This study presents a descriptive overview of 20 alternative certification and retraining programs and reports on 10 of them in depth. Specific questions addressed in the study include: (1) What are the characteristics of individuals being attracted to such programs and of the programs themselves? (2) How successful are programs in preparing teachers, particularly for math and science classrooms? (3) What are participants' career goals and how successful are they in finding permanent teaching positions? and (4) What are the perceptions of current faculty and administrators regarding alternative certification and retraining? These questions were explored principally through analysis of data collected in telephone interviews with program administrators, program participants and their supervisors, and traditionally prepared teachers who had contact with the participants. Documents provided by the program were also examined. Appendices include a list of study methods, descriptions of 10 programs, overviews of supplementary sample of programs, and an annotated bibliography of over 50 items. (JD)