| Ex. FED-394 | CISA, Guidance on the Essential Critical Infrastructure Workforce, v1.0 (Mar. 19, 2020)Guidance on the Essential Critical Infrastructure Workforce: Ensuring Community and National Resilience in COVID-19 Response, Version 1.0 | Cybersecurity and Infrastructure Security Agency, Department of Homeland Security (Director Christopher C. Krebs) | United StatesFederal | Mar. 19, 2020 | 2020 Q2 | Other | Primary source read | |
| Ex. ECO-A-122 | Advisory Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response, Version 3.0 (Apr. 17, 2020)CISA Essential Critical Infrastructure Workforce guidance, Version 3.0 | CISA, Department of Homeland Security | United StatesFederal | Apr. 17, 2020 | 2020 Q2 | Business closure | Primary source read | |
| Ex. ECO-A-123 | Advisory Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response, Version 3.1 (May 19, 2020)CISA Essential Critical Infrastructure Workforce guidance, Version 3.1 | CISA, Department of Homeland Security | United StatesFederal | May 19, 2020 | 2020 Q22020 Q3 | Business closure | Primary source read | |
| Ex. ECO-A-124 | Advisory Memorandum on Ensuring Essential Critical Infrastructure Workers' Ability to Work During the COVID-19 Response, Version 4.0 (Aug. 18, 2020) (the document also carries the Dec. 16, 2020 Version 4.0 reissue date)CISA Essential Critical Infrastructure Workforce guidance, Version 4.0 | CISA, Department of Homeland Security | United StatesFederal | Aug. 18, 2020 | 2020 Q32020 Q42021 Q12021 Q22021 Q3 | Business closure | Primary source read | |
| Ex. SEC-09-037 | Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response (Version 1.0)CISA Essential Critical Infrastructure Workforce Guidance v1.0 | CISA (Director Christopher C. Krebs) | United StatesFederal | Mar. 19, 2020 | | Other | Primary source read | |
| Ex. ECO-A-125 | Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response, Version 1.0 (Mar. 19, 2020)CISA Essential Critical Infrastructure Workforce guidance, Version 1.0 | Cybersecurity and Infrastructure Security Agency, Department of Homeland Security (Director Christopher C. Krebs) | United StatesFederal | Mar. 19, 2020 | 2020 Q2 | Business closure | Primary source read | |
| Ex. SEC-09-036 | Guidance on the Essential Critical Infrastructure Workforce, Version 3.0 (Apr. 17, 2020) (file opens with the Mar. 28, 2020 advisory memorandum)CISA Essential Critical Infrastructure Workforce Guidance v3.0 | Cybersecurity and Infrastructure Security Agency, Department of Homeland Security (Director Christopher C. Krebs) | United StatesFederal | Apr. 17, 2020 | | Other | Primary source read | |
| Ex. SEC-12-073 | Guidance on the Essential Critical Infrastructure Workforce, Version 3.0CISA Guidance on the Essential Critical Infrastructure Workforce, Version 3.0 (Apr. 17, 2020) | Cybersecurity and Infrastructure Security Agency (DHS) | United StatesFederal | Apr. 17, 2020 | 2020 Q22020 Q3 | Other | Primary source read | |
| Ex. SEC-19-002 | Guidance on the Essential Critical Infrastructure Workforce, Version 2.0Advisory Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response (Version 2.0) | CISA | United StatesFederal | Mar. 28, 2020 | 2020 Q2 | Other | Primary source read | |
| Ex. SEC-18-001 | Guidance on the Essential Critical Infrastructure Workforce, Version 4.1Advisory Memorandum on Ensuring Essential Critical Infrastructure Workers' Ability to Work During the COVID-19 Response | Cybersecurity and Infrastructure Security Agency (CISA), Department of Homeland Security (Director Jen Easterly) | United StatesFederal | Aug. 10, 2021 | 2021 Q3 | Other | Primary source read | |
| Ex. SEC-07-001 | Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response, Version 1.0Guidance on the Essential Critical Infrastructure Workforce: Ensuring Community and National Resilience in COVID-19 Response, Version 1.0 | Cybersecurity and Infrastructure Security Agency (CISA), Department of Homeland Security | United StatesFederal | Mar. 19, 2020 | | Other | Primary source read | |
| Ex. SEC-07-003 | Guidance on the Essential Critical Infrastructure Workforce, Version 3.0Advisory Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response, Version 3.0 | CISA | United StatesFederal | Apr. 17, 2020 | 2020 Q2 | Other | Primary source read | |
| Ex. SEC-07-004 | Guidance on the Essential Critical Infrastructure Workforce, Version 3.1Advisory Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response, Version 3.1 | CISA | United StatesFederal | May 19, 2020 | 2020 Q22020 Q3 | Other | Primary source read | |
| Ex. SEC-07-005 | Guidance on the Essential Critical Infrastructure Workforce, Version 4.0Advisory Memorandum on Ensuring Essential Critical Infrastructure Workers' Ability to Work During the COVID-19 Response, Version 4.0 | CISA | United StatesFederal | Aug. 18, 2020 | 2020 Q32020 Q4 | Other | Primary source read | |
| Ex. SEC-07-024 | Guidance on the Essential Critical Infrastructure Workforce, Version 4.1Advisory Memorandum on Ensuring Essential Critical Infrastructure Workers' Ability to Work During the COVID-19 Response, Version 4.1 | CISA | United StatesFederal | Aug. 5, 2021 | 2020 Q42021 Q12021 Q22021 Q3 | Other | Primary source read | |
| Ex. SEC-18-002 | Guidance on the Essential Critical Infrastructure Workforce, Version 3.0Advisory Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response | CISA, Department of Homeland Security (Director Christopher Krebs) | United StatesFederal | Apr. 17, 2020 | 2020 Q22020 Q3 | Other | Primary source read | |
| Ex. SEC-19-001 | Guidance on the Essential Critical Infrastructure Workforce, Version 1.0Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response | Department of Homeland Security, Cybersecurity and Infrastructure Security Agency (CISA) | United StatesFederal | Mar. 19, 2020 | 2020 Q2 | Other | Primary source read | |
| Ex. SEC-19-003 | Guidance on the Essential Critical Infrastructure Workforce, Version 3.0Advisory Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response (Version 3.0) | CISA | United StatesFederal | Apr. 17, 2020 | 2020 Q22020 Q3 | Other | Primary source read | |
| Ex. AGY-DEFENSE-GUARD-037 | Memorandum for Defense Industrial Base, Defense Industrial Base Essential Critical Infrastructure Workforce (Mar. 20, 2020)Defense Industrial Base Essential Critical Infrastructure Workforce | Under Secretary of Defense for Acquisition and Sustainment Ellen M. Lord | Defense Industrial Base (all DoD prime contractors and subcontractors)Federal | Mar. 20, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Business closureWorkplace rulesSupply chain | Primary source read | |
| Ex. AGY-FED-FINANCIAL-012 | SR 20-6Identification of Essential Critical Infrastructure Workers in the Financial Services Sector During the COVID-19 Response | Board of Governors of the Federal Reserve System | United States; Board of Governors of the Federal Reserve System (federal)Federal | Mar. 27, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Stay-at-homeTravel and quarantineOther | Primary source read | |
| Ex. DUT-FED-063 | Interim Guidance for Implementing Safety Practices for Critical Infrastructure Workers Who May Have Had Exposure to a Person with Suspected or Confirmed COVID-19 (Apr. 8, 2020)Interim Guidance for Implementing Safety Practices for Critical Infrastructure Workers Who May Have Had Exposure to a Person with Suspected… | Centers for Disease Control and Prevention | United StatesFederal | Apr. 8, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyFace-covering requirementWorkplace rulesQuarantine and isolation | Primary source read | |
| Ex. AGY-FED-FINANCIAL-013 | OCC Bulletin 2020-23Pandemic Planning: Essential Critical Infrastructure Workers in the Financial Services Sector | Office of the Comptroller of the Currency | United States; Office of the Comptroller of the Currency (federal)Federal | Mar. 25, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Context (guidance or announcement)Stay-at-homeTravel and quarantine | Primary source read | |
| Ex. AGY-FED-FINANCIAL-031 | Letter to Credit Unions 20-CU-03Identification of Essential Critical Infrastructure Workers During COVID-19 | NCUA | United States; National Credit Union Administration (federal)Federal | Mar. 1, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Context (guidance or announcement)Stay-at-homeTravel and quarantine | Primary source read | |
| Ex. AGY-USCG-PORTS-012 | MSIB 11-20Maintaining Maritime Commerce and Identification of Essential Maritime Critical Infrastructure Workers | Commandant, U.S. Coast Guard, Inspections and Compliance Directorate | United States Coast Guard; nationwideFederal | Mar. 27, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q2 | Context (guidance or announcement)Stay-at-homeOther | Primary source read | |
| Ex. DUT-FED-034 | Interim Guidance for Businesses and Employers to Plan and Respond to Coronavirus Disease 2019 (COVID-19) (as revised March 21, 2020)Interim Guidance for Businesses and Employers to Plan and Respond to Coronavirus Disease 2019 (COVID-19) | Centers for Disease Control and Prevention | United StatesFederal | Mar. 21, 2020 | 2020 Q2 | Standing dutyWorkplace rulesQuarantine and isolation | Primary source read | |