US EPA, National Honor Award: Gold Medal, 2005, For exceptional research in support of Agency needs on landscape-level transgene flow
US EPA, Scientific and Technological Achievement Award: Level I, 2005, For exceptional research that changed the paradigm about the potential for gene flow from GM crops to natural environments
US EPA, Scientific and Technological Achievement Award: Level II, 2007, For ecological research presenting evidence for the escape of transgenic plants into wild populations in the USA
US EPA, National Honor Award: Bronze Medal, 2011, For development of innovative methods used to characterize the ecological consequences of gene flow and dispersal of GM crops on plant communities
US EPA, ORD Honor Award: Bronze Medal, EPA Biofuels Report Team, 2018, For exceptional efforts demonstrating the best qualities of cross-Agency collaboration and cooperation in the development and publication of the 2018 Biofuels Report to Congress
US EPA, Scientific and Technological Achievement Award: Honorable Mention, 2020, A comprehensive framework for evaluating the environmental health and safety implications of engineered nanomaterials