Portland Cement Manufacturing Industry NESHAP
2016-5-9 · Greenfield kiln, in-line kiln/raw mill, or raw material dryer means a kiln, in-line kiln/raw mill, or raw material dryer for which construction is commenced at a plant site (where no kilns and no in-line kiln/raw mills were in operation at any time prior to March 24, 1998) after March 24, 1998. Hazardous waste is defined in §261.3 of this chapter.