Provides an informational framework to aid in the development of standards of performance for HVAC&R equipment, plumbing systems, and building envelopes sytems in relationship to maintaining good IAQ. This is recommended for commissioning agents, building owners, facility engineers and maintenance staffs and is ideal for anyone that wants to apply a SOP process to improve building IAQ and increase occupant comfort, satisfaction and productivity. It is written and structured to appeal to a wide audience with varying levels of technical skills by providing general information in the beginning chapters and becoming more detailed as one progresses through the guide. ASHRAE Research Project 853.