UNSPSC 32151500: Control indicating and signaling devices

UNSPSC 32151500 Control indicating and signaling devices, a Class code, covers SCADA system modernization, PLC replacement, variable frequency drive procurement, and control panel design and manufacturing for water treatment, lift station, and industrial infrastructure operations. State and local governments under this code are buying supervisory control systems, programmable logic controllers, operator interface terminals, field instrumentation, and associated integration services—not off-the-shelf signaling components alone. The issuing bodies span water authorities (municipal and regional), transportation authorities, college districts, fire protection districts, and city water departments. Water treatment plant SCADA upgrades dominate recent activity, with vendors required to demonstrate multi-year experience on comparable integration projects, often specifying particular equipment platforms (Schneider Electric, Allen-Bradley, AVEVA) and documented past performance on similar facilities.

Activity is concentrated in California, Florida, and Georgia. The City of Atlanta Department of Watershed Management posted two substantial SCADA modernization RFPs for Hemphill and Chattahoochee Water Treatment Plants (pre-advertisement notices issued May 8, 2026, with pre-solicitation conferences to follow, both requiring five-plus years of comparable end-to-end integration experience and three prior references from water or wastewater treatment SCADA upgrades). The Eastern Municipal Water District in Riverside County issued RFB #3921 on March 26, 2026, seeking three 500-horsepower variable frequency drives for the Palomar Booster facility, with mandatory job walk April 7, 2026, and board approval anticipated June 3, 2026. The Tohopekaliga Water Authority in Osceola County, Florida solicited a single lift station control panel (IFB 26-026, due May 21, 2026) restricted to three approved manufacturers. Supporting opportunities include Valencia College District's college-wide classroom technology services RFP (issued April 6, 2026, covering approximately 900 rooms across nine campuses with $1.6 million in historical annual spending), the City of Santa Fe's PLC replacement and SCADA modification project for Buckman Direct Diversion (RFP FY26-036, with best-value evaluation weighting 35% on scope and expertise, 30% on cost, 25% on interview), and the Jacksonville Transportation Authority's Project Management Information System procurement (RFP P-24-033, with a 27% DBE participation goal). The class shows steady municipal and regional water infrastructure focus with recurring demand for integration expertise, operator training, testing, and as-built documentation.