CASS DPV & ZIP+4 Processing 5

Question 1

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

Accepted Answer

To improve the accuracy of ZIP+4 coding, carrier route coding, DPV, and LACSLink matching performed by address processing software

Answer

CASS certification ensures that address matching software meets USPS accuracy standards for ZIP+4 coding, carrier route assignment, DPV confirmation, and LACSLink conversion.

Question 2

How frequently must CASS-certified software vendors submit their software for recertification by the USPS?

Accepted Answer

Every 12 months

Answer

USPS requires CASS-certified software to be retested and recertified annually (every 12 months) to ensure it continues to meet accuracy standards as the USPS address database evolves.

Question 3

What information does USPS Form 3553 (CASS Summary Report) document for a mailing?

Accepted Answer

The results of CASS address processing including software certification date, match rates, and mailing date

Answer

Form 3553 summarizes the CASS processing run, documenting the certified software used, the date processed, and the ZIP+4 and DPV match statistics required for postage discount eligibility.

Question 4

Which of the following is NOT a function validated or certified under the CASS program?

Accepted Answer

Email address syntax validation

Answer

CASS covers physical address coding components—ZIP+4, carrier route, DPV, and LACSLink—but email address validation is not a USPS addressing function and is outside the CASS scope.

Question 5

What type of test data does the USPS provide to evaluate address software accuracy during CASS certification testing?

Accepted Answer

A standardized set of address records with pre-defined correct outputs against which software results are measured

Answer

The USPS supplies CASS test files containing known addresses with predetermined correct ZIP+4, carrier route, and DPV results; software output is compared against these known answers to calculate accuracy.

(CASS) Coding Accuracy Support System Certification Practice Test

(CASS) Coding Accuracy Support System Certification Practice Test

CASS DPV & ZIP+4 Processing 5