Okla. Stat. tit. 52, § 476

Subject to the provisions to Section 4, hereof, if any part, section, subsection, paragraph, sentence, clause, phrase, or word contained in this act shall be held by the courts to be unconstitutional or invalid, such holding shall not affect the validity of the remaining portions of this act, and the Legislature hereby declares that it would have been enacted, and does here now enact, such remaining portions despite any such invalidity.