a. The Contractor(s) shall furnish all labor, materials, supplies, tools, and equipment necessary to perform work "as needed" and as requested by the District. The Contractor shall provide and pay for all materials, labor, tools, equipment, safety barriers, transportation, taxes, insurance, disposal fees, etc., and whatever is necessary to execute, complete and deliver the work requested to the District "Turn-Key". b. The Contractor will provide and use only "new" repair parts or materials on any District project. Factory "seconds", defects, discontinued, and/or surplus parts and supplies will not be used. c. Upon request, the Contractor may be required to reinstall or re-use existing District parts and materials. Any additional repair parts or materials required to complete project will comply with item b. above.