Annual membership fees are as follows:
- Individual - $40
- Student / unwaged - $15
- NGO (non-governmental organisation - up to 3 members) - $60, plus $20 for each additional member beyond 3
- Corporate (1-8 members) - $100, plus $30 for each additional member beyond 3
- Corporate (8-16 members) - $250, plus $30 for each additional member beyond 8
- Corporate (17-25 members) - $500, plus $20 for each additional member beyond 25