The modular administrative structure implemented at Grand Valley State Colleges in 1973 is described as a system in which administrative affairs are divided into functional self-contained units called modules, each of which has a head or acting head who is responsible for the management of the functions contained within the module. A long-range modular evaluation plan is outlined in this report and the preliminary findings of two research studies of the modular administrative structure are presented. The attachments contain: the 1973 president's memorandum implementing the modular administrative structure; a copy of the interview questions asked of students, faculty, and administrators, and data obtained; and detailed results of the questionnaire sent to 35 unit heads. (SPG)