If you need to apply for a preferential bus card for the elderly in Nanjing, you can go to the Zhihui Customer Service Center of Nanjing Citizen Card Company (No.8-34, Xi Li Nan, Chengzhong Hall, No.0/9, Yingtian Street, Chengnan Hall). The elderly can enjoy the preferential bus policy for the elderly aged 60-70 in Nanjing only by bringing the original and photocopy of their ID cards to the site to collect their photos on weekdays and applying for a citizen card without social security function.