Changchun Railway Vehicles Co., LTD (CRC) has delivered trains for Metro Line 15 in Beijing. The goal of CRC was to certify the SIL1 and SIL2 safety functions of the Train Control and Management System (TCMS) of these trains according to the relevant CENELEC safety standards (EN 50126, EN 50128 and EN 50129). ENOTRAC performed the necessary training of CRC engineers and managers in China. For the specification, analysis and demonstration of safety ENOTRAC prepared document templates and checklists to be used by CRC. ENOTRAC's role was to support CRC in the whole development and safety management process, to review all documents produced by CRC before they were sent to the Independent Safety Assessor, and to help CRC to improve the documents and the products in response to the ISA comments. The TCMS has successfully been certified according to EN 50126, EN 50128 and EN 50129 (SIL1 and SIL2) by the Independent Safety Assessor.