UNSPSC 23181509: Sorting machinery

UNSPSC 23181509 Sorting machinery, a Commodity code, spans equipment and labor for screening, sorting, and material segregation work at waste and environmental remediation sites. State and local environmental agencies and waste management authorities use this code to procure on-site screening and sorting services, typically for spoils separation, landfill construction support, and bulk material categorization. The work involves both equipment operation and labor to separate commingled materials—such as stone, soil, and clay spoils—into classified size and type categories, with materials then stockpiled or relocated on-site. Issuing bodies include state environmental services departments, county waste disposal authorities, and municipal environmental agencies.

The Maryland Environmental Service posted a competitive sealed bid on May 6, 2026 (due June 8, 2026) to screen and sort approximately 130,000 cubic yards of blasted rock spoils at the Harford Waste Disposal Center in Harford County, Maryland, into five material grades (rock >18 inches, 12–18 inch Class II Rip Rap, 6–12 inch Class I Rip Rap, 4–6 inch gabion stone, and 1.5–4 inch stone), with work commencing July 1, 2026 and completion by December 31, 2026. The procurement is designated as both a Small Business Reserve and carries a 15 percent Minority Business Enterprise subcontract participation goal. A pre-bid conference was held May 12, 2026, with site visits available through May 22, 2026, and bidders were required to submit three separate bid items based on estimated volumes (130,000, 65,000, and 40,000 cubic yards respectively). Bid bonds, performance and payment bonds, and prevailing wage documentation were required; electronic bids were submitted through the MES Procurement Portal.