Okla. Stat. tit. 51, § 36.6

Every public officer or employee having taken and subscribed to the oath or affirmation required by this act and having entered upon the duties of his office or employment, who, while holding his office or while being so employed, advocates by the medium of teaching, or justifies, directly or indirectly, or becomes a member of or affiliated with the Communist Party or the Cominform, or with any party or organization, political or otherwise, known by him to advocate by the medium of teaching, or justify, directly or indirectly, revolution, sedition, treason or a program of sabotage, or the overthrow of the government of the United States or of the State of Oklahoma or a change in the form of government thereof by force, violence, or other unlawful means, shall be guilty of a Class C2 felony offense and, upon conviction, be punished by imprisonment as provided for in subsections B through F of Section 20M of Title 21 of the Oklahoma Statutes, and in addition thereto, the person shall forfeit his or her office or employment.