Proposed rule · 2026-03220

Clean Water Act Hazardous Substance Facility Response Plans; Amendment Reconsideration

The U.S. Environmental Protection Agency (EPA or Agency) is publishing an advance notice of proposed rulemaking to seek feedback on reconsidering Clean Water Act Hazardous Substance Facility Response Plans regulations that were published in the Federal Register on March 28, 2024. This advanced notice of proposed rulemaking seeks feedback on potential amendments to address implementation challenges and clarify requirements from the 2024 final rule. Any resulting proposed amendments will align with Administration priorities and would prioritize opportunities to address regulatory burden while maintaining planning requirements to protect human health and the environment when responding to Clean Water Act Hazardous Substance worst case discharges.