Supreme Court Narrows EPA Authority Over Wetlands in Sackett v. EPA
In a significant ruling with wide-ranging implications, the U.S. Supreme Court revised the standard for federal regulation of wetlands under the Clean Water Act (CWA). The decision in *Sackett v. EPA*, delivered on May 25, 2023, limits the Environmental Protection Agency's (EPA) authority, establishing a stricter test for determining which wetlands fall under federal jurisdiction.
The 'Continuous Surface Connection' Test: Redefining 'WOTUS'
Central to the case was the definition of 'waters of the United States' (WOTUS), which dictates the reach of the CWA. Previously, agencies often used the 'significant nexus' test, considering ecological connections between wetlands and larger water bodies. The *Sackett* ruling replaced this with a more stringent requirement: a wetland must have a 'continuous surface connection' to a traditional navigable water (like a river or lake) to be considered WOTUS, making it difficult to distinguish the wetland from that water body.
"This decision provides landowners with clearer rules, limiting federal jurisdiction to wetlands directly adjoining navigable waters, reducing uncertainty," noted a legal analyst specializing in property law.
Implications for Landowners and Environmental Regulation

The ruling potentially removes federal permitting requirements for activities affecting wetlands that lack the specified continuous surface connection. Supporters argue this reduces regulatory burdens, respects property rights, and may streamline development. However, it significantly narrows the scope of wetlands protected under the CWA compared to previous interpretations.
Environmental Concerns and Criticisms

Environmental organizations and dissenting justices expressed concern that the stricter test excludes many ecologically important wetlands from federal protection. Critics argue this could impair water quality, harm wildlife habitats, and undermine flood control, as wetlands without a continuous surface connection can still play vital roles in watershed health.
"Removing federal protection for vast areas of wetlands based on this narrow test risks long-term damage to water resources and ecosystems vital for downstream communities," stated an environmental policy expert.
Navigating the New Regulatory Landscape

The *Sackett* decision compels the EPA and Army Corps of Engineers to revise WOTUS definitions and regulatory practices. This shift may lead to increased reliance on state and local regulations for wetlands protection, potentially creating a more complex regulatory patchwork across the country. The long-term balance between federal authority, state roles, property rights, and environmental protection continues to evolve.
Understanding the Evolving Framework
The Supreme Court's ruling marks a pivotal moment in environmental law, emphasizing a stricter interpretation of federal power under the Clean Water Act. Understanding this new framework is crucial for landowners, developers, environmental stewards, and policymakers as they navigate the responsibilities and opportunities presented by the redefined scope of federal wetland regulation.