AMO's “Improving Compressed Air System Performance: A Sourcebook for Industry, Third Edition” has been recently revised introducing industry to compressed air systems, performance opportunities and where they can find help on optimizing these important industrial systems. Over the years AMO has worked with the Compressed Air Challenge (CAC) in its development. CAC brings together the combined talents of compressed air system auditors, trade associations, equipment manufacturers and distributors, utilities, and government agencies in a collaborative effort to improve the performance of industrial compressed air systems.