Ohio Rev. Code Ann. § 5147.15

Except for articles manufactured in a county jail industry program established under section 5147.30 of the Revised Code, no articles other than those specified in section 5147.13 of the Revised Code shall be manufactured by the labor of prisoners in any jail or workhouse. This section does not prevent the employment by any political subdivision of any person so confined, elsewhere than within the jail or workhouse where that person has been committed.