1. Seller shall furnish all necessary labor, supervision, tools, equipment, parts, supplies, transportation, and all effort necessary to perform the required maintenance, repair and callback service on all elevators listed 24 hours a day 7 days a week. 2. All service calls, regardless of time of day or day of the week, are at no additional cost to the City and include the cost of parts to perform repairs. Exceptions to this are service calls caused by vandalism, or damage caused by acts of God. Trip charges are allowed on billable service only. 3. Due to the nature of this City of Tulsa facility operating on a seven day/twenty-four-hour schedule, the Seller shall be available to the City of Tulsa for these services 365 days per year, 24 hours per day. 4. Seller’s mechanic must check in and out with the City of Tulsa Representative on each visit to the One Technology Center and or OTC Parking Garage. Removal of elevators from service shall be coordinated with and approved by Building Operations in writing. 5. Additionally, requested calls for entrapments shall be included in the full maintenance cost. 6. On-site mechanics shall perform preventative maintenance tasks a minimum of 3 hours per month for each traction unit and a minimum of 1 hour per month for each hydraulic unit. 7. The Seller agrees to accept full responsibility for the elevators as covered under these Specifications and is to leave them in first class condition on the Agreement termination date.