3. REVISED DOMESTIC MAIL MANUAL
In addition to changing the process of developing and implementing new prices, the manner in which those prices, rules and standards are communicated is also changing. The Domestic Mail Manual (DMM), long the final reference authority for explaining mailing regulations, is undergoing dramatic change to make it more user-friendly. Recognizing that customers have varying levels of mailing knowledge, the Postal Service is designing a new series of DMMs for beginners, experts, decision makers, and implementers.

In 2002, DMM 100: A Customer’s Guide to Mailing, was introduced. The focus of this guide is the retail customer. The DMM 200, intended for small to medium volume mailers, is currently in production. It will be followed by a DMM 300 for large-volume mailers and a DMM 400 for special topics.

The DMM is being redesigned with the help of Carnegie Mellon University, recognized as a world leader in a process called user-centered design.