Ohio Rev. Code § 153.68: Instituting prequalification requirements.

Any public authority planning to contract for professional design services may institute prequalification requirements for professional design firms seeking to provide services to the public authority and may require that each prequalified firm maintain a current statement of qualifications on file with the public authority. The prequalification requirements shall be based on factors such as those set out in division (D) of section 153.65 of the Revised Code.