Organization: Wyoming Air Quality Advisory Board
Website: http://deq.state.wy.us/aqd/
Notes / Source Documents: Wyoming has specific NOx regulations for spark ignited(gas) engines. For other regulations and further information, please see the attached websites and tables of EPA 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

Bob Schick
Phone: (307) 777-3772
Email: bschic@missc.state.wy.us