Organization: Iowa Department of Natural Resources
Website: http://www.iowadnr.com/air/
Notes / Source Documents: Iowa follows Federal EPA emission regulations. The complete regulatory documents are listed directly below. The emission regulation tables links are listed under emissions regulations. Please note: The new EPA gas engine regulations will be going in to effect in June 2008.

Complete EPA Spark Ignition(Gas) Engine Rules: http://www.epa.gov/EPA-AIR/2006/June/Day-12/a4919.pdf

Complete EPA Compression Ignition(Diesel) Engine Rules: http://www.epa.gov/ttn/atw/nsps/cinsps/fr11jy06.pdf

Sean Fitzsimmons
Phone: (515) 281-8923
Email: sean.fitzsimmons@dnr.state.ia.us

Iowa DNR Permitting Hotline -
Phone: 1-877-247-4692