The 2019 Regional Greenhouse Gas Emissions Inventory (GHGI) for Southeast Michigan, commissioned by the Michigan Department of Transportation (MDOT) for the Southeast Michigan Council of Governments (SEMCOG), provides a summary of greenhouse gas (GHG) emissions generated within the region during 2019. The inventory was designed to comply with the Global Protocol for Community-scale Greenhouse Gas Emissions Inventories (GPC) basic-level requirements.