What information can be found in the Domestic Mail Manual (DMM)?

The Domestic Mail Manual (DMM) serves as a comprehensive guide outlining the policies, procedures, and regulations governing mailing within the United States. This manual is essential for postal employees as it provides detailed instructions and rules that help ensure consistent and efficient services across the postal system.

The DMM covers a wide range of topics, including acceptable mailing standards, service options, and pricing structures for various types of domestic mail. By having access to this information, postal workers can effectively assist customers and ensure compliance with all mail-related regulations.

The other options do not align with the primary purpose of the DMM. While maps of postal routes and guidelines for parcel wrapping may be helpful for certain logistical tasks, they are not the main focus of the DMM. Additionally, rate charts specifically for international shipping are found in different resources tailored to international mail, not within the DMM which exclusively addresses domestic mailing protocols.