05/01/2006
Z4 Info File Layout
This data file presents a table of codes for primary and secondary numbers to describe Z4Info files.
03/08/2006
USPS-LR-L-61
This study provides comprehensive information on the volume, characteristics, and costs of Undeliverable-As-Addressed (UAA) and Personal-KnowledgeRequired (PKR) mail and on addressing deficiencies by rate category and applicable mail processing category.
12/01/2005
Electronic Address Sequencing (EAS) Processing Acknowledgement Form (PAF)
A mailer or a party acting on behalf of a mailer (Mailer), who submits an address list to the United States Postal Service (USPS) for Level 3 Address Sequencing Service must complete the this processing acknowledgement form (PAF).
04/28/2005
02/17/2005
Footnote Code Changes
As presented at the CASS PIT meeting on February 17, 2005, there are some changes to the Footnote codes and how to process records when there is no delivery type on a match. We would like to clarify the changes to the Footnote codes.
01/01/2005
11/08/2004
Letter to CASS™ Vendors
The USPS® Address Management office has determined that there is a small percentage of addresses that will produce a false positive match when presented to the DPV™ Split File Product.
Service Standard Platform File Layout
The Postal Service is looking to move ahead with service standard changes to support Delivering for America network changes. We intend to continue providing service standard data files for customer use to determine the number of days in transit. This tech sheet will provide the current and future proposed file layouts to help customers understand upcoming changes associated with the proposed changes.