Trading Basics and Policy
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EPA's 2003 Water Quality Trading Policy
EPA Water Quality Trading Evaluation (PDF) (90 pp, 527K)
EPA/USDA Water Quality Trading Partnership Agreement
US EPA’s Water Quality Trading Brochure, October 12, 2006 (PDF) (2 pp, 374K)
Water Quality Trading Assessment Handbook
Sharing The Load: Effluent Trading For Indirect Dischargers (PDF) (56 pp, 334K)
Conservation Technology Information Center’s "Getting Paid for Stewardship: An Agricultural Community Water Quality Trading Guide"