| Ex. DC-002 | Mayor's Order 2020-046Declaration of Public Health Emergency: Coronavirus (COVID-19) | Mayor Muriel Bowser | District of ColumbiaState | Mar. 11, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Emergency declarationQuarantine and isolation | Primary source read | |
| Ex. DC-067 | DC Health, Long-Term Care Phased Guidance (June 12, 2020)Long-Term Care Phased Guidance | DC Health | District of ColumbiaSector regulator | June 12, 2020 | 2020 Q22020 Q32020 Q4 | Health care ordersWorkplace rulesQuarantine and isolation | Primary source read | |
| Ex. DC-081 | Mayor's Order 2020-081Requirement to Self-Quarantine After Non-Essential Travel During the COVID-19 Public Health Emergency | Mayor Muriel Bowser | District of ColumbiaState | July 24, 2020 | 2020 Q32020 Q4 | Travel and quarantineQuarantine and isolation | Primary source read | |
| Ex. ECO-C-030 | Mayor's Order 2020-081 (and Mayor's Order 2020-110, Nov. 6, 2020)Requirement to self-quarantine after non-essential travel to high-risk areas during COVID-19 | Mayor Muriel Bowser | District of ColumbiaCity | July 24, 2020 | 2020 Q32020 Q42021 Q1 | Travel and quarantineQuarantine and isolation | Confirmed from a secondary source | |
| Ex. DC-012 | Mayor's Order 2020-110Modified Requirements Regarding Self-Quarantines, Testing, and Travel During the COVID-19 Public Health Emergency | Mayor Muriel Bowser | District of ColumbiaState | Nov. 6, 2020 | 2020 Q42021 Q12021 Q2 | Travel and quarantineWorkplace rulesQuarantine and isolation | Primary source read | |
| Ex. DC-049 | DC Health, Guidance for Quarantine after COVID-19 Exposure (last updated December 10, 2020)Guidance for Quarantine after COVID-19 Exposure | DC Health | District of ColumbiaSector regulator | Dec. 10, 2020 | 2020 Q42021 Q12021 Q22021 Q3 | Workplace rulesQuarantine and isolation | Primary source read | |
| Ex. DC-050 | DC Health, COVID-19 Guidance for Travel (last updated December 14, 2020)Guidance for Travel | DC Health | District of ColumbiaSector regulator | Dec. 14, 2020 | 2020 Q42021 Q12021 Q2 | Travel and quarantineQuarantine and isolation | Primary source read | |
| Ex. DC-048 | DC Health, Phase 2 Long Term Care Guidance (December 24, 2020)Phase 2 Long Term Care Guidance | DC Health | District of ColumbiaSector regulator | Dec. 24, 2020 | 2020 Q42021 Q12021 Q2 | Face-covering requirementHealth care ordersWorkplace rulesQuarantine and isolation | 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-016 | Mayor's Order 2021-038Extension of the Public Emergency and Public Health Emergency and Modified Measures in Phase Two of Washington, DC Reopening | Mayor Muriel Bowser | District of ColumbiaState | Mar. 17, 2021 | 2021 Q12021 Q2 | Emergency declarationBusiness closureTelework mandateCapacity limitGathering capFace-covering requirementTravel and quarantineCurfew and hoursAlcohol and barsEvents and venuesWorkplace rulesQuarantine and isolation | 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. SEC-04-059 | Mayor's Order 2021-099COVID-19 Vaccination Certification Requirement for District Government Employees, Contractors, Interns, and Grantees | Mayor Muriel Bowser | District of ColumbiaCity | Aug. 10, 2021 | 2021 Q3 | Workplace rulesVaccination or testing | 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. DC-075 | COVID Situational Update Presentation, August 16, 2021COVID-19 Situational Update (vaccination requirements for District health professionals) | Mayor Muriel Bowser and DC Health | District of ColumbiaSector regulator | Aug. 16, 2021 | 2021 Q3 | Health care ordersWorkplace rulesVaccination or testing | Primary source read | |
| Ex. DC-022 | Mayor's Order 2021-119Extension of Public Emergency | Mayor Muriel Bowser | District of ColumbiaState | Oct. 7, 2021 | | Emergency declarationVaccination or testing | Primary source read | |
| Ex. AGY-FED-LANDS-SCIENCE-COURTS-008 | Administrative Order No. 2021-02Washington, D.C. Courthouse Access | Chief Judge Maurice B. Foley | United States Tax Court (Washington, D.C. courthouse)Court | Oct. 5, 2021 | | Capacity limitCourts and public officesVaccination or testing | Primary source read | |
| Ex. DC-058 | Mayor's Order 2021-148Vaccination Requirement for Entrance into Certain Indoor Establishments and Facilities | Mayor Muriel Bowser | District of ColumbiaState | Dec. 22, 2021 | | Vaccination or testingOther | 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 | |