Mailer’s Guide To USPS Ship & Tech Sheet
USPS Ship is a modernized platform enabling commercial package payment, verification, and end-to-end visibility for a wide array of domestic and international products. [...]
Memo 833
Properly Securing Bundles of Flats: No Rubber Bands or String Unless First-Class
Please note that as of July of 2025, the Postal Service no longer permits using rubber bands and twine or string for securing bundles of flats, with the exception of bundles [...]