Ohio Revised Code Title XLIX. Public Utilities § 4933.17

(A) If the proposed consumer is a freeholder who is financially responsible or a person who is able to give a reasonably safe guaranty in an amount sufficient to secure the payment of bills for sixty days' supply;

(B) If the security is not demanded within thirty days of the initiation of service, except that this division does not apply where the account of a customer is in arrears.

In case no such security can be furnished, a deposit not exceeding an amount sufficient to cover an estimate of the monthly average of the annual consumption by such consumer plus thirty per cent may be required, upon which deposit interest at the rate of not less than three per cent per annum shall be allowed and paid to the consumer, provided it remains on deposit for six consecutive months.

Any person, firm, or corporation convicted of a violation of this section shall forfeit all right to collect or receive any sum from such consumer for gas, natural gas, water, or electricity so furnished.

The making of any rule or requirement in conflict with this section, is forbidden, and hereby declared to be unlawful.