Okla. Stat. tit. 62, § 62-57.312: Investment of sinking fund monies - Deposit of

earnings.

The State Treasurer shall invest all sinking fund monies in

direct obligations of the United States of America or in

certificates of deposits from banks in the State of Oklahoma

acceptable as depositories by the State Treasurer when such

certificates of deposits are secured by acceptable collateral and

yield as much or more than direct obligations of the United States

of America, to mature in time to meet the principal and interest

payments on the Oklahoma Building Bonds of 1992. Such earnings

shall be deposited in the sinking fund, except that any funds

received pursuant to a contract entered into by the Office of the

State Treasurer for the investment of revenues dedicated for bond

repayment may be deposited in the Special Cash Fund of the State

Treasury.