A. It is the fiduciary duty of the Oklahoma Employment Security Commission to return overpayments received in the employer's unemployment tax account. Upon the termination of the employer's unemployment tax account, the Commission will issue a refund of any remaining credit balance that is equal to or greater than One Hundred Dollars ($100.00) by mailing it to the last address provided by the employer. If an employer's unemployment tax account has been terminated and has a credit balance that has been at that level for a period of one hundred eighty (180) days or more without a refund being requested from the employer, the Commission will reduce the balance of that unemployment tax account to zero (0) and consider the credit to be forfeited after the Commission has exercised its fiduciary duty.

B. Once the Commission has completed its fiduciary duty in facilitating the return of the credit to the employer, based upon the most current mailing address provided by the employer, the Commission can assume its fiduciary duty is completed. If the refund of the overpayment is returned to the Commission, the employer shall consider the funds forfeited and will be prohibited from requesting the credit balance in the future. All returns of overpayment shall be returned to the clearing account as set forth in Section 3-604 of this title.