June 18, 2026 - Published AMD 0001 Minor Changes SEE ATTACHMENTS FOR FULL PROJECT DETAILS Project: Construction Services/Steam Tunnel Ventilation System Replacement, NIST, Boulder, CO This acquisition is a 100% Small Business Set-Aside. The NAICS for this acquisition is 236220; the Small Business Size Standard is $45.0 Million. The purpose of this project is to replace the existing tunnel ventilation system with steam heating coils with (2) natural gas indirect fired make up air units (MAU’s). This construction effort will procure and deliver a complete, operational tunnel ventilation system, including removal of existing equipment, installation MAU’s, and all associated systems required for safe, reliable, and continuous ventilation system. Work will be planned and phased to be performed between the months of May 1 through October 31, mitigating the chances for pipes to freeze.

AgencyCOMMERCE, DEPARTMENT OF

NAICS236220 · Commercial & Institutional Building Construction

PlaceBoulder, CO

SAM.gov· Posted Jun 18, 2026#1333ND26RNB190032

ContractTotal Small Business Set-Aside (FAR 19.5)Rolling / no deadline

Browse opportunities

Conversion Kit

Remanufacture of F16 Heat Exchanger

Steam Tunnel Ventilation Replacement

Z--Wind Cave National Park Replace Boundary Fence US Highway 385

Z--PR-CULEBRA NWR-ROAD & PARKING REHAB

WEST ZONE MT HOOD NATIONAL FOREST PARENT BPA