Okla. Stat. tit. 62, § 158

There is hereby created in the State Treasury a revolving fund for the Teachers' Retirement System of Oklahoma, to be designated "The Teachers' Retirement System Revolving Fund". The fund shall consist of monies deposited to said fund by the Board of Trustees of the Teachers' Retirement System of Oklahoma, or pursuant to said Board's authorization. The revolving fund shall be a continuing fund not subject to fiscal year limitations and shall be under the administrative direction of the Board of Trustees of the Teachers' Retirement System of Oklahoma. Expenditures from said fund shall be made pursuant to general laws for expenses of administration of the Teachers' Retirement System. Warrants for expenditures shall be drawn by the State Treasurer based on claims signed by an authorized employee or employees of the Teachers' Retirement System and approved for payment by the Director of the Office of Management and Enterprise Services.