The Environmental Protection Agency (``EPA'') is announcing a policy relating to the National Oil and Hazardous Substances Contingency Plan (``NCP''), 40 CFR part 300, which was promulgated pursuant to section 105 of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (``CERCLA'') (amended by the Superfund Amendments and Reauthorization Act of 1986 (``SARA'')) and Executive Order 12580 (52 FR 2023, January 29, 1987). CERCLA requires that the NCP include a list of national priorities among the known releases or threatened releases of hazardous substances, pollutants or contaminants throughout the United States, and that the list be revised at least annually. The National Priorities List (``NPL''), initially promulgated as Appendix B of the NCP on September 8, 1983 (48 FR 40658), constitutes this list. This document describes a policy for deleting sites from the NPL and deferring them to the Resource Conservation and Recovery Act (``RCRA''), as amended by the Hazardous and Solid Waste Amendments of 1984 (``HSWA'') corrective action program, if they meet the eligibility criteria for deletion set out in the NCP. EPA requested public comment on this policy on December 21, 1988 (53 FR 51421). The policy applies to sites on the NPL that are RCRA-regulated facilities engaged in treatment, storage or disposal of hazardous waste (``TSDs'' under the RCRA program).