TOOLS & RESOURCES

Shipping and mailing requirements can vary for a wide variety of reasons. Before committing to a single approach, use the below links to help you with your research or contact us for some innovative solutions.

INTERNATIONAL

What Are You Mailing Internationally?

Maximum dimensions and thicknesses for postcards, letters, large envelopes, and packages.

Guidelines for Addressing International Mail & Packages

International destination addresses must comply with the standards in this section.

US Government Export Education Guide

Are you looking to grow your business through exporting? Assess your company’s readiness for entering your first markets, expanding into additional markets, or taking on more challenging, high-growth export markets.

USPS Preparing International Shipments

Help your international delivery arrive on time! Learn about international address formats, size requirements, safety restrictions, & other tips on USPS.com.

Country Specific Tariff and Tax Information

A tariff or duty (the words are used interchangeably) is a tax levied by governments on the value including freight and insurance of imported products. Different tariffs are applied on different products by different countries.

Harmonized Tariff Codes Commodity Classification

The HTS Search functionality allows users to query the database to find information specific to certain goods or items found in the officially published HTS document.

CANADA

Canada - Import Requirements and Documentation

Includes import documentation and other requirements for both the U.S. exporter and foreign importer.

Canada – Trade Promotion and Advertising

Includes web links to local trade fair or show authorities and local newspapers, trade publications, radio/TV/cable information.

Canada – Country Conditions for Mailing

Country Conditions for Mailing — Canada

Canada – Postal Addressing Standards

Rules for Canada address format use of the standard two–character abbreviation for provinces and territories.

DOMESTIC

USPS Shipping Restrictions

If you have any questions about whether or not the contents of your shipment can be shipped by USPS®, consult the lists of prohibited and restricted items.

What Are You Mailing Domestically?

Did you know the shape of your mail determines the price you will pay?

What USPS Service Is Right For Me?

Choosing a Service for Mailing: Shape + Speed + Cost = Service

Making Smart Choices When Mailing

Find examples show how mailing services can be combined to meet your needs.

USPS Postage Rates

Current price lists for all mailing categories.

Nonprofit Mailing Application

Application to Mail at Nonprofit USPS Marketing Mail Prices

Look Up a Zip Code

Look Up a ZIP Code™ by Address, by City/State, or Cities by ZIP Code™