U.S. Postal Service (USPS) workers will no longer deliver UPS SurePost packages after the government agency's contract with the parcel service expired this year. The International Brotherhood of Teamsters, a union representing UPS delivery drivers, confirmed the negotiated service agreement's expiration in a Facebook post last week.

Martin Luther King Jr. Day is a federal holiday, but some shipping and delivery services may still be operational. Here's what we know.

The United States Postal Service (USPS) and UPS SurePost have terminated their contract, which will impact package delivery practices and services in specific regions.

United Parcel Service (UPS) is set to implement significant changes to its SurePost service, which has long relied on the United States Postal Service (USPS) for final-mile deliveries, following the expiration of their recent contract,