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6 International Mail

61 General

This chapter contains information and guidelines on the mailability of hazardous materials, restricted matter, and perishable matter that may be sent as international mail. Additional information on these subjects is contained in chapters 3, 4, and 5; in Mailing Standards of the United States Postal Service, International Mail Manual (IMM®) 135–138; and in DMM 601.9–601.11.

The primary mailing regulations on which these guidelines are based are found in the IMM and DMM.