The School District of Philadelphia, Pennsylvania, was ordered by the Commonwealth Court to begin a voluntary desegregation plan in February, 1979. To support the desegregation process, the school district applied for and received grants from the Emergency School Aid Act (ESAA) to develop programs around eight basic models: pairing, enrichment, middle school alternatives, music and art programs, multilingual/multicultural programs, student concerns, child development centers, and curriculum magnets. The desegregation plan showed success on several levels. Despite a declining enrollment and the closing of some schools, the number of desegregated students and schools continued to increase. Students, teachers, and parents had positive impressions of the desegregation programs with which they were associated. Student interpersonal and intergroup relations improved significantly, and over half of the students who had been in desegregation programs for 2 years maintained or improved their national percentile ranks in reading and mathematics. As more students continue to participate in voluntary desegregation programs, the school district should increase efforts to develop more attractive programs and to create integrated environments within the desegregated schools. (Author/MJL)