France is mainly divided into 18 administrative regions: 13 regions in metropolitan France (including the territorial collectivity of Corsica), and five located overseas. The regions are further subdivided into 101 departments, which are numbered mainly alphabetically. This number is used in postal codes and was formerly used on vehicle number plates. Among the 101 departments of France, five (French Guiana, Guadeloupe, Martinique, Mayotte, and Réunion) are in overseas regions (ROMs) that are also simultaneously overseas departments (DOMs), enjoy exactly the same status as metropolitan departments and are an integral part of the European Union. The 101 departments are subdivided into 335
Local administrative unit Local administrative unit Generally, a local administrative unit (LAU) is a low level administrative division of a country, ranked below a province, region, or state. Not all countries describe their locally governed areas this way, but it can be descriptively applied anywhere to refer to counties, municipalities, etc. In the European Union, LAUs are basic components of Classification of Territorial Units for Statistics (NUTS) regions. For each EU member country, two levels of Local Administrative Units (LAU) are defined: LAU 1 and LAU 2, which were previously called NUTS 4 and NUTS 5 respectively, until the NUTS regulation went into