W. Va. Code § 5-22A-13
The performance criteria developer must visit the site at intervals appropriate to the stage of construction to become generally familiar with the progress and quality of the work completed and to determine in general if the work is being performed in a manner indicating that work, when completed, will be in accordance with the design-build contract. On the basis of such on-site observations the performance criteria developer shall keep the agency informed of the progress of the work on the project and shall endeavor to guard the agency against defects and deficiencies in such work.
The performance criteria developer shall assist the agency in determining whether the agency shall reject work which does not conform to the design-build contract.
The performance criteria developer shall assist the agency in conducting inspections, to determine the date or dates of substantial completion and of final completion, and shall review and approve, or take other appropriate action regarding the contractor's list of items to be completed or corrected, and shall forward the list to the agency for final disposition. The performance criteria developer shall issue to the agency a final certification in writing with respect to final acceptance of the project.
W. Va. Code § 5-22A-13