The present application generally relates to a method and system for identifying whether or not a particular mail piece has machine readable address correction service information and for providing feedback to a mailer or the Postal Service regarding errors in such requests and corrective action needed. In particular, the method relates to analyzing an encoded barcode containing address correction information to verify whether address correction service is requested. For each mail piece containing an address correction service request, the method includes verifying that address correction service request associated with the decoded barcode is valid.