40 CFR § 260.40 - Additional regulation of certain hazardous waste recycling activities on a case-by-case basis.
(a) The Regional Administrator may decide on a case-by-case basis that persons accumulating or storing the recyclable materials described in § 261.6(a)(2)(iii) of this chapter should be regulated under § 261.6 (b) and (c) of this chapter. The basis for this decision is that the materials are being accumulated or stored in a manner that does not protect human health and the environment because the materials or their toxic constituents have not been adequately contained, or because the materials being accumulated or stored together are incompatible. In making this decision, the Regional Administrator will consider the following factors:
(1) The types of materials accumulated or stored and the amounts accumulated or stored;
(2) The method of accumulation or storage;
(3) The length of time the materials have been accumulated or stored before being reclaimed;
(5) Other relevant factors.