Specifications include, but are not limited to: The contractor shall be able to provide personnel who have been fully trained in all phases of HVAC Air vents and duct systems operations, maintenance, adjustment and repair. Contractor’s personnel should also have familiarity with all types of components including controllers, electrical components, general preventative maintenance, repairs, and new installations of a variety of brands and models. The contractor and staff shall have expertise and experience in HVAC management to include the following but not limited to: Assessments and approvals needed for the Office of the Prosecutors District Offices sites: 1. Complete an assessment on the condition of the all HVAC units, air vents, and ducts consistent with applicable industry code and compliance standards. 2. Upgrade and install HVAC units and the repair/replacement/cleaning of air vents and ducts in accordance with applicable industry code and compliance standards, upon NNDOJ/OAG approval. 3. Provide a scope of work and quote needed for all repairs 4. The constructor shall ensure a work order is provided and approved by NNDOJ/OAG before services are started. 5. All waste, parts and supplies should be properly disposed in accordance with NNEPA regulations. Work: 6. Provide routine preventative HVAC maintenance services including air vents and duct services. 7. Major and minor repairs on the HVAC air vents and duct systems 8. Provide services when needed. 9. Provide new materials used on all HVAC, air vents and duct systems and shall be free of defects and pass inspection. 10. Provide labor, supplies, parts and equipment for the HVAC, air vents and duct services. 11. Provide a schedule and detail of each location within the district of what needs repairs and upgrades. 12. Provide a timeline of when work is complete longer than 24 hours, dependent upon the supplies needed for work. 13. Provide start up and inspections before start of services and after services have been completed. 14. Provide a sticker for HVAC system to verify service date 15. Routine maintenance and repairs shall be done in accordance with federal and Navajo Nation regulations and codes. 16. Services to be performed and completed in accordance with industry acceptable standards. 17. Ensure the work order is singed and returned to the NNDOJ/OAG 18. Warranty Service: Extended warranty parts and labor (define maximum number of years available). 19. Dispose of all hazardous materials and waste when repairing or changing any HVAC units in accordance with Navajo EPA regulations. 20. Must comply with all Federal and Navajo Nation Regulations.