National sections representing over 4,200 members in 63 countries and territories:
• Congo, Democratic Republic of the Congo, Côte d'Ivoire, Egypt, Nigeria, Senegal.
• Argentina, Barbados, Brazil, Canada, Chile, Colombia, Dominican Republic, Haiti, Mexico, Paraguay, Puerto Rico*, Uruguay, United States of America, Venezuela (Bolivarian Republic of).
• Hong Kong/China, Israel, Japan, Kazakhstan, Republic of Korea, Lebanon, Pakistan, Taiwan/China.
• Armenia, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Catalunya*, Croatia, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Lithuania, Luxembourg, The former Yugoslav Republic of Macedonia, Netherlands, Norway, Poland, Portugal, Romania, Russian Federation, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom of Great Britain and Northern Ireland, Ukraine.
Open sections representing 63 members in 29 countries. Membership countries not specified.