Type   Feature service Update Frequency   Monthly from the source. Due to processing lag, there may be mismatch between the source data and the portal data Contact Details    https://www.transport.nsw.gov.au/state-transit/about-us/contact-us Relationship to Themes and Datasets     Accuracy    Spatial Reference System    (dataset)    Spatial Reference System     WGS84 (web service)     WGS84 Equivalent To    Spatial Extent   NSW Data Source https://api.transport.nsw.gov.au/v1/maritime/spatial?format=geojson&q=select%20*%20from%20maritime_shallow_water_areas Standards and Specifications     Distributors    https://opendata.transport.nsw.gov.au/dataset/maritime-shallow-water-area Dataset Producers and Contributors    https://opendata.transport.nsw.gov.au/dataset/maritime-shallow-water-area