Force Health Protection Guidance (Supplement 17) Revision 1 - Department of Defense Guidance for the Use of Masks, Personal Protective Equipment, and Non-Pharmaceutical Interventions During the Coronavirus Disease 2019 Pandemic [open pdf - 309KB]
From the Document: "This memorandum rescinds reference (a) and supplements references (b) and (c) with updated guidance on the use of masks in conjunction with other public health measures, including non-pharmaceutical interventions (NPI's), during the coronavirus disease 2019 (COVID-19) pandemic. This memorandum includes updated guidance for fully vaccinated personnel. It maintains guidance on use of personal protective equipment (PPE). Service members and civilian employees who misrepresent their vaccination status may be subject to appropriate adverse administrative or punitive actions."
U.S. Department of Defense: https://www.defense.gov/