Environmental Protection Agency (EPA) is granting a petition submitted by Tokusen USA, Inc. (called Tokusen hereinafter) to exclude (or delist) a wastewater treatment plant (WWTP) sludge filter cake (called sludge hereinafter) generated by Tokusen in Conway, AR from the list of hazardous wastes. The final rule responds to the petition submitted by Tokusen, to delist the WWTP sludge. After careful analysis and use of the Delisting Risk Assessment Software (DRAS), EPA has concluded the petition waste is not hazardous waste. This exclusion applies to 2,000 cubic yards per year of the WWTP sludge with Hazardous Waste Number: F006. Accordingly, this final rule excludes the petitioned waste from the requirements of hazardous waste regulations under the Resource Conservation and Recovery Act (RCRA) when it is disposed in a Subtitle D landfill.