Ohio Rev. Code Ann. § 3745.017
(A) As used in this section:
(B)
(1) The director of environmental protection may establish within the agency a program for providing compliance and pollution prevention assistance to regulated entities. Services provided under the program may include all of the following:
(C) Except as provided in division (D) of this section, information obtained or created by employees of the agency who administer the program when providing any of the services specified in division (B)(1) of this section shall be held confidential unless any of the following applies: