http://www.crs.gov
http://www.epa.gov/otaq/renewablefuels/
http://www.epa.gov/otaq/fuels/renewablefuels/documents/arkansas-rfs-waiver-request.pdf
http://www.epa.gov/
http://www.epa.gov/otaq/renewablefuels/rfs2-preamble.pdf
http://www.cmegroup.com/trading/agricultural/grain-and-oilseed/
http://www.api.org/news-and-media/news/
http://www.ethanolproducer.com/articles/10489/examining-epas-authority-to-reduce-rfs-volumerequirements
http://www.epa.gov/otaq/renewablefuels/rfs2-preamble.pdf
http://www.epa.gov/otaq/fuels/
http://www.epa.gov/otaq/renewablefuels/rfs2-preamble.pdf