The Joint Fire Science Program (JFSP) has supported the development of a new resource for defining fuel loading across the variable landscapes of the US. The work entailed compiling existing data on fuel loadings categorized by Existing Vegetation Type (EVT). The data has been analyzed to statistically describe the variability in fuels, and studied to understand the sensitivity of fuel loading variability to fire emissions. The database development, analysis, and resulting database access and visualization system will be reviewed. The presentation will provide some guidance on how to use these new data for improved emissions modeling and other applications.