Νέα Αρχιτεκτονική της Αυτοδιοίκησης και της Αποκεντρωμένης Διοίκησης − Πρόγραμμα Καλλικράτης.
This law establishes a new administrative architecture for local government and decentralized administration in Greece. It aims to streamline public administration, reduce operational costs, and improve the efficiency of local governance by restructuring municipalities and regions. The reform affects local government officials, municipal employees, and citizens through the consolidation of local authorities and a redistribution of administrative powers and responsibilities.