This document contains criteria and guidelines for establishing and implementing a quality management system for use by a construction materials laboratory (CML). These criteria may also be used by laboratory-evaluating agencies. The criteria in this document only apply to the following testing areas: soil@ aggregate@ asphalt binder@ cutback asphalt@ emulsified asphalt@ hot mix asphalt@ hydraulic cement@ portland cement concrete@ unit masonry@ metals@ and structural steel coatings.