CASS Address Hygiene & Data Quality 5 — Questions and Answers
Question 1: A mailer processes 50,000 records through CASS and receives a Form 3553. What is the primary purpose of this form?
- To certify and document the accuracy results of the CASS processing run (Correct answer)
- To request automation postage discounts
- To report undeliverable-as-addressed mail volume
- To register the mailing list with USPS
Correct answer: To certify and document the accuracy results of the CASS processing run
USPS Form 3553 is the CASS Summary Report that documents the coding accuracy results and must accompany presorted mailings.
Question 2: What is the definition of 'deliverability' in address quality measurement?
- The probability that a piece of mail will reach its intended recipient at the given address (Correct answer)
- The speed at which mail is sorted at a processing facility
- The percentage of addresses with ZIP+4 codes
- The number of records that pass DPV confirmation
Correct answer: The probability that a piece of mail will reach its intended recipient at the given address
Deliverability measures whether mail can actually be delivered to the specified address and recipient.
Question 3: Which of the following address components is NOT validated by standard CASS ZIP+4 coding?
- Occupant name (Correct answer)
- Street name
- Primary address number
- ZIP Code
Correct answer: Occupant name
CASS validates address components such as street names, numbers, and ZIP Codes, but does not verify whether the named occupant resides there.
Question 4: What does a DPV 'Vacancy' indicator mean for a confirmed delivery point?
- The delivery point is confirmed but currently shows no active occupant (Correct answer)
- The address does not exist in the USPS database
- Mail at this address is held at the post office
- The unit number is incorrect
Correct answer: The delivery point is confirmed but currently shows no active occupant
A DPV vacancy indicator means the address is real and deliverable but USPS has flagged it as having no current occupant.
Question 5: When standardizing a foreign address for a US-bound mailing, which line should contain the country name?
- The last line of the address block, in uppercase (Correct answer)
- The first line of the address block
- Below the recipient name
- It should not be included
Correct answer: The last line of the address block, in uppercase
USPS Publication 28 specifies that the country name should appear on the last line of the address in uppercase for international mail.
Question 6: A record returns a CASS footnote of 'G'. What does this indicate?
- The address matched a primary number that falls within a valid range (Correct answer)
- The address was undeliverable
- A PO Box was assigned
- The secondary address was corrected
Correct answer: The address matched a primary number that falls within a valid range
CASS Footnote G indicates the record matched to a valid address range in the USPS database even though the exact number wasn't individually listed.
Question 7: Which best practice helps prevent 'false positives' in address matching, where an incorrect address is matched to a real USPS record?
- Setting a minimum match score threshold before accepting a correction (Correct answer)
- Accepting all ZIP+4 matches regardless of confidence
- Using only the ZIP Code for matching
- Skipping DPV validation to speed up processing
Correct answer: Setting a minimum match score threshold before accepting a correction
Requiring a minimum confidence or match score threshold prevents low-quality matches from being accepted as valid corrections.
A mailer processes 50,000 records through CASS and receives a Form 3553.
What is the primary purpose of this form?