Book excerpt: The Ha Noi Action Plan 2018–2022 addresses the unfinished and expanded agenda of the Greater Mekong Subregion (GMS) Economic Cooperation Program for the remaining 5 years of the GMS Strategic Framework 2012–2022. The Ha Noi Action Plan provides directions and operational focus to the GMS program and guides identification of projects in transport, urban development, energy, agriculture, environment, tourism, trade facilitation, human resource development, and information and communication technology. The Ha Noi Action Plan's key elements are: spatial strategy focused on economic corridors; refinements in sector strategies and priorities; improvements in planning, programming, and monitoring systems and processes; and enhancements in institutional arrangements and partnerships.