This document is one of twelve describing the Career Planning Support System (CPSS) and its use. (CPSS is a comprehensive guidance program management system designed to provide information for local high schools to design, implement, and evaluate an upgraded career guidance program. CPSS describes how existing activities can be brought into an integrated systematic approach for the delivery of career guidance services which would enable teachers, counselors, students, and community members to decide on a specific program to be followed.) This document, directed at career development instructors, focuses on how to produce career development units (CDUs), defined as a teaching and/or counseling activity designed and written to establish methods for helping students achieve the behavioral objective for all or part of a given goal.) Procedures are detailed for the CDU format and evaluation. Appendixes contain additional information on behavioral objectives, a sample CDU (which outlines goal, objectives, instructors, infusion points, participants, schedule, methods, resources, and evaluation), and instructions for completing CDU evaluation forms. (TA)