The Domestic Mail Manual addresses the rules concerning mail transmission within which geographic area?

The Domestic Mail Manual (DMM) outlines the regulations and guidelines governing the transmission of mail within the geographic area of the United States of America. The DMM includes rules regarding postage, mail preparation, delivery, and various services offered by the United States Postal Service (USPS) specifically for domestic mail. It does not encompass mail transmission rules for other regions, such as North America, international territories, or the European Union, which have their own distinct mailing guidelines and regulations. Hence, focusing on the United States provides the foundational context necessary for understanding the domestic postal system and its operations.