Which of the following is NOT one of the Ancillary Service Endorsements?

The correct answer highlights that "Additional Service Requested" is not recognized as one of the Ancillary Service Endorsements. The other options—"Change Service Requested," "Forwarding Service Requested," and "Return Service Requested"—are legitimate endorsements used in mail processing.

Ancillary Service Endorsements are special instructions that help ensure the intended delivery of mail, particularly when the recipient has moved, is unavailable, or has specific forwarding instructions.

"Change Service Requested" instructs the postal service to inform the sender of the recipient’s new address. "Forwarding Service Requested" indicates that if the recipient has moved, the mail should be forwarded to their new location, allowing for continued communication. "Return Service Requested" directs the postal service to return the mail to the sender if delivery is not possible.

Given that "Additional Service Requested" lacks a specific role or recognized function in mail handling, it accurately reflects that it is not an established Ancillary Service Endorsement.