1.  Economic Impact Analysis of the Clay Ceramics Manufacturing NESHAP, August 2015.
2.  Regulatory Impact Analysis, Final Brick and Structural Clay Products NESHAP, July 2015.
3. Emissions Standards for Area Source Industrial, Commercial and Institutional Boilers, Regulatory Impact Analysis, April 2010.
 http://www.epa.gov/airquality/combustion/docs/boilerria20100429.pdf
4.  Emissions Standards for Major Source Industrial, Commercial and Institutional Boilers and Process Heaters, Regulatory Impact Analysis, April 2010.
http://www.epa.gov/airquality/combustion/docs/boilerria20100429.pdf
5.  Emissions Standards for Commercial/Industrial Solid Waste Incinerators, Regulatory Impact Analysis, April 2010.
http://www.epa.gov/airquality/combustion/docs/ciswiria20100429.pdf
6.  EPA, Clean Energy-Environment Guide to Action, Policies, Best Practices and Action Steps for States, April 2006.
http://www.epa.gov/slclimat/documents/pdf/guide_action_full.pdf