U.S. Postal Service

As October ushers in Breast Cancer Awareness Month, the U.S. Postal Service is inviting Americans to help advance research—one envelope at a time.

Starting Sept. 29, 2025, USPS customers in Guam, American Samoa, the Northern Mariana Islands, and the U.S. Virgin Islands must prepay customs duties on select items shipped to U.S. states or Puerto Rico.

The U.S. Postal Service announced on Tuesday that mail and packages sent from Guam and the Northern Mariana Islands to the mainland will continue to be accepted, transported, and delivered as usual.

An executive order that went into effect Friday suspended a rule that allowed packages valued under $800 to enter the U.S. without duties or extra customs paperwork