This manual describes an approach to training provided by the Peace Corps that is known as community-based or Fully Integrated Training (FIT). FIT is a decentralized training program, in which trainees are divided into small groups and placed in separate communities for the duration of the preservice training program. The main part of the manual is organized in three chapters. Chapter 1 provides a basic overview of the training design, followed by a step-by-step guide to planning and developing a community-based training program. It deals in basic terms with setting up or structuring the program in the field. These steps are divided into major categories of logistics, community-based training content, and training seminars. Chapter 2 provides more detailed discussion of some of the key elements that define the decentralized training model: questions about decentralization, site selection, characteristics of the smaller training groups, integration of the elements of training, and the expanded role of both host-country national personnel and village-based staff. The discussions are illustrated with examples of how the model was implemented in some countries. The third chapter provides a more detailed discussion of the following issues presented in the first section: training content, staffing and staff training, administrative support, budget considerations, logistics, and inservice training (IST). The manual contains eight appendixes that include the following: housing criteria, site criteria, family checklist, and three case studies of community-based training in Guyana, Benin, and Sri Lanka. (KC)