EPA amended the interim status regulations for hazardous waste surface impoundments, land treatment units, and landfills in Title 40 of the Code of Federal Regulations (40 CFR) Part 265, Subparts K, M, and N, respectively, issued under authority of the Resource Conservation and Recovery Act (RCRA). These modifications provide consistency between certain interim status requirements for surface impoundments, land treatment units, landfills, and those in the permitting rules of 40 CFR Part 264.
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