The Contractor shall perform preventive maintenance services of the Two (2) Carrier Chillers at the U.S. Embassy Canberra. These services shall result in all systems being serviced under this agreement being in good operational condition when activated. Contractor shall provide all materials, supervision, labor, tools and equipment to perform preventive maintenance. All personnel working in the vicinity will wear and /or use safety protection while all work is performed. Any questions or injuries will be brought to the attention of the Post Occupation Safety and Health Officer (POSHO) immediately. Material Safety Data Sheets (MSDS) shall be provided by the Contractor for all HAZMAT materials. Copies shall be provided to the COR for approval. The Contractor shall inventory, supply and replace expendable parts (e.g., filters, belts, hoses, gaskets) that have become worn down due to wear and tear. The Contractor shall maintain a supply of expendable and common parts on site so that these are readily available for normal maintenance to include: hoses, belts, oil, chemicals, coolant, filters (Air, Fuel, Oil), grease, sealant, thermostat, fuses; in addition to the appropriate tools, testing equipment, safety shoes and apparel for technicians, personal protective equipment (hands, hearing, eye protection), MSDS, cleaning material and oil spill containment kits. The contractor should inventory the supply after each visit and order replacement supplies and have them delivered on site. Maintenance materials shall be unused and are to be industry standard and intended for the task to be performed. Parts are to be OEM approved. Refrigerants are to meet the AHRI_Standard_700-2015 or most recent AHRI Standards. Refrigerants, parts and maintenance materials delivered to the post are to be new and unused. Reclaimed refrigerants are not to be delivered to posts. Reclaimed refrigerants within post compounds are to be retained and stored and may be used if not contaminated. Refrigerants shall be stored in containers clearly indicating the refrigerant type.