NIGP 55905: Air Conditioning, Heating and Ventilation (Including Defrosters and Defoggers)

NIGP 55905 Air Conditioning, Heating and Ventilation (Including Defrosters and Defoggers) is an Item code under which state and local governments procure replacement HVAC components, repairs, maintenance services, and system overhauls for facility and fleet operations. Recent solicitations reflect steady demand for fresh air filters, compressor assemblies, blower motors, and ventilator repair and replacement at transit authorities, water treatment facilities, detention centers, military installations, and county facilities. Work ranges from commodity purchases of standardized filter sizes to specialized equipment repairs and comprehensive maintenance contracts spanning multiple locations and facility types.

Transit authorities drive substantial activity under this code. The Dallas Area Rapid Transit Authority (DART) has posted multiple procurement notices since May 2026 for fresh air filters (20" × 12"), HVAC air filters (16" × 20" × 2"), condenser blower fan/motor assemblies, and compressor isolator mounts on recurring purchase-order cycles with response dates typically seven to fourteen days after posting and Net 30 payment terms. Charlotte Area Transit System (CATS) solicited proposals for CATS IV Streetcar truck overhauls—including truck, hydraulic, and braking system work on Siemens trucks—with proposals due October 20, 2026. Dallas County sought rebuilt compressor assemblies for super light rail vehicle fleets with a July 21, 2026 deadline. Beyond transit, the City of Tampa Water Production Department issued an IFB for a Strobic Air exhaust system and double wall plenum replacement at the David L. Tippin Water Treatment Facility Lab with estimated contract value of $200,000, sealed bids due September 14, 2026, restricted to Small Local Business Enterprises with a 5% bid discount. The City of Augusta, Georgia Procurement Department issued ITB 26-177 for repair of two energy recovery ventilators at the Charles B. Webster Detention Center with sealed bids due October 9, 2026, the Local Small Business Program Preference waived due to insufficient certified firms. The Oregon Military Department requested quotations for a breathing air purifier system replacement in Building 6476 at Camp Withycombe under RFQ 260047C001 with quotations due July 21, 2026. Monroe County Board of County Commissioners in Florida issued RFP 633 for countywide chiller maintenance and service at multiple locations with proposals due June 17, 2026, seeking a licensed and certified HVAC contractor with Type III or Universal Certification and requiring three years of financial statements, customer and credit references, and General Liability Insurance ($1,000,000 Combined Single Limit). Activity concentrates in Texas (Dallas), Georgia (Augusta), Florida (Tampa, Monroe County), North Carolina (Charlotte), and Oregon, with recent opportunities spanning June through October 2026. DART's high volume of commodity procurements on short cycles favors vendors with capacity for rapid fulfillment and willingness to absorb FOB Destination freight costs and strict delivery-schedule accountability.