What is DPV and LACSLink?

DPV stands for Delivery Point Validation. This is a method by which a specific address is validated. In the general CASS processing an address is considered valid as long as it falls within the range of addresses listed in the CASS database.For instance, the CASS database may give the range of valid addresses for Main Street in zipcode 77002 as being from 1000 to 1090. If you have an address in your mailing list of 1020 Main Street 77002, then the general CASS processing will consider this a valid address and assign it a Delivery Point Number even though there is a possibility that no such address really exists. DPV will double check that Delivery Point Number against another database to verify that 1020 Main Street 77002 is actually a valid address. If so, the CASS matching stands. If not, the address is not considered a CASS match and ZpClean Plus will return a code to let you know why the address was not matched. LACS stands for Locatable Address Conversion System. LACS enables ...  more