The local transport authority of Davos, Verkehrsbetriebe Davos VBD, sells individual tickets, day tickets (available on the bus), and various long-term tickets. The weekly, monthly, and year-around passes are issued on a chip card (deposit CHF 10). To buy a pass, you can leave the completed order form including a passport photo with the bus driver. Remember to bring enough cash to pay for the desired pass. Alternatively, stop by at the VBD office during opening hours.