NIGP 55951: Insulation, Train

NIGP 55951 Insulation, Train is an Item code covering thermal and moisture-management materials and installation work for rail vehicles, though recent state and local procurement under this code reflects specialized transit-asset maintenance rather than new insulation supply. The Charlotte Area Transit System (CATS) posted a solicitation in August 2026 for CATS IV Streetcar Truck Overhauls due October 20, 2026, which involves comprehensive mechanical overhaul of Siemens truck, hydraulic, and braking systems to original-equipment-manufacturer specifications and intervals rather than insulation work per se. This discrepancy suggests the code may capture work performed during major rail-vehicle refurbishment where thermal insulation renewal or replacement is incidental to or bundled with truck and drivetrain rehabilitation. The issuing body is a transit authority; school districts, municipalities, and state transportation departments also procure rail maintenance, though the recent opportunity block presents only the single CATS example.

Activity under this code concentrates in North Carolina based on the current solicitation record. CATS, the regional transit authority serving the Charlotte area, is the only recent buyer identified. The October 20, 2026 response deadline for the streetcar truck overhaul RFP signals near-term demand; bidders should note that CATS's Reliability, Condition & Maintenance department will remove and prepare equipment and the Rail Inventory department will coordinate transport to the selected vendor, meaning the contractor's scope is limited to performing the overhaul work at their facility to OEM standards rather than field service. No contract value or term is specified in the source.