UNSPSC 25173707: Catalytic substrate

Various base layer items produced from ceramic or other materials used in catalytic converters for the purpose of cleaning automotive exhaust gases.

UNSPSC 25173707 Catalytic substrate is a Commodity code, and the recent solicitations tagged under it do not reflect purchases of catalytic substrates, conversion materials, or chemical catalysts. Instead, the opportunities listed—car wash services, vehicle parts inventory management, bus and fleet vehicle parts, exhaust system components, and automotive repair parts pricing agreements—span fleet maintenance, vehicle parts supply, and transportation equipment procurement. The mismatch between the code's nominal scope and the actual work being solicited suggests the code sees little relevant recent activity in state and local procurement.

The issuing bodies across these opportunities include county governments (Brevard County, Orange County, Rockland County), school districts (Rockwood School District, School Board of Sarasota County), transit authorities (Metropolitan Transit Authority of Harris County), cities (City of Atlanta), and cooperative purchasing vehicles such as Sourcewell. Geographic activity centers on Florida, Texas, Missouri, New York, and Georgia, with cooperative procurements reaching jurisdictions nationwide. Representative recent opportunities include the Metropolitan Transit Authority of Harris County soliciting sealed bids for exhaust parts for transit buses with a due date of March 11, 2026 (IFB), and Brevard County Purchasing Services issuing a solicitation for just-in-time inventory management and parts supply services for fleet maintenance with a bid opening of February 25, 2026 (IFB). Neither opportunity involves catalytic substrates or materials chemistry; both concern finished vehicle components and logistics services.