Ohio Const. art. II, § 1b

When at any time, not less than ten days prior to the commencement of any session of the general assembly, there shall have been filed with the secretary of state a petition signed by three per centum of the electors and verified as herein provided, proposing a law, the full text of which shall have been set forth in such petition, the secretary of state shall transmit the same to the general assembly as soon as it convenes. If said proposed law shall be passed by the general assembly, either as petitioned for or in an amended form, it shall be subject to the referendum. If it shall not be passed, or if it shall be passed in an amended form, or if no action shall be taken thereon within four months from the time it is received by the general assembly, it shall be submitted by the secretary of state to the electors for their approval or rejection, if such submission shall be demanded by supplementary petition verified as herein provided and signed by not less than three per centum of the electors in addition to those signing the original petition, which supplementary petition must be signed and filed with the secretary of state within ninety days after the proposed law shall have been rejected by the general assembly or after the expiration of such term of four months, if no action has been taken thereon, or after the law as passed by the general assembly shall have been filed by the governor in the office of the secretary of state. The proposed law shall be submitted at the next regular or general election occurring subsequent to one hundred twenty-five days after the supplementary petition is filed in the form demanded by such supplementary petition, which form shall be either as first petitioned for or with any amendment or amendments which may have been incorporated therein by either branch or by both branches, of the general assembly. If a proposed law so submitted is approved by a majority of the electors voting thereon, it shall be the law and shall go into effect as herein provided in lieu of any amended form of said law which may have been passed by the general assembly, and such amended law passed by the general assembly shall not go into effect until and unless the law proposed by supplementary petition shall have been rejected by the electors. All such initiative petitions, last above described, shall have printed across the top thereof, in case of proposed laws: "Law Proposed by Initiative Petition First to be Submitted to the General Assembly." Ballots shall be so printed as to permit an affirmative or negative vote upon each measure submitted to the electors. Any proposed law or amendment to the constitution submitted to the electors as provided in 1a and 1b, if approved by a majority of the electors voting thereon, shall take effect thirty days after the election at which it was approved and shall be published by the secretary of state. If conflicting proposed laws or conflicting proposed amendments to the constitution shall be approved at the same election by a majority of the total number of votes cast for and against the same, the one receiving the highest number of affirmative votes shall be the law, or in the case of amendments to the constitution shall be the amendment to the constitution. No law proposed by initiative petition and approved by the electors shall be subject to the veto of the governor.