15-70-450. Cooperative agreement -- motor fuels taxes. In order to prevent the possibility of dual taxation of motor fuels purchased by Montana citizens and businesses on Indian reservations, the department and an Indian tribe may enter into a cooperative agreement. The department may, with the concurrence of the attorney general, include as a member of the negotiating team a representative of the department of justice who has expertise in Indian matters. The department of transportation shall report the status of cooperative agreement negotiations to the revenue and transportation interim committee. After negotiations are complete and if the legislature is not in session, the agreement must be presented to the committee for review and comment before the final agreement is submitted to the attorney general for approval pursuant to 18-11-105.