| Ex. DC-003 | Mayor's Order 2020-048Prohibition on Mass Gatherings During Public Health Emergency - Coronavirus (COVID-19) | Mayor Muriel Bowser | District of ColumbiaState | Mar. 16, 2020 | 2020 Q2 | Business closureGathering capAlcohol and barsEvents and venues | Primary source read | |
| Ex. ECO-B-099 | WMATA, 'COVID-19 Information: Service Changes due to the public health emergency' (page as of May 13, 2020)WMATA COVID-19 service changes: reduced Metrorail and Metrobus service, station closures and rear-door boarding during the public health… | Washington Metropolitan Area Transit Authority | District of Columbia, Maryland, Virginia (Washington Metropolitan Area Transit Authority)State | Mar. 16, 2020 | 2020 Q2 | Travel and quarantineOther | Primary source read | |
| Ex. AGY-ST-TRANSPORT-PORTS-TRANSIT-001 | MDOT MTA 'Coronavirus Updates' service-status notice, last updated Mar. 17, 2020 7:00 p.m.: system-wide service reductions effective Mar. 18, 2020; rear-door boarding on all bus routes; Transit Store and Reduced Fare Certification Office closed from Mar. 16Coronavirus Updates - Service Status (service reductions on all vehicle modes effective Wednesday, March 18) | Maryland Department of Transportation, Maryland Transit Administration (MDOT MTA) | Maryland (Baltimore region; MARC Penn, Camden and Brunswick Lines to Washington, D.C. and Martinsburg, W. Va.)State | Mar. 17, 2020 | 2020 Q22020 Q3 | Travel and quarantineCourts and public officesOther | Primary source read | |
| Ex. DC-004 | Mayor's Order 2020-051Prohibition on Mass Gatherings During Public Health Emergency - Coronavirus (COVID-19) | Mayor Muriel Bowser | District of ColumbiaState | Mar. 20, 2020 | 2020 Q2 | Business closureGathering capAlcohol and barsEvents and venues | Primary source read | |
| Ex. DC-006 | Mayor's Order 2020-054Stay at Home Order | Mayor Muriel Bowser | District of ColumbiaState | Mar. 30, 2020 | 2020 Q2 | Stay-at-homeBusiness closureTelework mandateGathering capTravel and quarantineWorkplace rules | Primary source read | |
| Ex. DC-064 | DC Health, Phase Two Guidance for Restaurants (June 18, 2020)Phase Two Guidance for Restaurants | DC Health | District of ColumbiaSector regulator | June 18, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q2 | Capacity limitFace-covering requirementAlcohol and barsWorkplace rules | 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-078 | ABRA, Phase Two New Modifications: Allowance and Prohibitions Overview (winter 2020-21 edition, posted through March 2021)Phase Two New Modifications - Allowance and Prohibitions Overview | Alcoholic Beverage Regulation Administration (ABRA) | District of ColumbiaSector regulator | Dec. 14, 2020 | 2020 Q42021 Q1 | Capacity limitCurfew and hoursAlcohol and bars | Primary source read | |
| Ex. DC-013 | Mayor's Order 2020-119Modified Requirements to Combat Escalation of COVID-19 Pandemic During Phase Two | Mayor Muriel Bowser | District of ColumbiaState | Nov. 23, 2020 | 2020 Q42021 Q1 | Telework mandateCapacity limitGathering capCurfew and hoursAlcohol and barsEvents and venuesWorkplace rules | Primary source read | |
| Ex. DC-046 | DC Health, Phase Two Revised Hotels Guidance (December 14, 2020)Phase Two Revised Hotels Guidance | DC Health | District of ColumbiaSector regulator | Dec. 14, 2020 | 2020 Q42021 Q12021 Q2 | Capacity limitFace-covering requirementTravel and quarantineWorkplace rules | 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-052 | Phase 2 Violations list (posted March 2, 2021)COVID-19 Phase Two violations and enforcement actions, July 2020 - February 2021 | DC Health (with the ABC Board, DCRA and the Office of the Attorney General) | District of ColumbiaSector regulator | Mar. 2, 2021 | 2020 Q32020 Q42021 Q1 | Capacity limitFace-covering requirementCurfew and hoursAlcohol and barsWorkplace rules | 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-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. DC-072 | Situational Update Presentation, April 26, 2021COVID-19 Situational Update (modifications effective May 1, 2021) | Mayor Muriel Bowser (Executive Office of the Mayor) | District of ColumbiaState | Apr. 26, 2021 | 2021 Q2 | Capacity limitGathering capAlcohol and barsEvents and venues | 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 | |