This chapter introduces quality assurance and advocates that organisations undertake corporate planning to facilitate the adoption of a quality assurance system. It shows that competitive advantage can be gained through the application of a quality assurance system. Quality assurance is concerned with developing a formal structure, organisation and operational procedures designed to ensure the specified quality is attained throughout the total building process. The chapter outlines a construction project quality assurance system and identifies several quality management principles. It presents benefits of deploying a quality management system and also identifies problematic issues associated with implementation. The chapter considers issues concerning an organisation's culture when implementing a quality management system. It also presents a generic model for the implementation of a certified quality assurance system and also outlines costs associated with external certification. Project managers/site managers carry the burden of accountability for ensuring all site staff under their direction performs their duties in compliance with the project quality assurance system.