Ohio Rev. Code § 3742.15: Complaints.

Any person may file a complaint with the director of health concerning a lead inspector, a lead abatement contractor, a lead risk assessor, a lead abatement project designer, a lead abatement worker, a clearance technician, a clinical laboratory, an environmental lead analytical laboratory, or a training course. The complainant's name shall be confidential and shall not be released without the complainant's written consent. The director may investigate the complaint and take action under this chapter as the director considers appropriate.