Mayor Muriel Bowser | District of ColumbiaState | Mar. 24, 2020 | 2020 Q2 | Business closureTelework mandateGathering capSchools and child careEvents and venuesWorkplace rules | Primary source read | |
| Ex. DC-053 | DC Health, COVID-19 Guidance for Childcare Reopening (May 25, 2020)Guidance for Childcare Reopening | DC Health | District of ColumbiaSector regulator | May 25, 2020 | 2020 Q2 | Schools and child careWorkplace rules | Primary source read | |
| Ex. DC-079 | Mayor's Order 2020-075Phase Two of Washington, DC Reopening | Mayor Muriel Bowser | District of ColumbiaState | June 19, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q2 | Business closureTelework mandateCapacity limitGathering capFace-covering requirementSchools and child careHealth care ordersEvents and venuesWorkplace rules | Primary source read | |
| Ex. ECO-B-105 | Ballotpedia, 'School responses to the coronavirus (COVID-19) pandemic during the 2019-2020 academic year'State-by-State chronology of spring 2020 school closure orders and announcements, with total students affected per State (NCES) | Ballotpedia (secondary source; student counts from NCES) | United States (50 States and D.C.)Other | June 30, 2020 | 2020 Q2 | Schools and child care | Confirmed from a secondary source | |
| Ex. DC-080 | Mayor's Order 2020-123Modified Requirements Relating to Physical Activity to Combat Escalation of COVID-19 Pandemic During Phase Two | Mayor Muriel Bowser | District of ColumbiaState | Dec. 7, 2020 | 2020 Q42021 Q12021 Q2 | Gathering capSchools and child careEvents and venues | Primary source read | |
| Ex. DC-051 | DC Health, Phase 2 Schools Reopening Guidance (March 1, 2021)Phase 2 Schools Reopening Guidance | DC Health | District of ColumbiaSector regulator | Mar. 1, 2021 | 2021 Q12021 Q2 | Face-covering requirementSchools and child careWorkplace rulesQuarantine and isolation | Primary source read | |
| Ex. DC-071 | Situational Update Presentation, March 15, 2021COVID-19 Situational Update (Phase Two modifications effective March 22, 2021) | Mayor Muriel Bowser (Executive Office of the Mayor) | District of ColumbiaState | Mar. 15, 2021 | 2021 Q12021 Q2 | Capacity limitGathering capSchools and child careAlcohol and barsEvents and venues | Primary source read | |
| Ex. ECO-B-106 | Ballotpedia, 'School responses to the coronavirus (COVID-19) pandemic during the 2020-2021 academic year'State-by-State chronology of 2020-21 reopening orders, statewide closures (Kentucky Nov. 23, 2020; Michigan Nov. 18, 2020), in-person… | Ballotpedia (secondary source; Burbio data) | United States (50 States and D.C.)Other | July 8, 2021 | 2020 Q32020 Q42021 Q12021 Q2 | Schools and child care | Confirmed from a secondary source | |
| Ex. DC-057 | Mayor's Order 2021-097Resumption of Mask Requirements and Delegations of Authority to the Department of Health and the Office of the State Superintendent of… | Mayor Muriel Bowser | District of ColumbiaState | July 29, 2021 | 2021 Q3 | Face-covering requirementSchools and child careWorkplace rules | Primary source read | |
| Ex. DC-074 | COVID Situational Update Presentation, July 29, 2021COVID-19 Situational Update (indoor mask resumption; school-year 2021-22 rules) | Mayor Muriel Bowser (Executive Office of the Mayor) | District of ColumbiaState | July 29, 2021 | 2021 Q3 | Face-covering requirementSchools and child careVaccination or testing | Primary source read | |
| Ex. ECO-B-155 | Mayor's Order 2021-097 (July 29, 2021), indoor mask requirement effective July 31, 2021, applied to schools and child care for 2021-22District of Columbia indoor and school mask requirement, 2021-22 (schools to Mar. 8, 2022) | Mayor Muriel Bowser | District of ColumbiaState | July 29, 2021 | 2021 Q3 | Face-covering requirementSchools and child care | Primary source read | |
| Ex. DC-076 | COVID-19 Situational Update Presentation, September 20, 2021COVID-19 Situational Update (vaccination requirements for school and child care personnel and student athletes; District employee deadline… | Mayor Muriel Bowser (Executive Office of the Mayor) | District of ColumbiaState | Sept. 20, 2021 | 2021 Q3 | Schools and child careWorkplace rulesVaccination or testingQuarantine and isolation | Primary source read | |
| Ex. ECO-B-107 | Ballotpedia, 'School responses to the coronavirus (COVID-19) pandemic during the 2021-2022 academic year'State-by-State table of 2021-22 school mask requirements and bans (instrument type and end date) and teacher/staff vaccination requirements… | Ballotpedia (secondary source) | United States (50 States and D.C.)Other | Aug. 1, 2022 | 2021 Q3 | Face-covering requirementSchools and child careVaccination or testing | Confirmed from a secondary source | |