Topics

The map of address cleansing

Each topic is a stop on the route from raw address text to data you can mail against, map, or trust in a system of record. Read in any order—or follow the getting started sequence.

01Address validationCheck whether an address is structurally complete and plausible before you treat it as deliverable.
02Address verificationConfirm that an address exists in authoritative reference data and can typically receive mail or deliveries.
03Standardization & formattingRewrite addresses into a consistent, preferred format so systems can compare, store, and print them reliably.
04GeocodingTurn an address into coordinates (and often a precision level) so maps, routing, and spatial analysis can use it.
05CASS certificationUSPS Coding Accuracy Support System—software certification and a process that improves ZIP+4 and delivery-point accuracy for US mail.
06NCOA — National Change of AddressUSPS-licensed process that updates addresses when people and businesses file official change-of-address moves.
07Deduplication & matchingFind and merge records that refer to the same place or household despite messy spelling and formatting differences.