Core Viewpoint - The transition to a paperless ticketing system in China's railway industry is set to be completed by October 1, 2023, with paper reimbursement vouchers being fully replaced by electronic invoices, marking a significant shift in passenger travel experience and operational efficiency [1][2]. Group 1: Transition to Electronic Invoicing - The railway department has mandated that from October 1, 2023, paper reimbursement vouchers will no longer be issued, and electronic invoices will take their place [1][2]. - The shift towards electronic ticketing began in November 2018, with the first pilot program launched on Hainan's circular high-speed railway [1]. - By June 2020, electronic tickets were implemented nationwide, allowing passengers to travel using only their valid ID [1]. Group 2: Electronic Invoice Process - Passengers can obtain electronic invoices exclusively through the official railway 12306 platform, with options to preview or download invoices in PDF or OFD formats [2]. - Electronic invoices must be requested within 180 days after the journey or after payment for ticket changes or refunds, and they can only be issued for the passenger's own tickets [2]. Group 3: Addressing Concerns for Elderly Passengers - Concerns have been raised regarding elderly passengers' ability to navigate the new electronic system; however, solutions are in place [3]. - After the cessation of paper vouchers, passengers can still print journey information slips at self-service machines in stations, which will include essential travel details [3].