The purpose of this project was to design a national bat monitoring strategy to be used by State, Provincial, and Federal agencies, Tribes, and other partner organizations to monitor bat populations at various spatial scales. Another purpose was to establish a robust database to house the monitoring data as it is collected and maximize the utility of the data to researchers and resource managers. This was a coordinated effort among scientists and researchers in the U.S. Fish and Wildlife Service, U.S. Forest Service, U.S. Geological Survey, National Park Service, and University of Tennessee, National Institute of Mathematical and Biological Synthesis.