The Associations pursues its aims without any discrimination on grounds of race, religion, sex, nationality or political philosophy. Applications for membership are made to the Council, and acceptation will be at the discretion of Council. Council , the governing body of the Association consists of two delegates nominated by each member society, with a maximum of three for each country, and two nominated from each trans-national association. Council may invite two observers from those countries where no national society or association currently exist. Delegates and observers may be substituted in the event that the nominated delegates and observers cannot attend Council meetings.
Council meets at least once a year.
Meetings must be called at least one month in advance. Decisions are taken by majority vote among the delegates. Council may form committees to take responsibility for particular projects or undertakings. Council is responsible for determining the composition of those committees. Members of such committees may be drawn from outside Council.