Force Health Protection Guidance (Supplement 23) Revision 3 - Department of Defense Guidance for Coronavirus Disease 2019 Vaccination Attestation, Screening Testing, and Vaccination Verification [open pdf - 2MB]
From the Document: "This memorandum [...] provides updated guidance for implementing additional force health protection and workplace safety measures directed by the White House Safer Federal Workforce Task Force (reference (b)) to reduce the transmission of the virus that causes coronavirus disease 2019 (COVID-19). [...] DoD civilian employees were required to be fully vaccinated by November 22,2021, subject to exemptions as required by law. For purposes of this guidance, 'DoD civilian employee' includes foreign nationals employed by DoD outside the United States to the maximum extent possible while respecting host nation agreements and laws. It also includes DoD civilian employees who are engaged in full-time telework or remote work."
U.S. Department of Defense: https://www.defense.gov/