The Environmental Protection Agency (EPA) is withdrawing a final rule published on September 12, 2000 which modified the regulations under the Resource, Conservation and Recovery Act (RCRA) to enable the implementation of the International Business Machines Corporation (IBM) Copper Metallization project that was developed under EPA's Project eXcellence in Leadership (Project XL) program. Project XL was a national pilot program that allowed state and local governments, businesses and federal facilities to work with EPA to develop more cost-effective ways of achieving environmental and public health protection. In exchange, EPA provided regulatory, policy or procedural flexibilities to conduct the pilot experiments.