This is a pre-solicitation synopsis for a firm-fixed-price contract to design, manufacture, assemble, deliver, install, and test beamline shielded enclosures at Brookhaven National Laboratory (BNL) on Long Island, New York. The requirement is for full and open competition, with one award expected, under NAICS code 332999 (750-employee size standard). BSA intends to issue the solicitation by September 2026 and anticipates award around December 2026. The selected contractor must deliver, install, and test the enclosures at BNL, with delivery due 50 weeks after contract award. Interested parties must be registered in SAM under the NAICS code before submitting a quote once the solicitation is posted on SAM.gov.