USPS - Mailing & Shipping Guidelines for Business

Mailing & Shipping Guidelines for Business

Look up standards and requirements for U.S. Postal Service® products and services.

Find solutions designed to improve your business’ mailing program.

Select the best service for your domestic mailing or shipping needs, find preparation requirements, and more.

Select the best service for your international mailing and shipping needs, find preparation requirements, and more.

Learn about Customs, get help with shipping instructions, and more.

Use these resources to find detailed information about or request USPS® products and services.

Search our virtual library for information on USPS products and services for businesses.

Find all the information you need to create a Direct Mail (Advertising) campaign.

Find summaries of price, preparation, and formatting standards for USPS service options.

Boost your business with customized maps and reports, including ZIP Code/Carrier Route Maps.