CCR management unit
CCR management unit means any area of land on which any noncontainerized accumulation of CCR is received, is placed, or is otherwise managed, that is not a regulated CCR unit. This includes inactive CCR landfills and CCR units that closed prior to October 19, 2015, but does not include roadbed and associated embankments in which CCR is used unless the facility or a permitting authority determines that the roadbed is causing or contributing to a statistically significant level above the groundwater protection standard established under 257.95.
Source
40 CFR § 257.53
Scoping language
The following definitions apply to this subpart. Terms not defined in this section have the meaning given by RCRA.