What is the primary reference manual for BMEUs?

The primary reference manual for Business Mail Entry Units (BMEUs) is the DMM, which stands for the Domestic Mail Manual. This manual serves as a comprehensive guide regarding mailing services and standards for domestic mail. It outlines the rules, regulations, and requirements that businesses must follow to ensure that their mail is processed efficiently and meets postal service standards.

The DMM includes detailed information about various mail classifications, pricing, preparation guidelines, and service standards that BMEUs use to guide their operations. This makes it an essential resource for anyone working with or in a BMEU, as it provides the foundational knowledge necessary for proper mail entry and processing.

Other materials such as the POM (Postal Operations Manual) and the USPS Manual contain valuable information, but they do not serve as the primary reference for BMEUs specifically. The Postal Codes Guide, while important for addressing and sorting mail, does not encompass the broader regulatory and procedural specifics that the DMM covers. Thus, DMM is key for BMEU operations.