How is the solid waste definition addressed in this proposed rule?
EPA is proposing to define the non-hazardous secondary materials that are solid waste in a parallel notice under RCRA and the RCRA proposal also identifies an “alternative approach” for consideration and comment. The concurrently proposed RCRA solid waste definition is integral in defining the CISWI source category. As stated above, the emission limits presented in Tables 1 and 2 of this preamble are based on subcategories established considering sources that are CISWI units under the “proposed approach” for defining when non-hazardous secondary materials are solid waste, as discussed in a parallel proposal under RCRA. As stated above, the “alternative approach” identified for consideration and comment in the RCRA notice would result in a different population of units being covered by the standards for two of the CISWI subcategories. We calculated MACT floors using emission rates for units that would be CISWI units under the “alternative approach” (i.e., for units in the energy recover
