steady growth and its membership now comprises 124 National Bridge Organizations (NBOs) with approximately 1,000,000 affiliated members who participate actively in competitive bridge events (locally, nationally and internationally). Each National Bridge Organization agrees to fulfill certain requirements, such as opening its ranks to all its citizens and residents and upholding a standard of ethics acceptable to the WBF. Number ZONE 1 - European Bridge League (Europe) 384,186 (46 NBOs) ZONE 2 - North American Bridge Federation (North America) 124,909 (3 NBOs) ZONE 3 - Confederation Sudamericana de Bridge (South America) 3,575 (10 NBOs) ZONE 4 - Bridge Federation of Asia & the Middle East (Asia & Middle East) 7,307 (11 NBOs) ZONE 5 - Central American & Caribbean Bridge Federation (Central American & Caribbean) 895 (14 NBOs) ZONE 6 – Asia Pacific Bridge Federation (Asia Pacific) 50,242 (12 NBOs) ZONE 7 - South Pacific Bridge Federation (South Pacific) 51,420 (04 NBOs) ZONE 8 - African Bridge Federation (Africa) 6,086 (12 NBOs) 674,317 (112 NBOs) See also List of bridge governing bodies List of bridge competitions and awards References External links World Mind Sports Games, International Mind Sports Association, 2008 or earlier. Posted at usgo.org American Go Association. Confirmed 2011-08-31. (Second copy at World Bridge Federation.) World Bridge Federation WBF zonal organizations (official websites, if available) Zone 1: European Bridge League (EBL) Zone 2: North American Bridge Federation (NABF) Zone 3: Confederación Sudamericana de Bridge (CSB) Zone 4: Bridge Federation of Asia & the Middle East (BFAME) Zone 5: Central American & Caribbean Bridge Federation (CAC) Zone 6: Asia Pacific Bridge Federation (APBF) Zone 7: South Pacific Bridge Federation (SPBF) Zone 8: African Bridge Federation (ABF) Contract bridge governing bodies Bridge Organisations based in Lausanne International sports bodies based in Switzerland Sports organizations established in 1948