http://asia.businesstraveller.com/asia-pacific/news/new-policy-for-chinas-high-speed-rail-tickets ID required for China high-speed rail tickets China’s Ministry of Railway has announced a new policy for passengers purchasing high-speed rail tickets from June 1, 2011, requiring them to produce some form of identification. Local and foreign passengers buying tickets for C, D or G train services – codes which refer to high-speed services - will need to provide documentation in the interest of increasing security and avoiding illegal sales of these passes.