Hazardous Material Shipping

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 of the USPS are met.

OSM Worldwide follows USPS guidelines for shipping hazardous materials. For a list of items and definitions of other terms that relate to hazardous materials, refer to the USPS Hazardous Materials Guidelines.

• General Guidelines
• Hazardous Materials
• Restricted Materials
• Perishable Matter
• International Mail