Okla. Const. art. XXIV, § 1

Amendments proposed by Legislature - Submission to vote. Any amendment or amendments to this Constitution may be proposed in either branch of the Legislature, and if the same shall be agreed to by a majority of all the members elected to each of the two (2) houses, such proposed amendment or amendments shall, with the yeas and nays thereon, be entered in their journals and referred by the Secretary of State to the people for their approval or rejection, at the next regular general election, except when the Legislature, by a two-thirds (2/3) vote of each house, shall order a special election for that purpose. If a majority of all the electors voting on any proposed amendment at such election shall vote in favor thereof, it shall thereby become a part of this Constitution. No proposal for the amendment or alteration of this Constitution which is submitted to the voters shall embrace more than one general subject and the voters shall vote separately for or against each proposal submitted; provided, however, that in the submission of proposals for the amendment of this Constitution by articles, which embrace one general subject, each proposed article shall be deemed a single proposal or proposition. Amended by State Question No. 353, Referendum Petition No. 100, adopted at election held July 1, 1952; State Question No. 496, Legislative Referendum No. 199, adopted at election held on Aug. 27, 1974.