Type
Common Exapmples
Domestic
International
Domestic Mail
Pub 52
Maximum Amount Permitted in Mail
Additional Information
Air
Surface
Poisons
Mace (except those containing oleoresin capsicum)
N
346.221b
None
All irritants are prohibited.
Flea collars, cyanide, pesticides & herbicides
N*
346.211
Must check specific materials in Appendix A of PUB 52. If permitted, ORM-D or consumer commodity only.
Infectious Substances
Noninfectious
Specimens
Blood, urine, saliva, stool
Y
Y***
346.233
346.32
Must be properly packaged.
Biological & Medical Materials
Used sharps, medical devices
346.12
Items must be properly packaged for mailing; some require approval before mailing.