This report analyzes 16 INTERREG IVC projects focused on sustainable transport. It identifies common challenges faced in promoting sustainable transport and organizes over 500 good practices from the projects into 9 topics: land use planning, regional transport authorities, financing public transport, encouraging public transport use, mobility management, intelligent transport systems, accessible transport, low emission transport, and awareness campaigns. The report provides recommendations to policymakers on integrating transport and land use planning, strengthening regional cooperation, and promoting new shared transport options and technologies. It concludes that INTERREG IVC projects have effectively identified and transferred good practices that can improve regional sustainable transport policies across Europe.