studies on city regions, including an assessment profile of the Newcastle-Gateshead city region and a review of numerous city regions across the world. In July 2007, HM Treasury published its Review of sub-national economic development and regeneration, which stated that the government would allow those city regions that wished to work together to form a statutory framework for city regional activity, including powers over transport, skills, planning and economic development. Under the government's Transport Innovation Fund, city regions can band together to pilot forms of road pricing, such as the Greater Manchester congestion charge considered by councils in Greater Manchester (but later rejected by referendum). In the April 2009 Budget, the government announced that Greater Manchester and Leeds would be the first two city regions with formal powers. While this was later discontinued as a result of the May 2010 general election, the Conservative–Liberal Democrat coalition government did agree to the creation of the Greater Manchester Combined Authority in 2011, with all other proposals and the regional development agencies being subsumed into the local enterprise partnerships. France Since January 2010 municipalities, departments and cities can combine into a larger body known as a Metropole. The first Metropole in France, Nice-Cote-d'Azur was created in 2011. In 2014 the government of Jean-Marc Ayrault passed a bill that moved away from the voluntary nature and made it mandatory for all Metropolitan areas of over 600,000 inhabitants to become Metropoles as of January 1, 2015. The first 3 mandatory Metropoles are; Greater Paris Aix-Marseille-Provence Lyon Metropoles take over certain determined responsibilities from the State, other sub-national bodies or quasi-public bodies. Once devolved to the Metropole these responsibilities are the sole responsibility of the Metropole. In addition to assuming responsibility for certain policy Metropoles also take over responsibility for tax collection. Poland Metropolis GZM Spain Community of Madrid Italy Metropolitan cities of Italy, previously Provinces of Italy, including Metropolitan City of Rome Netherlands A plusregio (also called stadsregio) is a regional public body of several Dutch municipalities in an urban area which statutory tasks are assigned under Chapter XI of the "Wet gemeenschappelijke regelingen". Afghanistan Five major city regions have been identified in Afghanistan based on functional relationships. These center around Kabul and the four regional hub cities of Herat, Kandahar, Mazari-i-Sharif and Jalalabad. It is estimated that the five city regions comprise approximately one third of the total Afghan population. References Bibliography Allen J.