The National Greenhouse Gas Inventory Document for 1990-2022  of the Republic of Armenia  has been developed under the coordination of the Ministry of Environment of the Republic of Armenia, with the financial support of the Global Environment Facility and the assistance of the United Nations Development Program, within the "Development of the First Biennial Transparency Report of Armenia and the Combined Fifth National Communication and the Second Biennial Transparency Report to the UNFCCC"­ project implemented by the "Hydrometeorology and Monitoring Center" state non-commercial organization.