NASA's Goddard Space Flight Center (GSFC) is seeking capability statements from interested parties for the acquisition of the Laser Interferometer Space Antenna (LISA) Flight Frequency Reference System (FRS). The procurement involves the design, fabrication, testing, and delivery of various models of the FRS, including one engineering model, one qualification model, three flight models, and spare components, all aimed at supporting the LISA mission to detect gravitational waves through precise laser interferometry. This mission, in collaboration with the European Space Agency, is crucial for advancing our understanding of cosmic events, such as black hole mergers. Interested firms, particularly small businesses and minority institutions, must submit their capability statements by September 9, 2024, and any inquiries by August 28, 2024, to the designated contacts, Christopher W. King and Terence Doiron, via email.