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 and FedEx say the recent weather is behind delays in folks getting their mail. Customers of both the USPS and FedEx reached out to Nexstar’s WOWK 13 News with concerns that they hadn’t been receiving their mail.

"Millions of packages moved away from SurePost and the United States Postal Service and returned to UPS package cars this month, now being sorted and delivered by hardworking UPS Teamsters." the social media post reads.

U.S. Postal Service (USPS) workers will no longer deliver UPS SurePost packages. Here's how fast you could get your deliveries.

While USPS mail and deliveries will be delayed, UPS and FedEx pickup and delivery services will continue as usual. Generally, UPS and FedEx office locations remain open as well. Business hours vary by location.

While a majority of financial institutions, retailers and schools will be operating as usual on Thursday, Jan. 9, the U.S. Postal Service and all its branches will be closed, according to the USPS.

FedEx, UPS and the U.S. Postal Service are warning customers of potential delivery delays across the central and eastern U.S. due to Winter Storm Blair.

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.

The one-day delivery option is designed for businesses with minimum daily shipping volumes that can meet defined cutoff windows.

If you’re changing your name and gender, you’ve gotta go in person. Make an appointment online, bring a standalone or “A-list” document with your new name on it, or a certified court order for your name change. Prepare to smile for the camera.

While most government functions will not be operating on Monday, most grocery stores, big box stores and restaurants will remain open. Major chain stores such as Target, Costco, Walmart, The Home Depot, Jewel-Osco and Mariano's will remain open on the holiday.

Here's a list of businesses and services that will be open or closed in North Texas during MLK Day as the region experiences freezing temperatures and the potential for flurries or light snow. All schools in the Dallas-Fort Worth Metroplex area are closed.