Ohio Rev. Code Ann. § 1725.06

Any board of trade, chamber of commerce, merchants' exchange, or other kindred association organized in this state may avail itself of the privileges and powers, in whole or in part, conferred by section 1725.01 to 1725.04 of the Revised Code, by making a certificate of its adoption of those sections, under its seal, attested by the signatures of any authorized officer, which certificate shall be filed in the office of the secretary of state, and when so filed shall confer all privileges and power defined in it.