Resources Because travel information is subject to change, please check the home-pages of these sites or call for the most current information. Try using the following search terms: “prohibited materials,” “hazardous materials” and “passenger travel.”
United States Postal Service (USPS)• www.usps.gov
To find USPS regulations on mailing hazardous materials: from the homepage, select “All Products & Services.” From that page you can select links to aviation security and the Domestic Mail Manual (DMM).
United Parcel Service (UPS)• www.ups.com
To find UPS regulations on shipping hazardous materials: from the homepage, select the “Support” menu tab to find information on preparing your package and hazardous or dangerous materials.