Type
Common Examples
Domestic
International
Domestic Mail
Maximum Amount Permitted in Mail
Additional Information
Air
Surface
DMM
PUB 52
Meats and Meat products
Fresh meat & fish or frozen fish, steaks
Y
N*
601.9.1
55
International mail subject to ICL restrictions/prohibitions. If dry ice is used, see DMM 601.10.20.4.
Fresh Foods
Fruits, vegetables
601.9.2
53
Plants
Trees, citrus, cactus
601.9.6
56
International mail subject to ICL restrictions/prohibitions. USDA regulations/prohibitions apply.
Y* See Pub 52 for additional required markings.
Y** Only with prior written permission per IMM and Pub 52.
Y*** Specimens only and with prior HQ permission per IMM and Pub 52.
N* Except as permitted by mailing rules
DMM® Mailing Standards of the United States Postal Service\u00A8, Domestic Mail Manual
ICL Individual country listings in International Mail Manual (IMM)
For more information about mailability exceptions and technical information, provide customers with telephone number for their local business mail entry unit or have them call 1-800-ASK-USPS.