The Ohio College Library Center's off-line catalog system is a limited technique for production of card catalogs. Unlike the on-line system, it cannotmake the resources of a region available to users in an individual institution, and it does not have the potential for significantly reducing rate of rise of library per-unit costs. In short, it is not a comprehensive, computerized cooperative library system, as is the on-line system. Nevertheless, the off-line system does effect economies that are particularly important to achieve prior to activation of the on-line system. This publication describes the materials and procedures employed to obtain catalog cards in an off-line mode. The manual discusses and illustrates the various types of punch cards used in the off-line system, and the information to be included on punch cards when a library requests catalog card production. (Related documents are LI 004 533 and 004 535.) (Author/SJ)