The Association of Flight Attendants-CWA, which represents more than 50,000 flight attendants at airlines including United, Alaska, Hawaiian, Spirit, and Frontier, has called for the masking requirements to be extended once again, regardless of the CDC’s new recommendations.

TSA officials have indicated that the masking requirements are under review, in consultation from the CDC. The decision on whether they will remain in place will come March 18, when they are set to expire.