The purpose of this template is to help you, the National Inventory Coordinator (NIC) or key category analysis (KCA) lead, prepare your country’s national GHG inventory. You may use this template with other software or by following the guidance in the 2006 IPCC Guidelines.[1]  This template facilitates development of key category analysis consistent with future reporting requirements under the Enhanced Transparency Framework[2] (ETF) for National GHG Inventories. The template and tool also accommodate the use of flexibility in meeting this requirement (e.g., using a lower threshold in identifying key categories).   This template uses the IPCC methodologies to determine key categories: Approach 1. Approach 1 assesses the relevance of each category compared to total national emissions in the current year (“level assessment”), and its influence on the overall trend when comparing the current year and the base year (“trend assessment”). In the Approach 1 methodology, key categories are identified using a pre-determined cumulative emissions threshold, where key categories are those that sum to 95% of the total level when summed together in descending order of magnitude.