| Ex. ECO-B-050 | Education Week, 'Map: Coronavirus and School Closures in 2019-2020' (Mar. 6, 2020; updated Oct. 13, 2021)Map: Coronavirus and School Closures in 2019-2020 (at their peak the closures affected at least 55.1 million students in 124,000 U.S. public… | Education Week (secondary source) | United States (all States)Other | Mar. 6, 2020 | 2020 Q2 | Schools and child care | Confirmed from a secondary source | |
| Ex. MET-IND-070 | Press release: IndyGo implements rear boarding and reduces scheduled service as a direct response to COVID-19IndyGo - rear-door boarding, fare suspension, Saturday-level service Monday through Saturday, retail desk closed, paratransit one rider per… | IndyGo (Indianapolis Public Transportation Corporation) | Indianapolis Public Transportation Corporation (IndyGo), Marion CountyOther | Mar. 26, 2020 | 2020 Q2 | Business closureSupply chainOther | Primary source read | |
| Ex. MET-IND-073 | Press release: IndyGo postpones implementation of new route network as part of COVID-19 responseIndyGo Board - new route network postponed; Saturday-level service and fare suspension continued (April 24, 2020) | IndyGo Board of Directors | IndyGo, Marion CountyOther | Apr. 24, 2020 | 2020 Q2 | Supply chainOther | 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. SEC-15-001 | School responses to the coronavirus (COVID-19) pandemic during the 2019-2020 academic year (State-by-State closure chronology)School responses to the coronavirus (COVID-19) pandemic during the 2019-2020 academic year | Ballotpedia (Lucy Burns Institute) | United States (fifty States)Other | June 30, 2020 | 2020 Q2 | Schools and child care | Confirmed from a secondary source | |
| Ex. SEC-15-002 | School responses to the coronavirus (COVID-19) pandemic during the 2020-2021 academic year (State reopening regimes, mid-year closures, return orders, monthly status)School responses to the coronavirus (COVID-19) pandemic during the 2020-2021 academic year | Ballotpedia | United States (fifty States)Other | June 30, 2021 | 2020 Q32020 Q42021 Q12021 Q2 | Face-covering requirementSchools and child careEvents and venues | Confirmed from a secondary source | |
| 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. ECO-B-117 | Education Week, 'Which States Banned Mask Mandates in Schools, and Which Required Masks?' (Aug. 20, 2021; updated July 8, 2022; last data May 23, 2022)States requiring masks in schools in 2021-22 (18 States and D.C.) and States banning school mask mandates (11) | Education Week (secondary source) | United States (all States)Other | Aug. 20, 2021 | 2021 Q3 | Face-covering requirementSchools and child care | Confirmed from a secondary source | |
| Ex. MS-055 | Press report (Mississippi Today, Nov. 11, 2021) of the Governor's announcement that the COVID-19 State of Emergency would expire November 20, 2021Gov. Tate Reeves announces COVID-19 state of emergency will expire on Nov. 20 (Mississippi Today, Nov. 11, 2021) | Governor Tate Reeves (reported by Mississippi Today) | MississippiOther | Nov. 11, 2021 | 2021 Q3 | Emergency declarationHealth care orders | Confirmed from a secondary source | |
| 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 | |
| Ex. SEC-15-003 | School responses to the coronavirus (COVID-19) pandemic during the 2021-2022 academic year (school mask requirements and bans, staff and student vaccine requirements, litigation)School responses to the coronavirus (COVID-19) pandemic during the 2021-2022 academic year | Ballotpedia | United States (fifty States)Other | Aug. 1, 2022 | 2021 Q3 | Face-covering requirementSchools and child careVaccination or testingQuarantine and isolation | Confirmed from a secondary source | |