PostGrid Glossary Coding Accuracy Support System

Coding Accuracy Support System

The Coding Accuracy Support System (CASS) is a certification program by the USPS that aims to improve the accuracy of address matching and standardization software. Address Verification API utilizes CASS to ensure that addresses are correctly formatted, validated, and corrected according to USPS standards. This process enhances the accuracy and efficiency of mail delivery, reduces undeliverable mail, and helps businesses save on postage costs by ensuring that their mail reaches the intended recipients.

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