The former Ministry of Railways and the Certification and Accreditation Administration (CNCA) jointly issued the Administrative Measures for Railway Product Certification in 2012, specifying that product certification becomes a key criteria for the use of special railway products. Both compulsory product certification and voluntary product certification are adopted for railway product certification.
The admissible catalogue of railway product certification is formulated, adjusted and published by the Ministry of Railways, which carries out the voluntary product certification management. Railway products under compulsory product certification management which are included in the Admissible Catalogue shall not be used in the railway field prior to obtaining certification. Certification body and testing bodies engaged in compulsory product certification shall be designated by the CNCA. Certification body engaged in product certification covered in the Admissible Catalogue shall be approved by the CNCA and confirmed by the Ministry of Railways.