1. All elevator repair and maintenance work shall be performed or supervised by a Mechanic or Technician who is certified and licensed by the Georgia Office of Insurance and Safety Fire Commissioner. 2. Contractor shall provide the County with monthly maintenance services at the monthly rate identified in Section H. Bidder’s Response – Site Specific, and Elevator Repair Services on an ‘as-needed’ basis at the rates identified in Section I. Bidder’s Response - General. County will not pay separate fees for trip charges, fuel surcharges, etc. All fees are to be incorporated and included in the listed rates. 3. Contractor shall provide all labor, tools, equipment, and material necessary for the completion of assigned tasks. a. Materials required for project completion must be approved by the supervising County Employee prior to purchase and installation. b. Purchased materials shall be new and unused and will be billed to the County at the cost-plus percentage rate identified in Section H. Bidder’s Response - General, Item 4. Contractor will be required to submit individual itemized invoices in original form showing labor hours, materials, location, work performed and have original signature of County personnel showing work has been performed and accepted as being complete and correct. Contractor shall provide supporting proof of product cost at time of invoicing for any product(s) with a single unit cost exceeding $50.00/each. Those items shall be itemized on the submitted invoice. Invoices received with any of these items missing will be returned to vendor for proper correction before being considered as a proper invoice.