A certification program implemented by the USPS® to govern the preparation
of bulk mailings. Basically, CASS (Calling Accuracy Support System) is
responsible for address hygiene and routing information that lowers postage costs,

speeds delivery, and reduces undeliverable mail.

CASS processing prepares your database by:

1. Cleanses and standardizes each element of an address to meet USPS standards.

2. Corrects input addresses and adds the proper postal information to produce a USPS compliant address. This includes ZIP + 4® code, carrier route code, delivery point barcode and Line of Travel (LOT)

information. These codes are required to print the barcode on each mail piece necessary for Automation discounts.

3. Adds missing address information and corrects misspelled address elements and converts addresses into a format that's readable by USPS automation equipment.

4. Results in the production of a CASS Form 3553 postal report, which is submitted with your mailings that qualified for automation discounts.

In order to qualify your mailings for discounts, you must use a current address-matching search engine from a vendor that is CASS CertifiedTM by the USPS.

For additional information please complete the form below, or call us at 800-960-5405.