The Transport Department of Govt. of Bihar is entrusted with the responsibility of providing an efficient public transportation system, control of vehicular pollution, registration of vehicles in Bihar, issuance of Driving licences, issuance of various permits, collection of road taxes. The department also entrusted in policy-making, co-ordination, implementation, monitoring and regulatory functions of all the Transport related aspects of Bihar.
The Transport Department is regulated by the Government of Bihar in terms of policy formulation and its implementation. The Department is administered by the Transport Commissioner who is the Head of the Transport Department.