The excessive territorial fragmentation leads to low budget revenues and development potential at national, local and regional levels. Since the competences of central, regional, and local authorities are intertwined, competences of these administrative bodies ought to be defined clearly and legislated decisively so that they stand firmly against any future attempt to bend them. The processes of decentralization and regionalization are companions to economic and political reform. These policies are interlinked, therefore by clear division of responsibilities and competences; this will increase the institutional capacities of the local public authorities in terms of regional development policy and projects implementation. Eastern partnership countries’ aspiration to accession to EU calls for their transformation into competitive countries, able to ensure economic growth based on European trends. The desire for accession was an important factor for administrative and territorial reform processes (based on principles of regionalism, multi-level governance and subsidiarity) in most countries. Some of the countries chose regional development policy and division in regions, levels at which development is planned and implemented and levels at which is easier identifying the development possibilities, and stimulating and controlling development in harmony with national goals.