A hazardous material is any article or substance designated by the U.S. Department of Transportation (DOT) as being capable of posing an unreasonable risk to health, safety, or property during transportation. In international commerce, hazardous materials are known as “dangerous goods.”

For reasons of safety, most hazardous materials are non-mailable. However, some hazardous materials and otherwise restricted matter, or perishable matter are permitted to be mailed when the requirements in this publication are fully met.

USPS requires the use of proper packaging, marking, and labeling for shipping hazardous material.

Use Pub 52 for reference: https://pe.usps.com/text/pub52/welcome.htm

Requirements specifically for Battery products:



If you ship hazardous materials / dangerous goods, you must set up the DG Type on ActionShip correctly.

DG Type is a number associated with a product in Teapplix ActionShip.

You can setup dangerous goods type in 2 ways:

  1. On the "remember weight" screen - click on remember weight, and fill in the dangerous goods type
  2. On the product screen - find the specific product, click "edit", and click in the "Dangerous Goods Type" and select the proper code