Okla. Stat. tit. 68, § 6512

There is hereby created in the State Treasury a revolving fund for the Oklahoma Department of Transportation to be designated the "Driving on Road Infrastructure with Vehicles of Electricity (DRIVE) Revolving Fund". The fund shall be a continuing fund, not subject to fiscal year limitations, and shall consist of all monies received by the Department of Transportation from sources provided by law. All monies accruing to the credit of said fund are hereby appropriated and may be budgeted and expended by the Department of Transportation for the purpose of administering the provisions of this act. Expenditures from said fund shall be made upon warrants issued by the State Treasurer against claims filed as prescribed by law with the Director of the Office of Management and Enterprise Services for approval and payment.