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112 Use

This publication is designed for use by mailers and for employees in business mail entry, retail units, marketing, and other functional areas that are involved with providing mailability information to Postal Service customers.

Follow the standards contained in this publication when deciding whether and under what conditions hazardous materials, restricted matter, and perishable matter are permitted to be mailed.

The content of this publication is based on former DMM standards which have been incorporated into this publication, as well as regulations of federal agencies in effect at the time of publication. Future changes to the federal regulations may supplement, amend, or supersede the content of this publication.