The COMET-Farm^TM tool is the practical, web-based application of the USDA entity-level methods for greenhouse gas inventories. This workshop will provide hands-on instruction on greenhouse accounting at field, parcel, stand, farm and ranch scale. Over the past year there have been many enhancements and improvements to the COMET-Farm^TM tool.  These added features will be covered during this workshop. Some of the enhancements include a new Forest Land module, the additions of specialty crops to the cropland module, and the ability evaluate livestock grazing on croplands, pasture and range. The workshop will address how the tool was developed, and the implantation of the USDA document Quantifying Greenhouse Gas Fluxes in Agriculture and Forestry: Methods for Entity-Scale Inventory.  We encourage anyone interested evaluating the potential for carbon sequestration and greenhouse gas mitigation to attend the workshop. The workshop will benefit new and current users of the tool.