New USPS guidelines explain postmarking, advise on ensuring correct mailing dates

Postal carrier arrested for allegedly trying to strike child with USPS vehicle

USPS warns of mail delivery delays in over 30 states

10 Zip Code Sites to Find Your Area Postal Code Easily

USPS shows you how to send a letter or postcard in the U.S., from choosing an envelope, writing the address, buying and applying stamps, and finding a drop-off location.

How to Prepare & Send a Package | USPS

How to Become a Contract Delivery Service for the United States Postal Service

USPS Issues Delivery Warnings in 15 States Over Winter Weather

USPS responds to frustrated Marylanders as mail delivery issues continue