Okla. Stat. tit. 68 § 203
The Oklahoma Tax Commission is hereby authorized to enforce the provisions of Section 201 et seq. of this title and to promulgate and enforce any reasonable rules with respect thereto. The Tax Commission may also prescribe, promulgate and enforce all necessary rules for the purpose of making and filing of all reports required under any state tax law, and such rules as may be necessary to ascertain and compute the tax payable by any taxpayer subject to taxation under any state tax law; and may, at all times, exercise such authority as may be necessary to administer and enforce each and every provision of any state tax law. The Tax Commission is further authorized to require any person filing a report or return required by the provisions of any state tax law to file the report or return by electronic means. The Tax Commission is also authorized to allow a taxpayer to file a return on paper that is required by this title to be filed electronically.
Okla. Stat. tit. 68, § 203