Real-world, at-scale experimentation will be critical for evaluation and eventual adoption of advanced spectrum management techniques developed by the SII center. The project plans to leverage a number of existing assets including the PAWR COSMOS platform in NYC, the mmWave and THz measurement capabilities at NYU, the passive astronomy experiment setup at Arizona, and the measurement infrastructure at Wisconsin. The team is currently in the process of soliciting input on broader spectrum-related experimental requirements for the community as a whole, and will consider how to best integrate/federate available testbed resources with new ones to be added.