hi, i heard that all passengers must wear seat belts starting next month, including those sitting in the backseat. does this regulation apply to all cars, or just trucks? thank you

This provision applies to all cars. Those who fail to wear seat belts as required while the motor vehicles are running on expressways shall face a fine of RMB20 yuan, and those who fail to wear seat belts as required while the motor vehicles are running on roads other than expressways shall face a fine of RMB5 yuan.