expatriates, members of the Armed Forces in active service, and the U.S.
Postcard applications, ballots, voting instructions, and envelopes sent through the mail without postage prepayment. (2) An abbreviation used on mail container labels that identifies the contents as automated area distribution center mail (i.e., the ZIP Codes on the mail are served by the AADC). (1) A presort level in which all pieces in the bundle or container are addressed for delivery in the service area of the same automated area distribution center (AADC).
