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Postal Explorer > Publication 52 - Hazardous, Restricted, and Perishable Mail > 4 Restricted Matter > 45 Liquids, Powders, and Odor–Producing Materials > 452 Mailability

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452 Mailability

  1. Liquids and powders that are nonhazardous (i.e., not regulated as hazardous materials) are mailable provided they are properly packaged as specified in 453 and DMM 601.12.9.1 and DMM 601.12.9.2.
  2. Any matter that is a source of an obnoxious odor is nonmailable as stated in DMM 601.12.8.

452.1 Restrictions

Liquids and powders that are corrosive, explosive, flammable, toxic, or otherwise hazardous are subject to the mailing conditions for hazardous materials in chapter 3 and DMM 601.10, as applicable.

452.2 Cremated Remains

Human ashes are permitted to be mailed provided they are packaged as required in 453b. The identity of the contents should be marked on the address side. Mailpieces sent to domestic addresses must be sent via Express Mail or Registered Mail service. Mailpieces sent to an international address must be sent via Registered Mail service, and the country listing in the IMM must show that cremated remains are permitted and Registered Mail service must be available for that country.




Link to "45 Liquids, Powders, and Odor‑Producing Materials"Link to contents for "4 Restricted Matter"      Link to IndexLink to "453 Packaging and Marking"