Ohio Rev. Code § 5533.71: Governor James E. Campbell Bicentennial Roadway.

In addition to the designation in section 5533.14 of the Revised Code, the road known as state route number four, commencing at the intersection of that road and High Street in the municipal corporation of Hamilton in Butler county and extending northeasterly to the intersection of that state route and central avenue in the municipal corporation of Middletown in that county, shall be known as the "Governor James E. Campbell Bicentennial Roadway."

The director of transportation may erect suitable markers along the highway indicating its name.