This is one of three companion volumes that present the theoretical basis, instructional strategies, and participant materials for the Preparing Educational Training Consultants: Organizational Development (PETC-III) program, an instructional system for training school system organizational development (OD) consultants. This particular publication is an instructional manual for use by the senior trainer in charge of the PETC-III program. Besides outlining instructional strategies for use during the workshop activities, it also includes a sample set of memos, work assignments, and additional resources to be mailed to program participants between workshops. The PETC-III program is one of eight instructional systems that together comprise the Providing Organizational Development Skills (PODS) programs, which is intended to provide educators with the knowledge, skills, and sensitivities to organize and manage educational systems in more relevant, humane, effective, and efficient ways. The eight component systems of PODS are most effective when taken sequentially; PETC-III is intended to be the last step in that sequence. The training design of PETC-III calls for five separate 3-4 day workshop sessions totaling 17 days, to be held during a period of 6-8 months. (JG)