CASS USPS Addressing Standards & Compliance 4 — Questions and Answers
Question 1: Which data element in a CASS output record indicates whether an address is classified as a business or residential location?
- DPV Confirmation Indicator
- RDI (Residential Delivery Indicator) (Correct answer)
- LACSLink Return Code
- ZIP Type Code
Correct answer: RDI (Residential Delivery Indicator)
The Residential Delivery Indicator (RDI) flags whether a delivery point is classified as residential or commercial/business.
Question 2: A CASS run produces a match rate of 72% for a list of 50,000 addresses. What is the minimum USPS-required match rate to qualify for automation discounts?
- 90%
- 95%
- 85%
- There is no minimum; any CASS-processed file qualifies (Correct answer)
Correct answer: There is no minimum; any CASS-processed file qualifies
USPS does not impose a minimum CASS match rate to qualify a mailing for automation discounts; the certification validates the software, not the list quality.
Question 3: What format must a CASS Form 3553 be submitted in after completing address standardization?
- It must be submitted electronically via PostalOne!
- It is printed and physically mailed to the USPS National Customer Support Center
- It is retained by the mailer and presented at the time of mailing (Correct answer)
- It is automatically transmitted by CASS-certified software
Correct answer: It is retained by the mailer and presented at the time of mailing
The completed CASS Form 3553 summary report must be retained by the mailer or mail preparer and presented with the mailing at the time of entry.
Question 4: In USPS addressing, what distinguishes a 'last line' from a 'delivery address line'?
- The last line contains recipient name; delivery address contains street info
- The last line contains city, state, and ZIP; delivery address contains street and secondary info (Correct answer)
- The last line is optional; delivery address is mandatory
- The last line is used for PO Boxes only
Correct answer: The last line contains city, state, and ZIP; delivery address contains street and secondary info
The delivery address line carries the street number, street name, and any secondary designator, while the last line carries city, state, and ZIP Code.
Question 5: Which statement about CASS certification cycle is correct?
- Software vendors must recertify every 6 months
- CASS certification is permanent once granted
- Software must be recertified annually by November 1 (Correct answer)
- CASS certification expires after each major USPS database update
Correct answer: Software must be recertified annually by November 1
USPS requires CASS-certified software to be recertified each year, and the certification cycle typically runs through November 1.
Question 6: When standardizing Puerto Rico addresses, which unique addressing element must CASS software correctly handle that mainland US addresses do not typically use?
- Colonia (neighborhood) names in the urbanization field (Correct answer)
- Dual-language street names
- Four-digit box identifiers
- Province codes instead of state codes
Correct answer: Colonia (neighborhood) names in the urbanization field
Puerto Rico addresses commonly include an Urbanization name that identifies the neighborhood or development, placed above the street address line.
Question 7: A mailer uses 'ST' as the street suffix on an input address that should be 'SAINT' (as in 'SAINT CHARLES'). How should CASS software handle this?
- Reject the address as ambiguous
- Resolve 'ST' to the correct interpretation using contextual database matching (Correct answer)
- Always interpret 'ST' as 'STREET'
- Flag the record for manual review without processing
Correct answer: Resolve 'ST' to the correct interpretation using contextual database matching
CASS software uses the AMS database context to disambiguate 'ST' between 'STREET' and 'SAINT' based on what matches the known address inventory.
CASS USPS Addressing Standards & Compliance 4
Which data element in a CASS output record indicates whether an address is classified as a business or residential location?