This booklet discusses changes taking place in the four major processes involved in preparing and certifying teachers: national accreditation, state program approval, state certification, and teacher preparation. Some of the major issues affecting these processes, such as teacher competency testing and teaching internships, are discussed, and the impact of changes in these four processes are examined. Three specific areas are identified as in need of strengthening: (1) evaluation of teacher preparation programs, including national accreditation and state program approval; (2) requirements for entering and remaining in the profession, including certification regulations and procedures; and (3) preparation of teachers, including program entrance and exit requirements. Case studies are presented of successful reforms in Florida, Oklahoma, and the University of Louisville (Kentucky). (JD)