Okla. Admin. Code § 710:1-5-12
Waiver of interest or penalty associated with a tax assessment or failure to file a return or report is within the discretionary authority of the Commission pursuant to the provisions of 68 O.S. §220. Requests for waiver of penalty or interest should be in writing, and addressed to the division which originated the tax assessment or liability notification.
Amended at 16 Ok Reg 2628, eff 6-25-99