The Air Pollution Control Board amended 326 Ind. Admin. Code 2.2.1, 2.3.2, and 2.7.1, concerning permitting of ethanol production facilities. Changes exclude ethanol production facilities from those defined under the term "chemical process plants" in the major source category. The rule took effect August 21, 2011. http://www.in.gov/legislative/iac/20110817-IR-326110099FRA.xml.pdf.