(AP) – Passengers wishing to board a United Airlines flight will have to wear face masks at ticket counters and in its airport lounges, or risk a flight ban from the carrier.

United and all other major U.S. carriers require passengers to wear masks during flights.

United said Wednesday that it is broadening mask requirements for passengers even before they board the plane.

As on planes, children under 2 are not required to be masked, nor are passengers who have a health condition that prevents them from wearing a mask.