In this action, EPA proposed to amend the definitions in Title 40 of the Code of Federal Regulations (40 CFR) Part 260, Subpart B, and the closure and post-closure care (40 CFR Parts 264 and 265, Subpart G) and financial responsibility (40 CFR Parts 264 and 265, Subpart H) requirements applicable to owners and operators of hazardous waste treatment, storage and disposal facilities (TSDFs), and the permitting standards in 40 CFR Part 270. Many of the proposed amendments conform to a settlement agreement signed by EPA and petitioners in American Iron and Steel Institute v. EPA, and the remainder are designed to clarify the regulations and to address issues that arose as EPA implemented the Subparts G and H regulations, which cover closure and post closure requirements and financial responsibility, respectively.

• Standards Applicable to Owners and Operators of Hazardous Waste Treatment, Storage, and Disposal Facilities, Federal Register Notice (PDF)(30 pp, 4 MB, March 19, 1985, 50 FR 11068)