DALIA’s Open Call Rivers Revived presents a unique opportunity for local and regional authorities from Associated Regions[1] to participate in groundbreaking initiatives aimed at environmental, societal, and economic transformation. The Call aligns with DALIA’s primary objectives, focusing on two key aspects: knowledge transfer and solution scalability for the Danube River Basin. In this regard, the Call is aiming to replicate successful initiatives from DALIA pilot sites (DPs) into new pilot regions with similar conditions. By engaging local and regional authorities, the project aims to demonstrate the transferability, feasibility, and scalability of solutions for the Danube River.