- Sources for financial funding of the organisation shall be:
- regular membership fees payable by ordinary, associate, trial associate, international and individual members;
- contributions, donations and government or foundation grants;
- revenues from the sale of publications, and other properties;
- percentage of registration fees from World Congresses, exact percentage to be determined by the Board according to the Internal Rules; and
- other revenues as mentioned in Article 7.
- Limits for Membership fees shall be determined by the GA. Each Member which is liable for the payment of membership fees is required to pay the annual fee by the date specified by the Board in order to remain a member in good standing.