CASS™/ MASS™ Guidelines CD-ROM

The CASS/MASS Guidelines CD-ROM is a single source containing all CASS- and MASS-related information. Reference material includes technical guides, address-matching guidelines, as well as the CASS/MASS guidelines.  There are also search capabilities throughout.

The CD-ROM is available by calling the National Customer Support Center's CASS Department at 800-642-2914.