ACS can also be used to pay forwarding postage on most Standard Mail and Package Services pieces using Shipper Paid Forwarding under 2.5 . ACS is available monthly, weekly, or more frequently, depending on the mailer's requirements and ACS volume. Because ACS is associated with USPS computerized forwarding operations, the service is not available at all post offices. 2.4 Fee Unless excepted, the applicable fee for address correction is charged for each separate notification of address correction or the reason for nondelivery provided. Shipper Paid Forwarding is an ACS fulfillment vehicle.
Mailers have the option of paying forwarding charges through a postage due advance deposit account.
Mailers who choose to do so must pay an annual accounting fee. The FASTforward Mailing List Correction application updates name and address mailing lists before pieces are prepared for mailing. The term name lines includes recipient's name, firm name, and building name. Any alternative format under A040 is not permitted. An envelope that contains a window that intrudes into the barcode clear zone is not eligible for FASTforward.