USPS - Mailing & Shipping Guidelines

Mailing & Shipping Guidelines

Learn about standards and requirements—and get the forms you need—to mail and ship easily with the U.S. Postal Service®.

Select the best mailing service for your needs.

Find out how to address your mail and packages for faster shipping in the U.S.

Learn how to make your package more secure and easier to ship.

Make sure your mail is addressed accurately and legibly.

Get a quick overview of standards for a particular Postal Service™ rate, service, or preparation method.

Learn about Customs, find shipping instructions, and more.

Find out how to address your mail and packages for faster international shipping.

Learn about requirements when sending mail outside of the U.S.

Find USPS® forms and publications to help you understand your mailing and shipping options.

Order maps to improve your targeted marketing.