...
The requirements of this subpart apply to owners and operators of facilities that use tank systems for storing or treating hazardous waste except as otherwise provided in paragraphs (a) , 264.190(b) , and (c) of this section or in �264.1 of this part.
(a) Tank systems that are used to store or treat hazardous waste which contains no free liquids and are situated inside a building with an impermeable floor are exempted from the requirements in �264.193 . To demonstrate the absence or presence of free liquids in the stored/treated waste, the following test must be used: Method 9095B (Paint Filter Liquids Test) as described in �Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,� EPA Publication SW-846, as incorporated by reference in �260.11 of this chapter.
(b) Tank systems, including sumps, as defined in �260.10 , that serve as part of a secondary containment system to collect or contain releases of hazardous wastes are exempted from the requirements in �264.193(a) .
(c) Tanks, sumps, and other such collection devices or systems used in conjunction with drip pads, as defined in �260.10 of this chapter and regulated under 40 CFR part 264 subpart W , must meet the requirements of this subpart.
[70 FR 34581 June 14, 2005]