Ohio Rev. Code § 4501.03
The registrar of motor vehicles shall open an account with each county and district of registration in the state, and may assign each county and district of registration in the state a unique code for identification purposes. Except as provided in section 4501.044 or division (A)(1) of section 4501.045 of the Revised Code, the registrar shall pay all moneys the registrar receives under sections 4503.02 and 4503.12 of the Revised Code into the state treasury to the credit of the auto registration distribution fund, which is hereby created, for distribution in the manner provided for in this section and section 4501.04 of the Revised Code. All other moneys received by the registrar shall be deposited in the public safety - highway purposes fund established in section 4501.06 of the Revised Code for the purposes enumerated in that section, unless otherwise provided by law.
All moneys credited to the auto registration distribution fund shall be distributed to the counties and districts of registration in the manner provided in section 4501.04 of the Revised Code.
The treasurer of state may invest any portion of the moneys credited to the auto registration distribution fund, in the same manner and subject to all the laws with respect to the investment of state funds by the treasurer of state, and all investment earnings of the fund shall be credited to the fund.
Once each month the registrar shall prepare vouchers in favor of the county auditor of each county for the amount of the tax collection pursuant to sections 4503.02 and 4503.12 of the Revised Code apportioned to the county and to the districts of registration located wholly or in part in the county auditor's county. The county auditor shall distribute the proceeds of the tax collections due the county and the districts of registration in the manner provided in section 4501.04 of the Revised Code.
All moneys received by the registrar under sections 4503.02 and 4503.12 of the Revised Code shall be distributed to counties, townships, and municipal corporations within thirty days of the expiration of the registration year, except that a sum equal to five per cent of the total amount received under sections 4503.02 and 4503.12 of the Revised Code may be reserved to make final adjustments in accordance with the formula for distribution set forth in section 4501.04 of the Revised Code. If amounts set aside to make the adjustments are inadequate, necessary adjustments shall be made immediately out of funds available for distribution for the following two registration years.
R.C. § 4501.03