On behalf of the 500 members of the National Stone, Sand & Gravel Association (NSSGA), I write to express our gratitude for the much-needed oversight hearing titled Waters of the United States (WOTUS) Implementation Post-Sackett Decision: Experiences and Perspectives on September 11, 2024. Your attention to this matter is crucial and greatly appreciated. NSSGA represents the aggregates and industrial sand industry, and the companies that manufacture equipment and provide services. Our industry, with 9,000 facilities and well over 100,000 employees in high-paying jobs, plays a vital role in sustaining our lifestyle and constructing the nation’s infrastructure and communities. The 2.5 billion tons of aggregates we produce annually are fundamental components required for building communities, roads, airports, transit, rail, ports, clean water and energy networks. Aggregates are a local product because rocks are heavy, and excess transportation adds to the cost of the material. If operations are not allowed to expand or open near where they are needed, the materials end up costing more. The stone, sand and gravel industry urgently needs clarity and certainty regarding Clean Water Act (CWA) permitting. NSSGA’s members frequently pull CWA permits when developing new quarries or determining if, when, or how to expand their existing quarry, and the lack of clear guidelines is a significant challenge. In May 2023, the Supreme Court issued a clear ruling to limit federal jurisdiction under the CWA in Sackett v. EPA.