Indiana: Air
The Air Pollution Control Board proposed amending 236 Ind. Admin. Code 1-3-4, altering requirements related to the NAAQS for nitrogen dioxide and sulfur dioxide. The comment period ends September 17, 2010, and there will be a public hearing on November 3. http://www.in.gov/legislative/iac/20100818-IR-326100495FDA.xml.html.