CASS Address Matching & Standardization 2 — Questions and Answers
Question 1: When CASS software encounters '123 Main St NW' and the USPS database has '123 Main Street Northwest', what is the correct standardized output?
- 123 Main St NW (Correct answer)
- 123 Main Street NW
- 123 Main ST NW
- 123 MAIN ST NW
Correct answer: 123 Main St NW
CASS standardization uses USPS-approved abbreviations, so 'St' and 'NW' are the correct abbreviated forms per Publication 28.
Question 2: Which ZIP+4 component identifies the specific delivery point within a carrier route?
- The first five digits
- The 6th and 7th digits of the +4 code
- The last two digits of the +4 code (Correct answer)
- The carrier route code
Correct answer: The last two digits of the +4 code
The last two digits of the ZIP+4 code identify the delivery point within the sector/segment defined by the first two digits of the add-on code.
Question 3: An address input is '456 Elm Avenue Apt 3B, Chicago IL 60614'. After CASS processing, the secondary designator should appear as:
- Apt 3B
- APT 3B (Correct answer)
- APARTMENT 3B
- SUITE 3B
Correct answer: APT 3B
CASS standardization converts all address components to uppercase and uses USPS-approved abbreviations like APT.
Question 4: What does a DPV (Delivery Point Validation) confirmation indicator of 'S' mean?
- The address is fully valid at the primary number level
- The address matched only to the primary number, with secondary info unconfirmed (Correct answer)
- The address is a false positive requiring manual review
- The address matched with secondary unit data missing
Correct answer: The address matched only to the primary number, with secondary info unconfirmed
A DPV indicator of 'S' means the primary number matched but secondary information (like apartment number) could not be confirmed.
Question 5: Under CASS certification rules, how often must mailers reprocess their address files to maintain presort discounts?
- Every 6 months
- Every 12 months
- Within 185 days of the mailing date (Correct answer)
- Every 90 days
Correct answer: Within 185 days of the mailing date
USPS requires that address lists used for presort mailings must be CASS-processed within 185 days prior to the mailing date.
Question 6: Which CASS output field indicates whether an address is on a residential or business delivery route?
- DPV Footnote
- RDI (Residential Delivery Indicator) (Correct answer)
- LACSLink indicator
- SuiteLink return code
Correct answer: RDI (Residential Delivery Indicator)
The RDI (Residential Delivery Indicator) flag identifies whether a delivery point is classified as residential or commercial/business.
Question 7: When CASS software cannot match an input address to any record in the USPS database, what is the appropriate action?
- Delete the record from the mailing list
- Assign the ZIP Code centroid coordinates and move on
- Flag the record as undeliverable and exclude from presort discounts (Correct answer)
- Assign the nearest matching ZIP+4 code
Correct answer: Flag the record as undeliverable and exclude from presort discounts
Unmatched addresses should be flagged as undeliverable and cannot receive presort automation discounts under USPS standards.
CASS Address Matching & Standardization 2
When CASS software encounters '123 Main St NW' and the USPS database has '123 Main Street Northwest', what is the correct standardized output?