This guide is intended to help the building design, engineering, and maintenance staff of school buildings maintain a common standard of high indoor air quality (IAQ) and a productive and comfortable workplace for students and staff. The report defines the four basic classifications of indoor environmental pollution, lists the factors impacting school environments, and provides strategies for preventing indoor environmental problems. Also outlined is the role of the school administration in preventing indoor environmental problems. The guide describes the building systems approach to attaining healthful IAQ control and examines the seven main indoor environment issues to consider during the program, design, and construction phases of a new school. (GR)