Okla. Stat. tit. 3 § 91
There is hereby created in the State Treasury a revolving fund for the Oklahoma Department of Aerospace and Aeronautics to be designated as the Oklahoma Department of Aerospace and Aeronautics Revolving Fund. The fund shall be a continuing fund, not subject to fiscal year limitations, and shall consist of a monthly allocation by the Oklahoma Tax Commission of Three Thousand Dollars ($3,000.00) from the motor fuel excise tax levied and collected pursuant to the provisions of Title 68 of the Oklahoma Statutes, such amount being a part of the estimated amount of tax paid on gasoline consumed by engines to propel aircraft in this state, sale of surplus property, fees and receipts collected pursuant to the Oklahoma Open Records Act, donations, gifts, bequests, contribution, devices, interagency reimbursements, federal funds unless otherwise provided by federal law or regulation, sale of leases and aircraft registration fees and taxes, fees authorized by Section 1135.5 of Title 47 of the Oklahoma Statutes or any other source. All monies accruing to the fund are hereby appropriated and may be budgeted and expended by the Oklahoma Department of Aerospace and Aeronautics for airport construction and rehabilitation programs, general operations of the agency, for promoting the awareness of aviation and aerospace, and providing financial support for aviation education programs to address the need for a skilled and competent aviation workforce. Expenditures from the 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.
Okla. Stat. tit. 3, § 91