To assure customer satisfaction@ aerospace industry manufacturers must produce world class quality products at the lowest possible cost. This document standardizes@ to the greatest extent possible@ the quality system requirements of the aerospace industry. Standardization of compliance requirements results in cost savings due to the elimination or reduction of unique requirements developed for each different customer. Quality Philosophy: Eliminating the causes of defects is paramount to continuous quality improvement. Process activities should@ to the greatest extent practicable@ be directed toward defect prevention methods@ such as statistical process control and variability reduction@ error proofing@ and visual controls@ rather than defect detection. Responsibility for quality ultimately rests with those organizations having ownership of the processes affecting product quality.