The document discusses the implementation of marine spatial planning (MSP) directives at regional levels based on demands from the public sector. It notes that MSP should follow an ecosystem-based approach and integrate available scientific data and tools while considering competing maritime activities and ecological impacts. MSP requires national supportive legislation, international cooperation, and monitoring/evaluation frameworks. The document then examines MSP potential and state of play in several Mediterranean regions and seas before focusing on Crete island, Greece, and the legal aspects and next steps for effective MSP.