This is a Request for Quotation for annual monthly preventive maintenance services for a Building Automation System, with a one-year base period and four one-year option periods for a total potential performance period of five years. The acquisition is unrestricted and open to all responsible sources. The evaluation will be based on technical approach, price, and past performance to determine best value. Questions from offerors are due by April 15, 2026, at 3:00 PM Central Time. The Service Contract Labor Standards apply, and the place of performance is known to the government.