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Membership
Last updated 15 March 2008

The subscription varies from country to country but is based on US$35. For a full list please see subscription rates. The year ends on 31 December but those joining after 1 September will not be asked for their second subscription the following year.

Membership can be in the name of the individual or an organisation (but if you opt for the latter, please give us a contact name).

For more details on how to join, including the application form, use the links below.