Constitution of the State of Ohio Art. II, § 1

The legislative power of the state shall be vested in a General Assembly consisting of a senate and house of representatives but the people reserve to themselves the power to propose to the General Assembly laws and amendments to the constitution, and to adopt or reject the same at the polls on a referendum vote as hereinafter provided. They also reserve the power to adopt or reject any law, section of any law or any item in any law appropriating money passed by the General Assembly, except as hereinafter provided; and independent of the General Assembly to propose amendments to the constitution and to adopt or reject the same at the polls. The limitations expressed in the constitution, on the power of the General Assembly to enact laws, shall be deemed limitations on the power of the people to enact laws.