The church maintains a system of geographical parishes organized into dioceses and archdioceses. Catholic bishops are usually leaders of territorial units called dioceses. Most are administered by individual dioceses and parishes. The church maintains a system of geographical parishes organized into dioceses. It is composed of thirteen dioceses, divided into parishes. This decreed that bishops were to investigate the presence of heresy within their respective dioceses. The Antiochian Archdiocese is divided in nine territorial dioceses. The crown had authority to draw the boundaries for dioceses and parishes. Bishops have the last say on doctrinal questions within their respective dioceses. The church has 60 bishops and 44 dioceses. There are six archdioceses and 41 dioceses. Work went forward with the schemata on the Church, bishops and dioceses, and ecumenism. The 176 Latin dioceses are divided into 32 ecclesiastical provinces. There are 120,000 Episcopalians in 9 dioceses (Anglican Episcopal Church of Brazil). However, the Roman Catholic dioceses of Metz and of Strasbourg became exempt jurisdictions.