EPA Advances Supplemental Proposed Rule for 'Waters of the U.S.' Definition

The U.S. Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers have announced a supplemental proposed rule seeking additional public input on defining 'waters of the United States' (WOTUS). This action follows the Supreme Court's 2023 decision in Sackett v. EPA, which narrowed federal jurisdiction under the Clean Water Act. The proposal aims to provide clearer regulatory boundaries for landowners and will have a 30-day public comment period once published in the Federal Register.

Context

The EPA and the U.S. Army Corps of Engineers are revisiting the WOTUS definition in response to the Supreme Court's ruling in Sackett v. EPA, which limited federal authority under the Clean Water Act. Previous definitions have faced legal challenges and shifts in policy, creating uncertainty for stakeholders. The proposed rule seeks to establish a more stable regulatory framework.

Why it matters

The definition of 'waters of the United States' is crucial for determining federal jurisdiction over water bodies and wetlands. This impacts environmental protection efforts, land use, and property rights. Clarity in this definition can help landowners understand their responsibilities and rights regarding water management.

Implications

The finalization of the WOTUS definition will affect federal regulatory power over water bodies, influencing environmental protection and land development practices. Landowners may face new requirements or gain clarity on existing regulations. The outcome could set precedents for future legal interpretations of the Clean Water Act.

What to watch

The supplemental proposed rule will enter a 30-day public comment period after its publication in the Federal Register. Stakeholder feedback will be critical in shaping the final definition. Observers should monitor how various interest groups, including environmental advocates and property owners, respond to the proposal.