Don’t forget this year’s Stamp Out Hunger — the nation’s largest one-day food drive — is today, May 9.

The Postal Service encourages customers to place a sturdy bag containing non-perishable food next to their mailboxes prior to regular mail delivery May 9. Letter carriers will collect the food, which will be donated to local food banks.

“For more than two decades, the National Association of Letter Carriers and the Postal Service have worked together to stamp out hunger in America. This year, we’ll come together once again to help feed families in need,” said PMG Megan Brennan.

Approximately 50 million people face hunger every day in the United States, including almost 17 million children.

Stamp Out Hunger has collected more than 1 billion pounds of food since the annual drive began in 1993.