This paper describes the planning and implementation of a 4-quarter, year-round program instituted for the 32,000 high school students enrolled in the Atlanta Public School System. The school district was faced with finding a pattern of organizational structure that would carry a flexible, changing curriculum and allow for the individual goals of students. After an examination of alternative plans, the school district selected the 4-quarter plan as the desired structure. The eight school systems in the metropolitan area worked independently as well as cooperatively to organize and develop an appropriate curriculum that is nongraded, nonsequential, and individualized. The new program requires more counseling with students and permits students to attend either three or four quarters as they wish. The paper provides answers to frequently asked questions about the Atlanta program and includes a list of new graduation requirements, a copy of the school calendar, and a bibliography on Atlanta's 4-quarter plan. (Author/DN)