There are four modes in which persons become members:
1. Ordinary membership is available to any person interested in the Society's objectives, who applies for it, and is approved by the Executive. The Executive Committee may elect any person as an ordinary member.
2. Associate membership is available to students and retired members. The Executive Committee may elect any person who is a bone fide student, an ordinary member who is retired, or such other members that the committee may decide, to be an Associate member. Subscription for an associate member will be at the discretion of the committee. Associate members will be entitled to all the privileges that ordinary members receive.
3. Sustaining membership is available to Corporate organisations. The Executive Committee may elect to membership any organisation whose objectives are similar to that of the Society.
4. Life members are elected at the Annual General Meeting or Special General Meeting on the recommendation of the Executive. Any member who has given outstanding service to the Society may be elected as a Life Member at any annual or special general meeting. Nominations for life membership can only be made at an annual or special general meeting by the Executive Committee. Members must submit a recommendation for nomination in writing for consideration by the Executive Committee at least 30 days prior to an annual or special general meeting.
Members are expected to have read and accepted the rules of the Society.