The California Department of Toxic Substances Control (DTSC), pursuant to authority granted under California Code of Regulations, Title 22, Division 4.5, Chapter 20, is approving an addendum to a certified Environmental Impact Report for the renewal of a Hazardous Waste Facility Permit (Permit) for the Lawrence Berkeley National Laboratory (LBNL) Hazardous Waste Facility for ten additional years. DTSC received a Permit renewal application for the Hazardous Waste Handling Facility (HWHF) as authorized by the California Health and Safety Code, Chapter 6.5. The HWHF operates under a Hazardous Waste Facility Permit for storing, consolidating, lab-packing, and treating hazardous and mixed wastes that are generated by various LBNL research activities, including those generated by particle accelerator operations, metal-finishing processes, and various other facility operations. Management of hazardous and the hazardous component(s) of mixed waste at the HWHF is conducted pursuant to the Permit, and management of radioactive waste at the HWHF is conducted pursuant to U.S. Department of Energy (DOE) requirements. The Permit does not pertain to or authorize radioactive waste storage or treatment.