Opinion ID: 4020089
Heading Depth: 3
Heading Rank: 2

Heading: The Record-Keeping Requirement

Text: Whether the EPA considers a combustion unit to be a boiler (and thus subject to section 7412) or a CISWI (and thus subject to section 7429) turns entirely on whether the unit combusts “solid waste.” See id. at 15,709. The term “solid waste” is defined in RCRA, 42 U.S.C. §§ 6901 et seq., and clarified by EPA regulation, see Identification of NonHazardous Secondary Materials that Are Solid Waste (NHSM Rule), 76 Fed. Reg. 15,456, 15,457 (Mar. 21, 2011). See also 2011 CISWI Rule, 76 Fed. Reg. at 15,709. If the unit combusts solid waste, it is a CISWI. Id. The source owner or operator initially decides whether the material its combustion unit burns meets the definition of 28 solid waste. See id. at 15,740. For this reason, the CISWI rule requires that the owner or operator of a combustion unit that burns materials “not clearly listed as traditional fuels” keep records explaining how the materials meet the regulatory definition of “non-solid waste.” Id.; see also 40 C.F.R. § 60.2175(v). Failure to do so means, for the purposes of the EPA, that “the operating unit is a CISWI unit.” 40 C.F.R. § 60.2265; see also 2013 CISWI Rule, 78 Fed. Reg. at 9,188.