UNSPSC 81101800: Chemical engineering

UNSPSC 81101800 Chemical engineering is a Class code under which state and local governments buy architect-engineer and related professional services for infrastructure design, planning, and project management spanning water, wastewater, power generation, flood control, and facility systems — not chemical-production or chemical-treatment services as the abstract code name suggests. Recent solicitations show the code capturing design-phase and pre-construction consulting work where chemical or process-system expertise intersects with capital planning, permitting, and construction oversight across municipal utilities, counties, and special districts.

The County of Orange, California is the dominant issuer under this code in the recent record, posting at least eight RFQs since May 2026 to establish Qualified Vendor Lists for architect-engineer disciplines spanning flood control engineering, power generation and energy infrastructure, mechanical-electrical-plumbing design support, land surveying, project management support, cost estimating, and roadway/bikeway services — all structured as three-year task-order vehicles with time-and-materials compensation and no guaranteed minimum work volume. Secondary issuers include the City of Tallahassee (power plant chemical treatment consultation), the City of Fort Myers (design-build water wellfield expansion), Madison County Georgia (wastewater treatment plant upgrades and sewer line extension design), the Georgia Department of Transportation (general engineering consulting for highway express lanes), and Pinellas County (utilities capital improvement program engineering). The code shows concentrated activity in California, particularly Orange County and its John Wayne Airport, with secondary clusters in Florida, Georgia, and the Pacific Northwest.

Representative current opportunities include the County of Orange RFQ 0173118901JL (October 2026, due November 5) establishing a countywide architect-engineer QVL for building assessments, design, construction administration, and commissioning across 22 County departments and agencies on time-and-materials task-order basis; the County of Orange RFQ 0803026003RE for Geotechnical & Materials Testing Services (responses due May 1, 2026) pre-qualifying firms for geotechnical reporting, materials testing, and construction inspection on facilities including roadways, flood control channels, and parks; the City of Tallahassee RFP 09126RR (August 31, 2026) for power plant boiler and heat-recovery steam generator chemical treatment programs and consulting services at two generating stations; and Madison County Georgia's RFQ (June 24, 2026) for wastewater treatment plant equipment upgrades and a 1.7-mile sewer line extension design and construction management services funded through Appalachian Regional Commission grant. Qualification-heavy RFQ structures dominate; most County of Orange vehicles require three-year California business experience, valid professional engineering licenses, and minimum three to five references from comparable public-sector entities, with evaluation weighted heavily toward qualifications and experience (40 percent) and availability to perform services (25 percent), and compensation negotiated after selection with no price increases permitted during the contract term.