There are no internal services.
Traffic drives on the left.
The main routes run north from Phuntsholing to the western and central regions of Paro and Thimphu, and east-west across the Pele La Pass linking the valleys of the eastern region. The northern regions of the High Himalayas have no roads. Those services which were formerly government-owned are now privately run, though yaks, ponies and mules are the chief forms of transportation. The main routes are from Phuntsholing to Thimphu, Thimphu to Bumthang, Bumthang to Tashigang, Tashigang to Samdrup Jongkar and from Tongsa to Gaylegphug. International Driving Permit is required.