This paper describes the quality management function as practiced in highway construction. This function is displayed as an interrelated system, which identifies the main quality activities. Documents and records used in these activities are also reviewed. A model for multilevel quality management involvement is defined, encompassing contractors, engineers, and managers. The model describes the quality management tasks and the roles assumed in a scheme relating construction quality control, quality assurance, and the interface between them. The scheme can be applied to any construction domain and quality management organizational structure. The study advances the understanding of how quality management is performed and engages participants at several management levels.