This report briefly describes Philadelphia's Joint Public Parochial Planning Councils (JPC) project and presents an evaluation of the project's impact during the 1975-76 school year. The JPC project is intended to provide sustained interaction between the Philadelphia School District and the Archdiocese of Philadelphia. During 1975-76, 102 joint programs involving 354 teachers and 5,284 students from 66 public and 60 parochial schools were in operation. Data for the evaluation were gathered through onsite observation of joint programs, as well as separate questionnaires completed by a sample of principals, teachers, and students. Evaluators found that most JPC participants were satisfied with their program activities and credited the project with improving communications between public and parochial schools. Although the survey showed no significant change in student attitudes, teachers and students reported that intersystem social relationships were established and progressed throughout the year. Sample copies of the observational report form and the survey questionnaires are included in the appendix. (Author/JG)