A number of states have developed policies to convert contaminated properties (brownfields) to greenspaces to promote healthier communities and increase physical activity opportunities. These greenspaces can be used for things such as recreation, gardening, community meeting space and natural open space. This study will examine and detail such greenspace conversions in three leading states in this area: Minnesota, Wisconsin and Pennsylvania. Researchers will conduct interviews and review literature to document the conversion programs and their perceived benefits. They will then design a survey to administer to officials involved in the greenspace conversions to examine and explain their experiences. In addition to documenting the state innovations and the perceived benefits, this study will also discuss obstacles faced and will list incentives that seem most beneficial in promoting greenspace conversion.