The job of operating school plants so as to utilize their potentialities in promoting an effective educational program is one that requires training, knowledges, skills, and services of a specialized nature. School officials in charge of school plant management are primarily responsible for developing an operating program that will meet this challenge. A thorough understanding of operational problems, careful planning, adequate supervision, and good judgment are essential to the development and management of this program. This bulletin, planned as a companion volume to "Organizing the Maintenance Program," OE-21002, deals with management aspects of school plant operation. It is hoped that these two publications will be useful to school officials and other people who are concerned with planning, organizing, improving, and administering school plan maintenance and operational programs. This bulletin has been prepared to give school district board members, superintendents, business managers, supervisors of maintenance and operations, principals, teachers, and school plant operating personnel a better understanding of some of the problems involved in providing adequate school building services. It brings together in one document many ideas, practices, and suggestions which have been used with success in various parts of the country. Contents include: (1) Introduction; (2) Determining Custodial Personnel Requirements; (3) Formulating Custodial Personnel Policies; (4) Defining Custodial Duties and Establishing Work Schedules; (5) Organizing and Conducting Custodial Training Programs; and (6) Procuring, Storing, and Distributing Supplies and Equipment. A selected bibliography is included. Individual chapters contain footnotes. (Contains 4 charts.) [Best copy available has been provided.]