CASS CASS Deliverability & Return Mail Management 1 — Questions and Answers
Question 1: What does a high undeliverable-as-addressed (UAA) rate primarily indicate about a mailing list?
- The list contains outdated or inaccurate address data (Correct answer)
- The postage rates are too low
- The mail pieces are too heavy
- The ZIP codes were recently reassigned
Correct answer: The list contains outdated or inaccurate address data
A high UAA rate indicates that address records have not been properly maintained or updated, leading to mail that cannot be delivered.
Question 2: Which USPS endorsement instructs the postal service to return undeliverable mail and provide the new address if available?
- RETURN SERVICE REQUESTED
- FORWARDING SERVICE REQUESTED
- ADDRESS SERVICE REQUESTED (Correct answer)
- CHANGE SERVICE REQUESTED
Correct answer: ADDRESS SERVICE REQUESTED
ADDRESS SERVICE REQUESTED instructs USPS to return the piece with the new address attached or dispose of it if not forwardable.
Question 3: Under USPS Move Update standards, how frequently must mailers update addresses for Standard Mail to avoid surcharges?
- Every 6 months
- Every 95 days (Correct answer)
- Annually
- Every 30 days
Correct answer: Every 95 days
USPS requires Standard Mail address lists to be updated within 95 days prior to the mailing date to comply with Move Update standards.
Question 4: What is the primary purpose of ancillary service endorsements on mail pieces?
- To qualify for automation discounts
- To instruct USPS on how to handle undeliverable mail (Correct answer)
- To indicate presort level
- To specify delivery priority
Correct answer: To instruct USPS on how to handle undeliverable mail
Ancillary service endorsements tell USPS what action to take—return, forward, or discard—when a mail piece cannot be delivered as addressed.
Question 5: Which tool does USPS provide to help mailers identify and correct addresses that are likely to become undeliverable?
- DPV (Delivery Point Validation)
- LACS Link
- Coding Accuracy Support System (CASS)
- Address Element Correction (AEC) (Correct answer)
Correct answer: Address Element Correction (AEC)
Address Element Correction (AEC) identifies addresses with correctable errors before they result in UAA mail.
Question 6: What happens to First-Class Mail that is undeliverable and has no forwarding order on file with USPS?
- It is held at the local post office indefinitely
- It is returned to the sender at no charge (Correct answer)
- It is discarded by USPS
- It is redirected to a national UAA center
Correct answer: It is returned to the sender at no charge
First-Class Mail without a forwarding order is automatically returned to the sender at no additional charge.
CASS CASS Deliverability & Return Mail Management 1
What does a high undeliverable-as-addressed (UAA) rate primarily indicate about a mailing list?