When driving in Japan, follow the rules and enjoy your drive!
Please make sure to check the following rules.

If you commit a traffic violation, please report it to us upon returning the vehicle and present the “Traffic Violation Notice” along with the “Payment Slip/Receipt” stamped with the payment confirmation.

If payment of the fine cannot be confirmed or if the penalty fee is not paid,
a charge of 50,000 yen will be applied.

Here are information about the petrol stations in Hakuba.
For the details including operation hours, please check each company’s official website.