EPA is taking direct final action to codify a longstanding generator-specific delisting determination for brine purification muds (K071) generated by Olin Corporation (Olin) at its facility in Charleston, Tennessee. This rule will amend the Code of Federal Regulations to reflect the delisting, which was granted by EPA in December 1981 and by the Tennessee Department of Environment and Conservation in June 1983 after full notice and comment. The rule will not impose any new requirements on Olin or any other member of the regulated community.