The Confraternity of Christian Doctrine (CCD) is an Ecclesiastical Organisation of the diocese of Wollongong. It provides religious education and Christian formation for Catholic children in public schools (both primary and secondary).
The Bishop's Office, Chancery or Curia supports the mission of the Church through service to the parishes and agencies of the Diocese in a range of communication, pastoral, liturgical, financial and administrative activities.
The Tribunal is a service of the Diocese of Wollongong to assist with the pastoral care of divorced and remarried persons seeking to have their marriage recognised in the Church, divorced persons seeking to remarry, and divorced persons seeking clarification of their standing in the Church.
The Wollongong Tribunal operates as part of the Regional Tribunal of the Catholic Church for NSW & ACT.