Ohio Const. art. II, § 1e

(A) The powers defined herein as the "initiative" and "referendum" shall not be used to pass a law authorizing any classification of property for the purpose of levying different rates of taxation thereon or of authorizing the levy of any single tax on land or land values or land sites at a higher rate or by a different rule than is or may be applied to improvements thereon or to personal property.

(B)(1) Restraint of trade or commerce being injurious to this state and its citizens, the power of the initiative shall not be used to pass an amendment to this constitution that would grant or create a monopoly, oligopoly, or cartel, specify or determine a tax rate, or confer a commercial interest, commercial right, or commercial license to any person, nonpublic entity, or group of persons or nonpublic entities, or any combination thereof, however organized, that is not then available to other similarly situated persons or nonpublic entities.

(2) If a constitutional amendment proposed by initiative petition is certified to appear on the ballot and, in the opinion of the Ohio ballot board, the amendment would conflict with division (B)(l) of this section, the board shall prescribe two separate questions to appear on the ballot, as follows:

(a) The first question shall be as follows:

"Shall the petitioner, in violation of division (B)(l) of Section le of Article II of the Ohio Constitution, be authorized to initiate a constitutional amendment that grants or creates a monopoly, oligopoly, or cartel, specifies or determines a tax rate, or confers a commercial interest, commercial right, or commercial license that is not available to other similarly situated persons?"

(b) The second question shall describe the proposed constitutional amendment.

(c) If both questions are approved or affirmed by a majority of the electors voting on them, then the constitutional amendment shall take effect. If only one question is approved or affirmed by a majority of the electors voting on it, then the constitutional amendment shall not take effect.

(3) If, at the general election held on November 3, 2015, the electors approve a proposed constitutional amendment that conflicts with division (B)(l) of this section with regard to the creation of a monopoly, oligopoly, or cartel for the sale, distribution, or other use of any federal Schedule I controlled substance, then notwithstanding any severability provision to the contrary, that entire proposed constitutional amendment shall not take effect. If, at any subsequent election, the electors approve a proposed constitutional amendment that was proposed by an initiative petition, that conflicts with division (B)(l) of this section, and that was not subject to the procedure described in division (B)(2) of this section, then notwithstanding any severability provision to the contrary, that entire proposed constitutional amendment shall not take effect.

(C) The supreme court of Ohio shall have original, exclusive jurisdiction in any action that relates to this section.