The IPCC Inventory Software implements the simplest Tier 1 methods for all sectors and Tier 2 methods for most categories under Energy, IPPU and Waste Sectors as well as Agriculture categories under AFOLU Sector in the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. This software has a number of improvements over the earlier software for the Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories, which is not supported anymore.