The United States Postal Service (USPS) has announced significant changes to its postmark rules, raising concerns about potential delays in mail that could impact ballots, tax returns, and other important documents. The new policy means that mail, including mail-in ballots and certain payments, may no longer receive a postmark on the same day they are dropped off at post offices. This shift could lead to complications for voters and taxpayers, as late postmarks may result in missed deadlines and additional fees. Local treasurers have urged residents to mail their tax payments early, while voting advocates express alarm over how these changes could affect mail-in voting, especially in upcoming elections. Customers are advised to stay informed about the new guidelines to ensure timely delivery of their time-sensitive documents.