Oregon Revised Statutes Revenue and Taxation § 319.382

Notwithstanding any other provision of law, the Department of Transportation may enter into agreements with the governing body of any Indian tribe residing on a reservation in Oregon to provide refunds to the tribe of state motor vehicle fuel taxes for fuel purchased on the reservation and used by tribal members on tribal reservation lands, other than for motor vehicle fuel used on state highways, county roads or city streets supported by the State Highway Fund.