Military vehicles are free of charge throughout the country; the province's police cars, fire trucks traveling free of charge in the province, such as Hubei Province, the police car running to Hunan will be charged;
Ambulances need to have hospitals to issue emergency notification or delivery of patients in order to be free of charge, if you drive an ambulance to pick up your girlfriend can not be free of charge;
There is also a large class of green cars for free cars, refers to the fresh live Agricultural products road transport "green channel", from 2005, in accordance with the unified deployment of the State Council, the Ministry of Transportation, in conjunction with the Ministry of Public Security, the State Council Corrective Action Office, the Ministry of Agriculture, the Ministry of Finance, the National Development and Reform Commission, the Ministry of Commerce and other departments to carry out the "green channel" construction work. Construction work. The car traveling on the green channel is the green pass car.