Cybersecurity and Infrastructure Security Agency (CISA), Department of Homeland Security, Memorandum on Identification of Essential Critical Infrastructure Workers During COVID-19 Response, Version 1.0 (Mar. 19, 2020) (Ex. SEC-07-001)
CISA, Guidance on the Essential Critical Infrastructure Workforce, Version 2.0 (Mar. 28, 2020) (Ex. SEC-07-002)
CISA, Guidance on the Essential Critical Infrastructure Workforce, Version 3.0 (Apr. 17, 2020) (Ex. SEC-07-003)
CISA, Guidance on the Essential Critical Infrastructure Workforce, Version 3.1 (May 19, 2020) (Ex. SEC-07-004)
CISA, Guidance on the Essential Critical Infrastructure Workforce, Version 4.0 (Aug. 18, 2020) (Ex. SEC-07-005)
CISA, Guidance on the Essential Critical Infrastructure Workforce, Version 4.1 (Aug. 5, 2021) (Ex. SEC-07-024)
