Ohio Revised Code Title XXXIII. Education Libraries § 3319.0811

If the board of education of a school district offers to students of compulsory school age courses for high school credit that are taught at times outside the district's normal school day, the board shall enter into supplemental contracts under section 3319.08 of the Revised Code with the teachers assigned to teach those courses and shall not include such assignment of duties within the teachers' regular employment contracts under that section.