Ohio Rev. Code § 3315.35
At the expiration of each school year of service as a teacher in the public schools of Ohio by a person who has benefited from a scholarship granted under sections 3315.33 to 3315.35 of the Revised Code, such person shall submit to the department of education and workforce a statement of service on a form provided for that purpose and certified by the superintendent of the school district in which the person has taught. Upon receipt of such statement in proper form, the board shall cancel the oldest notes given by such person covering the scholarship for one year and the interest accrued thereon. If for any reason a recipient of a scholarship ceases or, after licensure, fails to teach in the public schools of Ohio, except for death or total disability, or fails to file with the board by July first of each year a statement concerning the recipient's previous year's employment and address for the ensuing year, any and all unpaid or uncancelled notes and interest thereon shall become due and payable and the board shall transmit all such notes promptly to the treasurer of state and the treasurer of state shall enforce collection of the principal amount of any uncancelled or unpaid notes held by the treasurer of state and the interest thereon and shall deposit said sums so collected in the general revenue fund.
R.C. § 3315.35