One hundred and forty-six school systems that had reported student participation in administration were sent followup requests for details. This circular, based on data provided by the 74 responding systems, begins with a summary of the data in the student organization tables. The areas of student participation in decisionmaking are (1) advisory committees to superintendents and boards of education, (2) advisory committees to principals, (3) representation on districtwide curriculum committees, (4) participation in curriculum planning in individual schools, and (5) representation on ad hoc advisory committees. The tables identify the school system, and describe the organizational structure and the responsibilities of each student committee. Samples of school board policies, an index to contributing schools, and resolutions on student involvement by educational organizations are included. (MLF)