UPDATED AUG. 19, 2021
A federal law, that went into effect earlier this year that equires individuals to wear a face mask when traveling by ublicly conveyed transportation willbe extended through January 2022. This includes travel by airline and all aircraft for hire to include FAR Part 135, Part 380, and all flight schools including Part 141.
Centers for Disease Control ORDER: https://www.cdc.gov/quarantine/pdf/Mask-Order-CDC_GMTF_01-29-21-p.pdf
CDC Press Release: https://www.cdc.gov/quarantine/masks/mask-travel-guidance.html