What is the meaning of MA.ALCNAS in the inspection report? The meaning of MA in the national inspection report is qualified for measurement certification; the meaning of AL is qualified for quality certification; the meaning of CNAS is: China National Accreditation Committee for conformity Assessment China National Accreditation Committee for conformity Assessment. The meaning of MA in the national inspection report: means that the measurement certification is qualified. AL means: the quality certification is qualified. CNAS: China National Accreditation Committee for conformity Assessment, China National Accreditation Committee for conformity Assessment. Testing institutions with CM certification at or above the provincial level: 1. The second project quality supervision and inspection station in Anhui province. 2. In the courtyard of the Construction Hall, 28 Huancheng South Road, Hefei. 3. Anhui Provincial Institute of Product quality Supervision. No. 15 Target Road, Hefei; intersection of Danxia Road and Tiandu Road, Hefei Economic and technological Development Zone. The legal effect of the inspection report of the third-party testing institution: The inspection report of the third party inspection institution will be affixed with the official seal of the company and the seal of CMA or CNAS. The chapter of China Metrology Association is the metrology certification in China. According to Article 22 of the Metrology Law of the peoples Republic of China, "Product quality inspection institutions that provide notarized data to the society, must pass the examination of their metrological verification and testing ability and reliability by the metrological administrative departments of the peoples governments at or above the provincial level." Therefore, all product quality supervision and inspection institutions and other laboratories that release fair data to the public must obtain China Metrology Certification, that is, CMA certification. Only the inspection institutions that have obtained the qualification certificate of metrology certification can engage in the inspection work and allow them to use the CMA mark on the inspection report. The inspection report marked with CMA mark can be used for product quality evaluation, performance evaluation and judicial identification, and has legal effect.