US Postal Service changes may delay postmark dates, risking late California tax returns, the California Franchise Tax Board ...

The U.S. Postal Service made some work-flow changes that could impact mail-in ballots in the upcoming primary elections.

The U.S. Postal Service in Vermont has quietly implemented changes to the way mail is processed that are expected to further ...

PORTLAND, Ore. (AP) — A group of mostly Democratic U.S. senators sent a letter Thursday to the U.S. Postal Service, voicing concern that mail processing changes could affect postmark dates for mail-in ...

If you're mailing any time-sensitive documents, you may want to mail it earlier than usual under the agency's new postmark rules.

Changes to how the U.S. mail is stamped are quietly rewriting the rules for anyone who relies on a postmark to prove they met a deadline. Instead of reflecting the day you hand a letter to the Postal ...

Here's what to know about the latest price increases from the U.S. Postal Service.

Congressman Jack Bergman wrote his constituents in the Western Upper Peninsula have not had "normal mail service for more ...