MASS™ Technical Guide for Cycle O

This document provides a technical guide for MASS™ Cycle O. MASS™ is an extension of the CASS™ system.

MASS™ Technical Guide for Cycle O

This document provides a technical guide for MASS™ Cycle O. MASS™ is an extension of the CASS™ system.

MASS™ Technical Guide for Cycle N

This document provides a technical guide for MASS™ Cycle N. MASS™ is an extension of the CASS™ system.

MASS™ Technical Guide for Cycle N

This document provides a technical guide for MASS™ Cycle N. MASS™ is an extension of the CASS™ system.

CASS™ Technical Guide for Cycle N

This document provides a technical guide for the CASS™ product. The CASS™ certification process is designed in cooperation with the mailing industry to improve the accuracy of addresses for mail qualifying for postal discounts.

2009-2010 MASS™ Technical Guide for Cycle M

Z4 Info File Layout

This data file presents a table of codes for primary and secondary numbers to describe Z4Info files.

CASS™ and MASS™ Guidelines

CASS™ and MASS™ Guidelines