The Environmental Protection Agency (EPA or Agency) today is granting a petition submitted by Conversion Systems, Inc. (``CSI'') to exclude from hazardous waste control (or ``delist'') certain solid wastes. The wastes being delisted consist of electric arc furnace dust (``EAFD'') that has been treated by a specific chemical stabilization process. This action responds to CSI's petition to delist these treated wastes on a ``generator-specific'' basis from the hazardous waste lists. After careful analysis, the Agency has concluded that the petitioned waste is not hazardous waste when disposed of in Subtitle D landfills. This exclusion applies to chemically stabilized EAFD generated at CSI's Sterling, Illinois facility as well as to similar wastes that CSI may generate at future facilities. Accordingly, this final rule excludes the petitioned waste from the requirements of hazardous waste regulations under the Resource Conservation and Recovery Act (RCRA) when disposed of in Subtitle D landfills, but imposes testing conditions to ensure that the future-generated waste remains qualified for delisting.