Q. How important is a correct barcode in an automation rate mailing?

A. It is so important, and I’m glad you asked. Mailings entered at automation rates must meet the barcoding standards in DMM C840, and any additional standards for the applicable processing category and class of mail presented.

One of the basic automation standards is that each addressed piece must bear an accurate barcode. A card or a letter must bear a delivery point barcode (DPBC) and a flat must bear either a DPBC or a ZIP+4 barcode, either on the piece or on an insert showing through a barcode window.

Mail that is incorrectly barcoded has the potential to become “loop mail” which creates major impacts on both service and operations.

The deployment of MERLIN will assist in identifying barcode issues when the barcode readability feature is phased in. However, MERLIN is not a substitute for awareness in identifying this common irregularity.