• CIDEU, Latin American Center for Strategic and Urban Development.
The Latin American Center for Strategic and Urban Development is an association of 68 cities linked by strategic urban planning (PEU). It was created in 1993 in Barcelona to share the benefits derived from tracking the processes of the PEU. Headquarters are in Barcelona, Spain.
• ICLEI, Local Governments for Sustainability.
The International Council for Local Environmental Initiatives has more than 475 member cities and it aims to build an active network committed with environmental sustainability. European headquarters are in Freiburg, Germany.
It is the main European network of cities. Created in 1986, Eurocities is a network made up of 120 metropolitan cities, 105 from the European Union and 15 from other European countries. Eurocities is opened to every municipal government democratically chosen and to economic and scientific partners (chambers of commerce and universities) in cities with more than 250,000 inhabitants. Headquarters are in Brussels, Belgium.
It is an association of European local authorities to promote local sustainable energy policy and the development of renewable energies in cities. It was created in 1990 and it comprises 200 members from 26 European countries. The headquarters are in the French city of Besançon and in Brussels, Belgium.
• Network of Cities for Climate and Support of the Earth Charter. Agreement of the Ministry for Environment -Spanish Federation of Municipalities and Provinces.
The Network of Spanish Cities for Climate was created on June 1, 2005 in Getafe, Madrid, and it is linked with the FEMP, Spanish Federation of Municipalities and Provinces. Its aim is to promote policies of sustainable development, to boost local policies to fight against climatic change, and to achieve Kioto protocol, Local Agenda 21, and Aalborg Chart 10. 109 cities support the network.
• UCLG (United Cities and Local Governments).
UCLG was created in 2004 after the merging of the International Union of Local Authorities (IULA), the World Federation of United Cities (WFUC), and Metropolis. Its mission is to be the united voice and world advocate of democratic local self-government, promoting its values, objectives and interests through cooperation between local governments in the international community. It has members in over 100 countries. Headquarters are in Barcelona, Spain.
• CEMR (Council of European Municipalities and Regions).
The Council of European Municipalities and Regions was founded in Geneva in 1951 by a group of European mayors. It is the largest organisation of local and regional governments in Europe, and its members are national associations of towns, municipalities and regions from over 30 European countries. Its main aims are to promote a united Europe founded on local autonomy and democracy, and the defence of the role of local entities in the European integration. It has two headquarters: Paris and Brussels.
• FAMCP (Aragonese Federation of Municipalities, Counties and Provinces).
It was created in 1988 and is supported by approximately 600 municipalities of Aragon. Its objective is to defend the interests of local entities and local autonomy, and the development and consolidation of the democratic spirit in municipalities, based on the autonomy and solidarity among local entities. It forms part of the FEMP and its headquarters are in Zaragoza.
Zaragoza is twinned with the cities of Pau, France; Biarritz, France; Zaragoza, Guatemala; La Plata, Argentina; León, Nicaragua; Bethlehem, Palestine; Tijuana, Mexico; Móstoles, Spain; Ponce, Puerto Rico; Coimbra, Portugal, and has special bilateral collaboration agreements with the cities of Toulouse, France; Mostar, Bosnia-Herzegovina; Tirana, Albania; Yulin, China; and Ploiesti, Romania.
La Plata, Argentina.
Ponce, Puerto Rico.