The function of mail classification rates belongs to personnel within which facility?

The function of mail classification rates is primarily handled by personnel within a Military Post Office (MPO). Military Post Offices are responsible for managing the vast array of mail services that include sorting, classifying, and ensuring the correct rates are applied to different types of mail. This classification is crucial as it determines the pricing and delivery method for various mail services, which is particularly important in a military context where timely and secure delivery of communications is essential.

In contrast, Aerial Mail Terminals, Regional Postal Centers, and Private Mail Services have more specific roles that do not encompass the comprehensive management of mail classification rates. Aerial Mail Terminals focus on the transportation and handling of air mail, Regional Postal Centers serve broader geographical mail distribution, and Private Mail Service operates outside military specifications, emphasizing commercial practices rather than military mail classification and rates.