| Ex. MET-DEN-035 | Husch Blackwell 'Colorado: State-by-State COVID-19 Guidance' tracker (live page rendered Sept. 26, 2026; updates through Apr. 15, 2021)Colorado State-by-State COVID-19 Guidance | Husch Blackwell LLP (law-firm tracker) | Colorado (statewide tracker with Denver entries)Sector regulator | Apr. 15, 2021 | | Other | Confirmed from a secondary source | |
| Ex. AGY-ST-LABOR-WORKPLACE-037 | Nevada OSHA Updated Guidance for Business Operations under the State of Nevada's Declaration of Emergency - Directive 044 (Apr. 26, 2021)Updated Guidance for Business Operations under Directive 044 (county mitigation plans; face coverings; distancing) | Nevada OSHA, Division of Industrial Relations | Nevada; Nevada OSHA, Division of Industrial RelationsSector regulator | Apr. 26, 2021 | 2021 Q2 | Capacity limitFace-covering requirementWorkplace rules | Confirmed from a secondary source | |
| Ex. AGY-ST-AGRICULTURE-PARKS-WILDLIFE-062 | Emergency rule WSR 21-11-016, WAC 246-358-002 as revised (vaccination-status revisions to the temporary worker housing COVID-19 requirements)Emergency Rules, Department of Health, Chapter 246-358 WAC, Temporary Worker Housing (WSR 21-11-016) | Washington State Department of Health | Washington State Department of Health (State agency)Sector regulator | May 7, 2021 | 2021 Q2 | Capacity limitFace-covering requirementWorkplace rulesVaccination or testingQuarantine and isolation | Confirmed from a secondary source | |
| Ex. AGY-ST-AGRICULTURE-PARKS-WILDLIFE-063 | Emergency rule WSR 21-11-012, WAC 296-307-16102 as revised (vaccination-status revisions)Emergency Rules, Department of Labor and Industries, Chapter 296-307 WAC, Temporary Worker Housing (WSR 21-11-012) | Washington State Department of Labor and Industries | Washington State Department of Labor and Industries (State agency)Sector regulator | May 7, 2021 | 2021 Q2 | Capacity limitFace-covering requirementWorkplace rulesVaccination or testingQuarantine and isolation | Confirmed from a secondary source | |
| Ex. LA-073 | BESE emergency rule revision of May 12, 2021 - face covering policy; expiration of minimum standards June 30, 2021BESE revises minimum COVID-19 school safety standards to clarify face covering policy | Louisiana State Board of Elementary and Secondary Education | LouisianaSector regulator | May 12, 2021 | 2021 Q2 | Face-covering requirementSchools and child care | Confirmed from a secondary source | |
| Ex. MI-074 | MIOSHA Emergency Rules: Coronavirus Disease 2019 (COVID-19), as amended May 24, 2021Amended MIOSHA COVID-19 Emergency Rules of May 24, 2021 (remote-work requirement removed; sector rules replaced by CDC-based rules) | MIOSHA, Department of Labor and Economic Opportunity | MichiganSector regulator | May 24, 2021 | 2021 Q2 | Face-covering requirementWorkplace rules | Confirmed from a secondary source | |
| Ex. SEC-12-082 | ABA Profile of the Legal Profession 2021ABA Profile of the Legal Profession 2021 (July 2021) | American Bar Association | United StatesSector regulator | July 1, 2021 | | Other | Confirmed from a secondary source | |
| Ex. MET-DEN-034 | RTD release: Mask Mandate Still In EffectMask Mandate Still In Effect (RTD news release PDF, July 14, 2021) | RTD | Regional Transportation DistrictSector regulator | July 15, 2021 | 2021 Q3 | Face-covering requirementTravel and quarantine | Confirmed from a secondary source | |
| Ex. WA-076 | DOH 820-105, K-12 COVID-19 Requirements for Summer 2021 and the 2021-2022 School Year (later retitled Requirements and Guidance to Mitigate COVID-19 Transmission in K-12 Schools)K-12 COVID-19 Requirements for Summer 2021 and the 2021-2022 School Year | Washington State Department of Health (incorporated by Proclamation 20-09.4) | WashingtonSector regulator | July 28, 2021 | 2021 Q3 | Face-covering requirementSchools and child careQuarantine and isolation | Confirmed from a secondary source | |
| Ex. MET-CHI-051 | Metra COVID-19 operating rules: mask mandate and alternate schedules (agency page as archived Aug. 2, 2021)Metra - Coronavirus: face coverings required; alternate weekday and Sunday/holiday weekend schedules | Commuter Rail Division of the Regional Transportation Authority (Metra) | Metra commuter rail service area (Cook and the five collar counties)Sector regulator | Aug. 2, 2021 | 2021 Q3 | Face-covering requirementTravel and quarantineOther | Confirmed from a secondary source | |
| Ex. SEC-15-086 | OAR 333-019-1015 (Aug. 2, 2021; masking requirements for K-12 schools, public and private) and OAR 333-019-1030 (Aug. 25, 2021; COVID-19 vaccination requirement for teachers and school staff by Oct. 18, 2021)OHA temporary rules: K-12 masking (333-019-1015) and school staff vaccination (333-019-1030) | Oregon Health Authority, Public Health Division | OregonSector regulator | Aug. 2, 2021 | 2021 Q3 | Face-covering requirementSchools and child careVaccination or testing | Confirmed from a secondary source | |
| Ex. SEC-15-068 | Emergency Orders adding mask requirements to 14 Del. Admin. Code 933 (Early Care and Education and School-Age Centers), 934 (Family and Large Family Child Care Homes), 938 (Youth Camps, new section 5.3), 815 and 105 (published 25 Del. Reg. 227-244, Sept. 1, 2021)OCCL emergency mask orders for child care and youth camps | Delaware Department of Education, Office of Child Care Licensing | DelawareSector regulator | Aug. 13, 2021 | 2021 Q3 | Face-covering requirementSchools and child care | Confirmed from a secondary source | |
| Ex. NJ-082 | Executive Directive No. 21-011 (5th Revision, August 21, 2025)Protocols for COVID-19 reporting for school settings (vaccination and testing data reporting under EOs 253 and 264) | New Jersey Department of Health (Acting Commissioner Jeffrey A. Brown for the 2025 revision) | New JerseySector regulator | Sept. 14, 2021 | | Schools and child careVaccination or testingOther | Confirmed from a secondary source | |
| Ex. MET-CLE-042 | Federal Mask Mandate for Public Transportation Extended to Jan. 18, 2022 (GCRTA release, Aug. 24, 2021)Federal Mask Mandate for Public Transportation Extended to Jan. 18, 2022 | Greater Cleveland Regional Transit Authority | Cuyahoga County, Ohio (GCRTA service area)Sector regulator | Aug. 24, 2021 | 2021 Q3 | Face-covering requirementTravel and quarantine | Confirmed from a secondary source | |
| Ex. SEC-15-081 | DESE mask requirement for all public K-12 students, staff and visitors for 2021-22 (issued Aug. 25, 2021; extended Sept. 27, Oct. 26, 2021 and Jan. 10, 2022)DESE universal mask requirement (Aug. 25, 2021) | Commissioner of Elementary and Secondary Education Jeffrey C. Riley, under authority voted by the Board of Elementary and Secondary Education Aug. 24, 2021 | MassachusettsSector regulator | Aug. 25, 2021 | 2021 Q3 | Face-covering requirementSchools and child care | Confirmed from a secondary source | |
| Ex. SEC-15-087 | Emergency regulations: 10 NYCRR 2.60 (Aug. 27, 2021; universal masking in all public and private P-12 schools) and 10 NYCRR 2.62 (Sept. 2, 2021; weekly testing of unvaccinated school personnel)NYSDOH emergency regulations 2.60 and 2.62 | New York State Department of Health (Commissioner Howard Zucker, M.D., on direction of Governor Kathy Hochul) | New YorkSector regulator | Aug. 27, 2021 | 2021 Q3 | Face-covering requirementSchools and child careVaccination or testing | Confirmed from a secondary source | |
| Ex. ID-072 | Statewide expansion of Crisis Standards of Care activationCrisis Standards of Care activated statewide | Idaho Department of Health and Welfare | IdahoSector regulator | Sept. 16, 2021 | 2021 Q3 | Health care orders | Confirmed from a secondary source | |
| Ex. SEC-21-064 | U.S. Travel Forecast page: U.S. Travel Spending (inflation-adjusted 2025 dollars, in billions): 2019 1,412; 2020 885; 2021 1,118; 2022 1,248; 2023 1,308U.S. Travel Forecast (Spring 2026) and historical travel spending series | U.S. Travel Association (data: Tourism Economics) | United States (trade association; context only)Sector regulator | Sept. 27, 2026 | | Other | Confirmed from a secondary source | |