ISO/TS16949 is a technical specification of the international automobile industry, its pertinent and applicability is very clear: this specification is only applicable to the automobile plant and its direct spare parts manufacturers. These manufacturers must be directly related to the production of automobiles and be able to carry out manufacturing activities and add value to the products through such activities. On the certification of the company manufacturer qualification, there are strict limits. Those units with only support functions, such as design centers, corporate headquarters and distribution centers, do not independently obtain ISO/ TS16949:2009 certification. For those who manufacture equipment and tools for vehicle manufacturers or automobile spare parts manufacturers, also can not obtain ISO/ TS16949:2009 certification. Therefore, the implementation of ISO/TS16949:2009, the three major automobile companies and their spare parts manufacturing suppliers will have a direct impact. ISO/TS16949 pays special attention to the manufacturer's finished products and the ability to achieve the quality system of the finished products. It believes that this is the basis of the activity of the entire manufacturing process. Another feature is that it focuses specifically on the effectiveness of an institution's quality management system. ISO/TS16949 is recognized by IATF as a single global quality system standard and registration procedure. Mutual recognition will reduce second and third party audits and save costs for manufacturers. In addition, relative to the document audit, TS16949 pay more attention to the process of the audit.