Designed to assist persons who need to compare and use information obtained under various classification systems, this volume links the Department of Education vocational program categories in the new Classification of Instructional Programs (CIP) to the occupations in the Dictionary of Occupational Titles (DOT), the Standard Occupational Classification (SOC), the 1980 Census Occupational Classification, and to the Occupational Employment Statistics (OES) Survey and Standard Industrial Classification (SIC). This edition has three major sections. Covered first are the background behind the development of the code crosswalk, its potential uses and applications, the classification systems utilized in the crosswalk tables, and related references. In the second section, various references are provided, including lists of codes, code relationships and selected code applications from the various classification systems such as the DOT, SOC, Census, OES, SIC, and the CIP. The third section, arranged by major program areas, contains the crosswalk tables of the CIP program codes, titles and descriptors displayed with the related codes and titles from the DOT, the OES survey, the OES survey-based matrix, the SOC, and the 1980 census system. (MN)