For decades, a USPS postmark has served as official evidence that mail was sent on time. In elections, many state laws treat a ballot as valid if it is postmarked by Election Day, even if it arrives ...

The U.S. Postal Service is implementing changes as part of its 10-year "Delivering for America" plan to achieve financial stability. A change in how mail is processed means items dropped in a blue box ...

A recent change in how the U.S. Postal Service postmarks letters could discount the ballots of thousands of last-minute voters. Many Americans have long assumed that tax returns, ballots and other ...

Instead of mail being postmarked when it is first received, it will now be stamped while being sorted and processed at regional distribution centers. That delay could have troubling implications for ...