Address Service Requested – USPS Definition

Address Service Requested

An Ancillary Service endorsement printed on mail by the sender that directs USPS to forward undeliverable-as-addressed mail and provide the sender notice of the new address. If no change-of-address order is on file or the time period for forwarding has expired, the piece is returned to the sender with the reason for nondelivery attached. Fees charged can vary by mail class and product.

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