United Airlines has strengthened mandatory mask policies to further mitigate against the spread of COVID-19 and help continue to keep passengers and crew safe.

Starting on June 18, any passenger that does not comply when onboard a United flight will be placed on an internal travel restriction list.

Customers on this list will lose their travel privileges on United for a duration of time to be determined pending a comprehensive incident review.

United currently requires all passengers to wear a face covering onboard its flights and expects that policy to remain in place for at least the next 60 days.

The only exceptions to this policy are individuals who have a medical condition or a disability that prevents them from wearing a face covering, those who cannot put on or remove a face covering themselves and small children.

Customers are expected to wear a mask for the duration of the flight, except when eating or drinking.

In addition to the onboard policies, United has implemented dozens of other new procedures at other points in the travel journey including offering touchless check-in for baggage at more than 200 locations.