ISO / TS16949 is the technical specifications of the international automotive industry, is based on the basis of ISO9001, and added to the technical specifications of the automotive industry. This specification is complete and ISO9000: 2000 is consistent, but more focused on defect prevention, waste reduction and quality fluctuations in the automotive parts supply chain prone. ISO / TS16949 is an international automotive industry, technical specifications, its relevance and applicability is very clear: This specification applies only to automotive OEMs and their spare parts manufacturers directly. These manufacturers must be directly related to the production of automotive-related manufacturing activities can be carried out, and through such activities so that products can add value. The company manufacturers for certification of eligibility, has strict limits. Only those units with support functions, such as design centers, corporate headquarters and distribution centers, etc., can not be obtained ISO / TS16949 Independence: 2002 certification. For those manufacturers manufacturing equipment and tools for vehicle manufacturers or manufacturers of automotive spare parts can not be obtained ISO / TS16949: 2002 certification. Therefore, ISO / TS16949: 2002 implementation, will have a direct impact on the Big Three auto companies and their spare parts manufacturer and supplier. ISO / TS16949 special focus on manufacturers of finished products and the ability of this system to achieve quality finished product. It think this is the basis of the activities of the entire manufacturing process. Another feature is that it is a special focus on the effectiveness of an organization's quality management system. ISO / TS16949: 2002 audit by the transition from a single element of an audit into the audit process. A process of review will focus on user-centered. It is to assess the activities of the manufacturers according to the user's requirements around user satisfaction to measure the performance of manufacturers. In addition, the three major automobile manufacturers, their suppliers have raised the special requirements of the product, and ISO / TS16949: 2002 audit, including a process to meet these requirements review. ISO / TS16949 the user's requirements and technical specifications on the equally important position. Therefore, the certification company for manufacturers of certification audit, a lot of places like the second party audit. ISO / TS16949: 2002 One of the main features is that it is recognized by the IATF a single global quality system standards and registration procedures. Mutual recognition will reduce the second and third party audits, cost savings for manufacturers. In addition, with respect to the document review, TS16949 more attention to the audit process. Because ISO / TS16949: 2002 already contains the ISO9001: 2000 for all content, so obtaining ISO / TS16949: 2000 certification, also marks the line with ISO9001: 2000 standards.