From July 29th to August 2^nd 2019, a workshop has been held in Beijing, P.R. China. Subject was the safety assessment of specific application utilised on train control systems on high-speed railways. The experts of CERSS gave an overview about the practice of the standard series EN5012X. They demonstrated the practice on a design layout created by the Chinese Railway along with more examples, too. Participants were staff of China Railway Test & Certification Centre (CRCC) and some suppliers. Client was DB International (Beijing) Co., Ltd..