507 Quick Service Guide

Proper placement of the endorsement is required. If the endorsement cannot be seen or understood, you might not receive the service requested. A return address as presented in 602.1.6 must be used and placed in the upper left corner of the address side of the mailpiece or the upper left corner of the addressing area. If a return address is a multiple delivery address, it must show a unit designation (e.g., apartment number) The “Electronic Service Requested” ancillary service endorsement is available for participants of Address Change Service (ACS) or OneCode ACS (used with mailpieces bearing Intelligent Mail barcodes). Mailers using Intelligent Mail barcodes may encode ancillary service requests into mailpiece barcodes, but must also include a printed endorsement on USPS Marketing Mail pieces. Information about traditional ACS and OneCode ACS is located in Publication 8a, Address Change Service.

1. Directly below the return address.
2. Directly above the delivery address area (which includes the delivery address block and any related nonaddress elements such as a barcode, keyline, or optional endorsement line).
3. Directly to the left of the postage area and below or to the left of any price marking.
4. Directly below the postage area and below any price marking.