Monday is Martin Luther King Jr. Day, and many workers will have the day off. Check what's open and closed for the federal holiday.

Priority mail would be the only exception. Do United Parcel Service and FedEx deliver on MLK day? UPS is closed on Martin Luther King Jr. Day, but UPS Express Critical service will still be available.

Martin Luther King Jr. Day ... The United States Postal Service will be closed Monday, so there will be no regular mail deliveries. Other delivery services, including United Parcel Service and ...

Federal and state offices, banks, as well as postal and trash services will be closed or suspended Monday. Here’s what else you should know.