In 1998, CAAC and CNCA approved the establishment of the civil aviation Certification Center; in 2002, through the accreditation of the Accreditation Commission of China Certification Authority (cnas-069) in 2003, a joint venture with the world's largest inspection and insurance HSB company was changed into a Hartford global standard certification (Beijing) company. In 2004, the first batch of HACCP areas of the CDC was recognized. Qualification of evidence