This volume describes the Significant Urban Area (SUA) and Urban Centre and Locality/Section of State (UCL/SOS) Structures of the Australian Statistical Geography Standard (ASGS). For each of these structures it details:
- the purpose of each structure
- the hierarchy of regions within each structure
- the delimitation of the various regions
- their relationship with similar structures in the previous Australian Standard Geographical Classification (ASGC)
- the naming conventions
- the coding conventions.