although an intermediate level of a synod sometimes exists. This congregation / presbytery / synod / general assembly schema is based on the historical structure of the larger Presbyterian churches, such as the Church of Scotland or the Presbyterian Church (U.S.A.); some bodies, such as the Presbyterian Church in America and the Presbyterian Church in Ireland, skip one of the steps between congregation and General Assembly, and usually the step skipped is the Synod. The Church of Scotland abolished the Synod in 1993. Presbyterian governance is practiced by Presbyterian denominations and also by many other Reformed churches. Doctrine Presbyterianism is historically a confessional tradition. This has two implications. The obvious one is that confessional churches express their faith in the form of "confessions of faith," which have some level of authoritative status. However this is based on a more subtle point: In confessional churches, theology is not solely an individual matter. While individuals are encouraged to understand Scripture, and may challenge the current institutional understanding, theology is carried out by the community as a whole. It is this community understanding of theology that is expressed in confessions. However, there has arisen a spectrum of approaches to confessionalism. The manner of subscription, or the degree to which the official standards establish the actual doctrine of the church, is a practical matter. That is, the decisions rendered in ordination and in the courts of the church largely determine what the church means, representing the whole, by its adherence to the doctrinal standard. Some Presbyterian traditions adopt only the Westminster Confession of Faith as the doctrinal standard to which teaching elders are required to subscribe, in contrast to the Larger and Shorter catechisms, which are approved for use in instruction. Many Presbyterian denominations, especially in North America, have adopted all of the Westminster Standards as their standard of doctrine which is subordinate to the Bible. These documents are Calvinistic in their doctrinal orientation. The Presbyterian Church in Canada retains the Westminster Confession of Faith in its original form, while admitting the historical period in which it was written should be understood when it is read. The Westminster Confession is "The principal subordinate standard of the Church of Scotland" but "with due regard to liberty of opinion in points which do not enter into the substance of the Faith" (V). This formulation represents many years of struggle over the extent to which the confession