United States Postal Service (USPS). Track & trace the parcel from USA sent by USPS

USPS online tracking restored after outage

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

Military & Diplomatic Mail | USPS

Frustration grows over package delays at Indianapolis USPS hub

USPS operations, delivery issues in Richmond discussed at congressional oversight hearing