NIGP 18084: Silicates

NIGP 18084 Silicates, an Item code, encompasses the supply of aggregate materials—rock, base material, sand, rip rap, and related silicate products—that state and local governments procure for infrastructure and construction work. Recent activity shows county governments issuing Invitations for Bids (IFB) to establish standing supplier relationships for aggregate delivery to multiple jurisdictional locations on varying schedules, with materials sourced to specified standards and delivered under negotiated service-level commitments. The scope includes both contractor-delivered and county-pickup options, with suppliers required to maintain commercial insurance and provide responsive customer service across standard and emergency request windows.

Sarasota County, Florida, issued IFB 262819AMS on January 26, 2026, with a response deadline of February 26, 2026, to procure rock, aggregates, and other materials across three contract groups with up to three awards per group and an anticipated initial term of one year. The County requires bidders to hold two references for Groups 1 and 2 demonstrating seven years of prior experience delivering aggregate materials, enforce a 60-mile sourcing radius for county-pickup materials, and comply with 2025–26 Florida Department of Transportation Standard Specifications. No local-preference or disadvantaged-enterprise set-asides apply due to grant funding constraints. Suppliers must maintain Business Automobile Liability coverage of not less than $1,000,000 combined single limit and Commercial General Liability of $1,000,000 per occurrence with $2,000,000 aggregate, deliver with state-certified scale receipts, and respond to standard requests within 48 hours with delivery within ten business days and to emergency requests within 24 hours.