All Tranby parents are members of the P&F Association.

The rules of the Association describes the purposes of the Association:

2.1 Support and promote the interests and moral, physical, social and educational welfare of the students attending Tranby College ("the College") in accordance with the aim and policies of the College as determined by the College Council.

2.2 Provide a means of support for members.

2.3 To work with and support the Parent Liaison for each class.

2.4 Promote and facilitate communication on all matters of interest between parents, the Principal and members of College staff to foster an atmosphere of community and cooperation.

2.5 Provide the opportunity for Parents and Friends to meet socially in a spirit of Christian fellowship (by organising social events for all Members and friends and including non member groups in order to enhance the standing of the College in the local community.)

2.6 Fellowship and fundraising are aims of Association functions.

2.7 Organise or facilitate the organisation of Parent Forums on topics of interest to the Membership.

The Association is run by an Executive Committee consisting of four positions elected at the Annual General Meeting (the Chairperson, Deputy Chairperson, Secretary and Treasurer), and the coopted members including representatives from each section of the school and staff. This Committee meets monthly with the Principal and parents should approach a member of the Committee if they want an issue raised at one of these meetings.

General meetings of the Association are held each term with the term 4 meeting being the Annual General Meeting. The College Council addresses this meeting.

A parent liaison system has operated for a number of years in the Junior School and from time to time in the Middle School. Opportunities to become involved are advertised in the weekly newsletter.

P and F Events are scheduled well in advance and the School Newsletter advertises them.