The Transportation Security Administration (TSA) is extending the face mask requirement for individuals across all transportation networks throughout the United States, including at airports, onboard commercial aircraft, on over-the-road buses, and on commuter bus and rail systems through September 13.
TSA’s initial face mask requirement went into effect on February 1 with an expiration date of May 11.
https://www.tsa.gov/news/press/releases/2021/04/30/tsa-extends-face-mask-requirement-airports-and-throughout
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