40 CFR 63.8390 - What parts of my plant does this subpart cover?
(b) For the purposes of this subpart, the affected sources are described in paragraphs (b)(1) and (2) of this section.
(1) All tunnel kilns at a BSCP manufacturing facility are an affected source. For the remainder of this subpart, a tunnel kiln with a design capacity equal to or greater than 9.07 megagrams per hour (Mg/hr) (10 tons per hour (tph)) of fired product will be called a large tunnel kiln, and a tunnel kiln with a design capacity less than 9.07 Mg/hr (10 tph) of fired product will be called a small tunnel kiln.
(2) Raw material processing and handling.
(4) Sources covered by subparts KKKKK and SSSSS of this part.