HAZMAT Search Tool
Many common household products contain hazardous materials (HAZMAT, or dangerous goods [DG] when shipped internationally). These items could cause injuries or damage if not properly prepared for mailing.
1Assess: Is it HAZMAT?
Type your item's proper shipping name, ID Number, or description into the HAZMAT Search Tool. (Note that the tool is looking for very specific terms.)
2Check: Can I ship it?
Your item's results will show whether it is mailable or prohibited for air, surface, and international shipping. If your item is prohibited, you can't send it with USPS and need to find another solution.
3Determine: How should I package it?
There are specific guidelines you must follow when shipping mailable HAZMAT/DG. In the search results, select the link to see the USPS™ Packaging Instructions for your item, which includes quantity limits and packaging and labeling requirements.