On December 17, 2020, at the second and third full Congress of railway BIM alliance, digital engineering certification alliance and railway BIM alliance signed a strategic cooperation agreement to jointly promote the construction of digital engineering system, standard R & D and certification activities in the railway field.

Dr. Wang Haishan, chairman of digital engineering certification alliance and chairman of China Construction Association Certification Center, signed the agreement on behalf of the alliance and delivered a speech entitled "standard leading, certification enabling, connection and symbiosis - Collaborative Construction of national quality infrastructure platform of railway digital engineering to promote high-quality development of industry". In his speech, Dr. Wang Haishan introduced the development of China's certification and accreditation system and digital engineering certification, as well as the necessity of building a national quality infrastructure platform for railway digital engineering, the framework of certification system and the prospect of international mutual recognition and international cooperation. Dr. Wang Haishan pointed out that it is of great significance to cooperate in the establishment of railway digital engineering certification system. In the digital era, the demand for data element flow will accelerate the development of unified standards and certification system. Only by establishing China's cross domain digital engineering standards, inspection and certification system can we have more voice in the world, It will also effectively promote the quality improvement of digital engineering in various fields and the development of service trade.