CASS (Coding Accuracy Support System)
We test the accuracy of addresses and improve the accuracy of postal coding, such as ZIP+4.
NCOA (National Change of Address)
If a change of address has been filed with the USPS, we will automatically update the database with that new address.
DPV (Delivery Point Verification)
DPV allows verification of corrected addresses that are known by the USPS but may not have been captured in your database.