ISART^™ 2024: In Pursuit of Consensus on Clutter seeks consensus on how to address the pressing challenge of developing, agreeing on, and applying radio frequency propagation models that take into account the impact of foliage and buildings—clutter—for planning of both spectrum policy and spectrum-dependent systems of all kinds. The development of such models has historically been fraught with competing methodologies, assumptions, and toolsets. Yet today’s environment of ubiquitous spectrum sharing, increasing system diversity and complexity, and rapidly expanding exploitation of mid-band frequencies means that the demand for more modeling fidelity and greater modeling accuracy is both urgent and compelling. ISART 2024 will focus on how the broader community of researchers and system owners can collectively marshal and invest its finite resources to develop, validate, and apply new, more broadly used clutter models. These tools are needed to ensure that the ambitious goals set forth in both the U.S. National Spectrum Strategy (NSS) and the 2023 World Radio Conference (WRC-23) can be achieved.