Colombia is divided into 32 departments. These in turn are divided into municipalities, though some receive the special category of district. However, there are also provinces, a generic name applied to provinces, districts, regions and subregions. These are generally internal administrative authorities of the departments, more historical than legal. Most Colombian provinces have this kind of subdivision. Those that do not are the departments of Amazonas, Arauca, Caquetá, Casanare, Chocó, Guainía, Guaviare, Putumayo, San Andrés y Providencia, Vaupés, and Vichada.