CASS Address Hygiene & Data Quality 3 — Questions and Answers
Question 1: A mailer has 10,000 records. After CASS processing, 8,500 achieve ZIP+4 coding. What is the ZIP+4 coding accuracy rate?
- 85% (Correct answer)
- 80%
- 90%
- 75%
Correct answer: 85%
8,500 divided by 10,000 equals 0.85, or 85% ZIP+4 coding accuracy.
Question 2: What minimum ZIP+4 coding rate must a mailing achieve to qualify for automation presort discounts?
- 90% (Correct answer)
- 85%
- 95%
- 80%
Correct answer: 90%
USPS requires at least 90% of the mailing to be ZIP+4 coded for automation presort discount eligibility.
Question 3: Which of the following best describes 'address standardization' in the context of CASS processing?
- Reformatting addresses to conform to USPS addressing conventions (Correct answer)
- Removing duplicate records from a mailing list
- Assigning carrier route codes
- Verifying that a person lives at an address
Correct answer: Reformatting addresses to conform to USPS addressing conventions
Address standardization means reformatting address components (abbreviations, spelling, format) to match USPS conventions.
Question 4: An address listed as '100 N. Oak Street Northwest' should be standardized to which USPS format?
- 100 N Oak St NW (Correct answer)
- 100 North Oak Street NW
- 100 N. Oak Street NW
- 100 N Oak Northwest
Correct answer: 100 N Oak St NW
USPS Publication 28 requires directionals and street suffixes to use official abbreviations without punctuation.
Question 5: What does the term 'seed records' refer to in a CASS accuracy test?
- Known test addresses inserted into a file to evaluate software performance (Correct answer)
- Addresses with missing ZIP Codes
- Records flagged as undeliverable by DPV
- Carrier route-level summary records
Correct answer: Known test addresses inserted into a file to evaluate software performance
Seed records are test addresses with known correct outcomes, embedded in a file to measure how accurately the software processes them.
Question 6: A record shows delivery address '600 Pennsylvania Ave NW, Washington DC 20500'. The ZIP+4 code on file is 20500-0003. What is the delivery point code for this record?
- A two-digit number derived from the primary and secondary address numbers (Correct answer)
- The first two digits of the ZIP Code
- The last four digits of the ZIP+4
- The carrier route ID
Correct answer: A two-digit number derived from the primary and secondary address numbers
The delivery point code (DPC) is a two-digit number derived from the last digits of the primary address number (and secondary if present).
Question 7: Which USPS product identifies addresses that have been converted from one style to another due to 911 emergency response re-addressing?
- LACSLink (Correct answer)
- SuiteLink
- NCOALink
- DPV
Correct answer: LACSLink
LACSLink (Locatable Address Conversion System) converts old-style addresses to new 911-compliant street-style addresses.
CASS Address Hygiene & Data Quality 3
A mailer has 10,000 records.
After CASS processing, 8,500 achieve ZIP+4 coding.
What is the ZIP+4 coding accuracy rate?