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The University of Minnesota has introduced a tool used by county planners and livestock producers for developing a science-based estimate of setback distances between a livestock facility and neighbors. This paper provides an overview of the tool and an example illustrating the process for estimating setback distances. Minnesota’s development efforts have resulted in the first scientifically based tool being used in the United States for public policy decisions for location of livestock facilities. More recently, University of Nebraska faculty have initiated a cooperative development effort with the Minnesota team to develop a Nebraska Odor Footprint tool which will perform a similar estimate of setback but with several unique options. This tool will consider wind direction, terrain, and Nebraska weather conditions in estimating directionally varying setbacks. It should assist producers gain approval for construction of new and expanded livestock facilities in Nebraska.