What is the purpose of the Coding Accuracy Support System (CASS)?

The Coding Accuracy Support System (CASS) is designed primarily to ensure that addresses used in mailing are accurate and properly formatted. This is critical for effective mail delivery, as it helps mailers verify the validity of addresses and correct any errors before sending out mail. By running address lists through CASS, businesses can improve the deliverability of their mail by ensuring compliance with the United States Postal Service (USPS) standards. This system helps reduce the number of undeliverable mail pieces and can ultimately lead to cost savings and increased efficiency in mail campaigns.

The other options do not relate directly to CASS's primary function; for instance, providing marketing strategies or estimating delivery times are outside the scope of what CASS is intended to do, and assisting with customer surveys is not a focus of this system either.