Hazardous materials

There are mandatory requirements for mailing packages containing hazardous or perishable material. Find this information in the Domestic Mail Manual (DMM), International Mail Manual (IMM) and Publication 52, Hazardous, Restricted, and Perishable Mail. Many hazardous materials acceptable for mailing can’t be transported by air. USPS maintains strict quantity restrictions and packaging, labeling, marking and documentation requirements for hazardous materials transported by air.

The DMM, IMM and Pub 52 can be found on the PolicyNet link on the Blue Intranet.

And that’s smart safety!

For additional information or guidance, contact your safety office.