[Code of Federal Regulations] [Title 40, Volume 24] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR264.178] [Page 313-314] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 264_STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES--Table of Contents Subpart I_Use and Management of Containers Sec. 264.178 Closure. At closure, all hazardous waste and hazardous waste residues must be removed from the containment system. Remaining containers, liners, bases, and soil containing or contaminated with hazardous waste or hazardous waste residues must be decontaminated or removed. [Comment: At closure, as throughout the operating period, unless the owner or operator can demonstrate in accordance with Sec. 261.3(d) of this chapter that the solid waste removed from the containment system is not a hazardous waste, the owner or operator becomes a generator of hazardous waste and must manage it in accordance with all applicable [[Page 314]] requirements of parts 262 through 266 of this chapter].