The China National Accreditation Service for Conformity Assessment (CNAS) is the national accreditation body of China, responsible for accrediting conformity assessment bodies such as laboratories, certification bodies, and inspection agencies. Established in 2006, CNAS operates under the guidance of the Certification and Accreditation Administration of the People's Republic of China (CNCA). CNAS plays a vital role in ensuring the competence and credibility of conformity assessment services within China, thereby promoting the acceptance of Chinese products and services in the global market.

CNAS collaborates extensively with international organizations to maintain the highest standards of accreditation. It is a full member of the International Laboratory Accreditation Cooperation (ILAC) and the International Accreditation Forum (IAF). Through its participation in these international bodies, CNAS engages in mutual recognition arrangements that facilitate the global acceptance of test and calibration results, certification, and inspection reports issued by accredited Chinese bodies. These collaborations help reduce technical barriers to trade and enhance China's integration into the global economy.

To uphold its mission, CNAS continuously improves its accreditation processes and criteria in line with international best practices. It provides a wide range of services, including accreditation of testing and calibration laboratories, certification bodies, and inspection agencies across various sectors such as healthcare, construction, and environmental management. By ensuring the quality and reliability of conformity assessment services, CNAS supports regulatory compliance, consumer protection, and industrial innovation. More detailed information about CNAS's initiatives and impact can be found on their official website.