'''CASS''' ('''Coding Accuracy Support System''') enables the [[United States Postal Service]] to evaluate the [[accuracy ]] of [[software ]] that cleans and matches addresses[[street address]]es. CASS Certification[[certification]] is offered to all mailers, [[service bureausbureau]]s, and software vendors[[vendor]]s that would like the [[USPS]] to [[evaluate ]] the [[quality ]] of their address-matching software and improve the [[accuracy ]] of their [[ZIP Code|ZIP]]+4, [[carrier route ]], and five-digit coding accuracy. ▼:''CASS may refer to an abbreviation of the [[Chinese Academy of Social Sciences]], [[Cass Business School, London]], or [[Caixa Andorrana de Seguretat Social]]
▲'''CASS''' ('''Coding Accuracy Support System''') enables the [[United States Postal Service]] to evaluate the accuracy of software that cleans and matches addresses. CASS Certification is offered to all mailers, service bureaus, and software vendors that would like the [[USPS]] to evaluate the quality of their address-matching software and improve the accuracy of their [[ZIP Code|ZIP]]+4, carrier route, and five-digit coding accuracy.
For software vendors and service bureaus, CASS Certification must be renewed annually with the USPS to meet current CASS Certification cycle requirements.
CASS Certified products are listed in USPS literature and on its web site. CASS software will correct and standardize addresses. It will also add missing address information, such as [[ZIP Code|ZIP Codes]]codes, cities, and states[[state (US)|state]]s, to ensure the address is complete. Starting with 2007 Cycle L, CASS software will also perform [[Deliverydelivery Pointpoint]] Validation[[validation]] to verify whether or not an address is a deliverable address and access the USPS [[Locatable Address Conversion System]] to update addresses that have been renamed or renumbered. Cycle L also requires that the address be confirmed with the [[Delivery Point Validation]] before adding a +4 Codecode to the ZIP Codecode.
A correct address in turn saves the Postal Service time, money and man-powermanpower by reducing the volume of 1) non-deliverable mail; 2) unsorted mail; 3) mail that is deliverable, but requires extra effort to determine the proper ___location to deliver it to.<ref>{{cite web | url = http://ribbs.usps.gov/files/CASS/CASS%5FCYCLE%5FL/CASS_CERT_REQ_MAILERS_GUIDE.PDF | title = CASS Certification Requirements, A Mailer's Guide | publisher = United States Postal Service | accessdate = 2007-07-27 | date = 2007-06-26 }}</ref>. Mailers who use CASS software may be able to qualify for discounted[[discount]]ed postage rates from the USPS.
An example of what CASS software will correct in an address:
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Here the street and city name misspellings have been corrected; street suffix, zipZIP code and zip4ZIP+4 add-on have been added; and, in this case, the address was determined to be the ___location of a business.
In addition to an updated address, CASS software can also return descriptive information about the address. The information falls into two categories. 1):
# If the address was successfully processed, or if not then why. 2),
# Information on how to deliver the mailing.
==References==
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