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Z4CHANGE MODULE GET TO KNOW THE

AccuZIP is proud to be one of three vendors certified for Z4CHANGE (learn more at bit.ly/ Z4CHANGE). The Z4CHANGE module provides mailers with the information necessary to create an application that will facilitate frequent and cost-effective processing for updating extensive computerized mailing lists for automation compatibility and improved deliverability.

Current USPS® regulations require that all customer address lists be processed by CASS Certified™ address-matching software (see Domestic Mail Manual (DMM), section A708 for a complete description of CASS™ requirements). CASS-certified software applies the correct ZIP+4®, delivery point, and/or carrier route codes while standardizing address, city, and state elements. To enhance deliverability, the USPS recommends that customers reprocess their address lists more frequently using CASS Certified software. However, frequent reprocessing of address lists can be costly and time-consuming.

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Z4CHANGE was developed for customers who need data as a cost-effective means of improving the deliverability of their mail using the most current ZIP+4 and delivery point information. Z4CHANGE helps customers achieve this goal by providing data that indicates which ZIP+4 codes have been realigned in the past twelve months. When a high-rise (“H”) or firm (“F”) record is added to ZIP+4 by the USPS, Z4CHANGE also shows a transaction for the supporting street ZIP+4 code, allowing customers the opportunity to upgrade previously coded street-level matches. Customers must then develop their own software to access Z4CHANGE to determine which records on their address lists need to be reprocessed by CASS Certified software. As a result, only the records that have had transactions will need to be reprocessed, which can be done monthly or bimonthly.

Should the USPS determine that a significant change in CASS™ requirements warrants a complete update of all addresses, Z4CHANGE customers may be notified that they will be required to reprocess their entire address lists. Otherwise, Z4CHANGE customers will only

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