AP 42 Section 11.19.2 Crushed Stone Processing and Pulverized Mineral Processing - Response to Comments
The information in this document has been funded by the National Stone, Sand and Gravel Association (NSSGA) for the U.S. Environmental Protection Agency (EPA). It has been reviewed by the EPA Office of Air Quality Planning and Standards and has been approved for publication.
Response to Comments, February 23, 2004 draft (PDF) (21 pp, 112 K)