Ohio Const. art. II, § 29. No extra compensation

No extra compensation shall be made to any officer, public agent, or contractor, after the service shall have been rendered, or the contract entered into; nor shall any money be paid, on any claim, the subject matter of which shall not have been provided for by pre-existing law, unless such compensation, or claim, be allowed by two-thirds of the members elected to each branch of the General Assembly. Effective: September 1, 1851