The U.S. Department of Commerce/NOAA intends to award a sole source, firm-fixed price purchase order to REES Scientific for service and support of their proprietary Centron environmental monitoring system, including calibration, validation, and on-site hardware/software support. This is not a request for competitive proposals, but interested parties may submit documentation for consideration before the SAM posting deadline. The procurement is needed to maintain regulatory compliance with the FDA and other bodies, as annual calibration is required. The anticipated award date is August 2026. No budget amount or performance location is specified.