CASS CASS Deliverability & Return Mail Management

Question 1

What does a high undeliverable-as-addressed (UAA) rate primarily indicate about a mailing list?

Accepted Answer

The list contains outdated or inaccurate address data

Answer

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?

Accepted Answer

ADDRESS SERVICE REQUESTED

Answer

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?

Accepted Answer

Every 95 days

Answer

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?

Accepted Answer

To instruct USPS on how to handle undeliverable mail

Answer

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?

Accepted Answer

Address Element Correction (AEC)

Answer

Address Element Correction (AEC) identifies addresses with correctable errors before they result in UAA mail.

(CASS) Coding Accuracy Support System Certification Practice Test