The report describes the program of training for foreign students conducted by the Office of International Training of the Agency for International Development (AID). The report's first chapter describes the history, nature, and importance of participant training and diagrams the administrative structure of the program. Chapter 2 describes the program's participants and specifies their fields of training, occupational level, and average age. Chapter 3 describes the types of training AID participants receive: academic, observation, on-the-job, specialized, and AID-sponsored training in other countries. Chapter 4 concerns the training process: selection and preparation abroad, orientation in the U.S., role of the development training specialist, academic preparation, and evaluation and followup. Chapter 5 describes complementary programs: community organizations, universities, special additive programs, the Michigan State University Communication Workshop, a civic participation workshop, executive management training, population/family planning seminars, and programs with private enterprise. Chapter 6 projects the orientation of participant training for the 1970s. One appendix tabulates the number of participants trained in the U.S. by contractor (universities and other organizations); four other appendixes tabulate the number of participants trained in the U.S. and other countries by country or origin and field of training. (JR)