Under this new policy, if a flight attendant notices or is informed of a customer onboard who is not wearing a face covering and that passenger does not fall within an exception, the flight attendant will proactively inform the customer that for the health and safety of everyone, face coverings are mandatory for all customers and crew on board. They will also offer to provide the customer with a mask if needed. If the customer continues to be non-compliant, flight attendants will do their best to de-escalate the situation, again inform the customer of United's policy, and provide the passenger with an In-Flight Mask policy reminder card. If a customer continues to not comply, the flight attendant will file a report of the incident, which will initiate a formal review process. Any final decision or actions regarding a customer's future flight benefits will not occur onboard but instead take place after the flight has reached its destination and the security team has investigated the incident.

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.