On March 5, 2025, EPA announced the deletion of one site and partial deletion of three sites from the Superfund National Priorities List (NPL). The NPL, created under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) of 1980, as amended, is an appendix of the National Oil and Hazardous Substances Pollution Contingency Plan (NCP). The EPA and the States, through their designated State agencies, have determined that all appropriate response actions under CERCLA have been completed. However, this deletion does not preclude future actions under Superfund. The document became effective March 5, 2025. Read more on the rule in the Federal Register and the revised Superfund National Priorities List.