U.S. Environmental Protection Agency. 2003. Water Quality Trading Policy, Office of Water, Issued January 13.http://www.epa.gov/owow/watershed/trading/finalpolicy2003.pdf


U.S. Environmental Protection Agency. 2004. Water Quality Trading Assessment Handbook, EPA 841-B-04-001, Washington, D.C. 

U.S. Environmental Protection Agency .2007. http://www.epa.gov/waterqualitytrading/WQTToolkit.html

Connecticut Department of Environmental Protection. 2005. Connecticut's Nitrogen Control Program. Hartford, Connecticut. http://www.ct.gov/dep/lib/dep/water/lis_water_quality/nitrogen_control_program/ncpfs.pdf.

North Carolina Division of Water Quality. 2003a. Neuse River Basin nutrient sensitive waters management strategy: waste water discharge requirements.  http://portal.ncdenr.org/web/wq/ps/nps/neuse.

North Carolina Division of Water Quality. 2003b. Nonpoint source management program: The Neuse Nutrient strategy. http://portal.ncdenr.org/web/wq/ps/nps/neuse.

Pennsylvania Department of Environmental Protection. 2007. Nutrient and sediment reduction credit trading interim final policy and guidelines.http://www.dep.state.pa.us/river/Nutrient%20trading.htm.

Idaho Department of Environmental Quality. 2005. Water quality trading in Idaho.http://www.deq.state.id.us/water/prog_issues/waste_water/pollutant_trading/

Ross & Associates Environmental Consulting, Ltd. 2000. Lower Boise River effluent trading demonstration project: summary of participant recommendations for a trading framework. Prepared for the Idaho Division of Environmental Quality. Assessed: March 29, 2006.http://www.deq.idaho.gov/media/489512-boise_river_lower_effluent_

Conservation Information Technology Center (2006). “Getting Paid for Stewardship: An Agricultural Community Water Quality Trading Guide.”http://ctic.org/media/users/lvollmer/pdf/GPfS_final%281%29.pdf

Environmental Protection Agency. “Water Quality Trading.” http://www.epa.gov/owow/watershed/trading.htm

Environmental Trading Network. http://www.envtn.org/ 

Fisher-Vanden, Karen and Claire Schary. “A New Approach to Water Quality Trading: Applying lessons from the Acid Rain Program to the lower Boise River Watershed.” Environmental Practice 6 (4) December 2004: 281-295. http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=349019

National Wildlife Federation. “A New Tool for Water Quality – Making Watershed ~ Based Trading Work for You.” June 1999. (Su has this file to link to)