Please follow https://media.defense.gov/2021/Jul/28/2002814362/-1/-1/1/UPDATED-MASK-GUIDELINES-FOR-ALL-DOD-INSTALLATIONS-AND-OTHER-FACILITIES-OSD006862-21-FOD-FINAL.PDF.

Please follow https://media.defense.gov/2021/Jul/28/2002814362/-1/-1/1/UPDATED-MASK-GUIDELINES-FOR-ALL-DOD-INSTALLATIONS-AND-OTHER-FACILITIES-OSD006862-21-FOD-FINAL.PDF.