Ohio Rev. Code § 5533.63: Marine Corps League Memorial Highway.

That portion of the road known as United States route thirty-three beginning in Willshire, Ohio, and running in a southeasterly and northwesterly direction through the counties of Van Wert, Mercer, Auglaize, Logan, Union, Franklin, Fairfield, Hocking, Athens, and Meigs to the West Virginia border shall be known as the "Marine Corps League Memorial Highway."

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