The EPA (also, "the Agency" or "we" in this preamble) is granting a petition to exclude (or "delist") wastewater treatment plant sludge from conversion coating on aluminum generated by the Ford Motor Company Dearborn Truck Assembly Plant (DTP) in Dearborn, Michigan from the list of hazardous wastes. Today's action conditionally excludes the petitioned waste from the requirements of hazardous waste regulations under the Resource Conservation and Recovery Act (RCRA) when disposed of in a lined subtitle D landfill which is permitted, licensed, or registered by a State to manage industrial solid waste. The exclusion was proposed on March 7, 2002 as part of an expedited process to evaluate this waste under a pilot project developed with the Michigan Department of Environmental Quality (MDEQ). The rule also imposes testing conditions for waste generated in the future to ensure that this waste continues to qualify for delisting.