Letter carriers across the country took part in the nation's largest one-day food drive Saturday – the 27th annual Stamp Out Hunger Program.

Stamp Out Hunger is a national food drive campaign where letter carriers collect non-perishable items to help families facing food insecurity. Residents were asked to put a bag of food by their mailboxes Saturday morning so a letter carrier or a volunteer can pick it up.

Former New Jersey Lt. Gov. Kim Guadagno, now the president and CEO of Fulfill in Monmouth and Ocean counties, spoke with News 12 about the hard work letter carriers put in to make sure food donations were brought in.

“We've run out of bins, so now we're using postal service bins," she told News 12.

The items are delivered to a local food bank who then hands it out to those in need within the community.

Over the program's 26 years, the U.S. Postal Service has picked-up more than 1.5 billion pounds of donated food nationwide.