The service contains all maritime boundaries treaties signed by Australia (NOT ALL ARE IN FORCE). Where the original datum of the treaty is not specified as GDA94, all defined points have been transformed by Geoscience Australia's National Geospatial Reference Systems Section to GDA94.

The dataset was created by Geoscience Australia using the framework described in Section 33 of the Offshore Minerals Act 1994. The international, scheduled areas and coastal waters used in this dataset are those found in the historical Australian Maritime Boundary Dataset 2006 (AMB2006). The dataset is comprised of both polygons and points created to very high precision, accurate to within millimetres. The blocks have been cut by Australia's international boundaries, the scheduled areas and the coastal waters. Each block is assigned a polygon, including partial blocks. All blocks are titled with their block ID, and a list of vertices that make up the blocks. Each vertex of the dataset is also replicated as a discrete point in the points dataset. The design of the dataset allows for the exact location of every vertex to be known to millimetre precision. The corner coordinates of blocks are now defined to a high precision, and can be found by querying the appropriate point. The blocks are attributed with fields containing information on: -Block ID -Parent 1 Million Mapsheet -Offshore Area -Epoch of the boundaries used to cut the data AMB2006 -Datum -Origin of the mapsheet in AGD66 -The position of all vertices in the block -The number of vertices in the block -The area of the block in acres -The area of the block in hectares The calculation used to find the area of the blocks is estimated to be precise to better than 1%. This is considered to be sufficient as under the permit and licensing arrangements in the Offshore Minerals Act, the area of a block has no relevance. Therefore the area figure is provided solely for reference. This dataset is published with the permission of the CEO, Geoscience Australia

PLEASE NOTE: These data have been updated. See Related Links for new data. Australian Petroleum Blocks (2006) - Aligned with the historic Australian Maritime Boundary Dataset (AMB2006) V2.0 The digital realisation of Australia's Graticular Framework as set out under the Offshore Petroleum and Greenhouse Gas Storage Act 2006. ESRI Geodatabase. The dataset was created internally by Geoscience Australia using the framework described in Section 33 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006 (OPGGS Act) and previous Acts. The international, scheduled areas and coastal waters used in this dataset are those found in the historic Australian Maritime Boundary Dataset (AMB2006) V2.0 The dataset is comprised of both polygons and points created to very high precision, accurate to within millimetres. The blocks have been cut by Australia's international boundaries, the scheduled areas and the coastal waters. Each block is assigned a polygon, including partial blocks. All blocks are titled with their block ID, and a list of vertices that make up the blocks. Each vertex of the dataset is also replicated as a discrete point in the points dataset. The design of the dataset allows for the exact location of every vertex to be know to millimetre precision. The corner coordinates of blocks are now defined to a high precision, and can be found by querying the appropriate point. Existing production licences AC/P17, AC/RL4, and AC/RL5 are included in the dataset. The blocks are attributed with fields containing information on: Block ID Parent 1 Million Mapsheet Offshore Area Epoch of the boundaries used to cut the data - AMB2014 Datum Origin of the mapsheet in AGD66 The position of all vertices in the block The number of vertices in the block The area of the block in acres The area of the block in hectares The calculation used to find the area of the blocks is estimated to be precise to better than 1%. This is considered to be sufficient as under the permit and licensing arrangements in the OPGGS Act, the area of a block has no relevance. Therefore the area figure is provided solely for reference.

This service contains the limit and extent of Section 3 of the Coastal Waters (State Powers) Act 1980, and the Coastal Waters (Northern Territories Powers) Act 1980. NOTE: the Polygon depicting the area of the coastal waters is not constrained on the landward side. The polygon includes areas that fall within the constitutional limits of the States. When information depicting the landward constitutional limit of the States becomes available, the polygon will be constrained.

This service contains the limit and extent of Section 3 of the Coastal Waters (State Powers) Act 1980, and the Coastal Waters (Northern Territories Powers) Act 1980. NOTE: the Polygon depicting the area of the coastal waters is not constrained on the landward side. The polygon includes areas that fall within the constitutional limits of the States. When information depicting the landward constitutional limit of the States becomes available, the polygon will be constrained.

Geoscience Australia has the primary role in the delineation of Australia's domestic and international maritime limits and boundaries. An output of this activity is the development of the Australian Maritime Boundaries (AMB) database. The current epoch of this database is 2019. It differs from previous epochs by including the Treaty information relevant to the maritime boundary treaty ratified with Timor-Leste on 30 August 2019. This data product contains the digital representation of the treaty between Australia and Timor-Leste. AMB data is published by Geoscience Australia in consultation with other relevant Commonwealth Government agencies including the Attorney-General's Department, the Department of Foreign Affairs and Trade and the Australian Hydrographic Office.. Data coordinates are supplied in the GDA94 datum. Treaties with Timor-Leste - Australian Maritime Boundaries Dataset 2019 will be accessible via the Australian Maritime Spatial Information System (AMSIS) (http://www.ga.gov.au/scientific-topics/marine/jurisdiction/amsis). Product Specifications Coverage: Australia and Territories, current September 2019. Coordinates: Geographical Datum: GDA94 (operationally equivalent to WGS84). Format: ESRI Geodatabase and Shapefile. The geographical extent is approximately between the latitude limits of 9.5 S to 11.5 S and the longitude limits 126 E to 128.5 E. This dataset includes the following disclaimers: AMB data is a digital representation of the international maritime boundary treaties of Australia. In the event of an inconsistency between AMB data and the limits under the various treaties, the latter prevails.

Not current – This service has been deprecated in favor of the 2019 epoch, which includes amendments reflecting new boundary arrangements with Timor-Leste, which came into force on 30 August 2019. The Seas and Submerged Lands Act (SSLA) is the Australian legislation that provides the framework for Australia to declare the baselines, limits and zones provided under the first six parts of the United Nations Convention on the Law of the Sea. These baselines, limits and zones are declared by Proclamations provided for under this act. This service depicts official spatial representation of these proclamations. The service includes feature layers: Normal and Straight baselines limits and locations, Contiguous Zone and limit, Territorial Sea Zone and limit, Exclusive Economic Zone (EEZ) and limit, Continental Shelf limit and locations. NOTE: There are two versions of the Exclusive Economic Zone (EEZ) provided. One depicts the EEZ as proclaimed in the Seas and Submerged Lands Act 1973 - Proclamation under section 10B (26/07/1994). The second version includes amendments reflecting the provisions of the signed but not unratified Treaty between the Government of Australia and the Government of the Republic of Indonesia, establishing an Exclusive Economic Zone Boundary and Certain Seabed Boundaries (Perth, 14 march 1997) [1997] ATNIF 9 - (not yet in force). (Perth Treaty). The version reflecting Perth Treaty EEZ limits and area should be the standard depiction.

Geoscience Australia has the primary role in the delineation of Australia's domestic and international maritime limits and boundaries. An output of this activity is the development of the Australian Maritime Boundaries (AMB) data. AMB is a GIS data product, replacing AMBIS 2006, providing access to the data for Australia's maritime zones. Treaties - Australian Maritime Boundaries Dataset 2014 is a digital representation of Australia's international treaty boundaries. In the event of an inconsistency between AMB data and the limits under any treaty, the latter prevails. The data have been published by Geoscience Australia in consultation with other relevant Commonwealth Government agencies including the Attorney-General's Department, the Department of Foreign Affairs and Trade and the Australian Hydrographic Office. This version contains a number of technical amendments made on the basis of user feedback. These include: - Harmonisation of maritime boundaries, scheduled area and graticular block datasets in block SC51 The Treaties - Australian Maritime Boundaries Dataset 2014a comprises the maritime boundaries determined by treaties between Australia and neighbouring countries. All data coordinates are supplied in the GDA94 datum. Treaties - Australian Maritime Boundaries Dataset 2014a can also be viewed on-line via AMSIS (http://www.ga.gov.au/marine/jurisdiction/amsis.html). Product Specifications Coverage: Australia including all external territories Currency: May 2014. Coordinates: Geographical Datum: GDA94 (functionally equivalent to WGS84). Format: ESRI Geodatabase and REST web service - free online. The area of coverage of the Treaties - Australian Maritime Boundaries Dataset 2014 is for the whole of the Australian marine jurisdiction which includes waters adjacent to the mainland, offshore islands and External Territories. The geographical extent is approximately between the latitude limits of 8 S to 70 S and the longitude limits 39 E to 174 E. This dataset includes the following disclaimers: AMB data is a digital representation of the international maritime boundary treaties of Australia. In the event of an inconsistency between AMB data and the limits under the various treaties, the latter prevails.

The dataset was created by Geoscience Australia using the framework described in Section 33 of the Offshore Minerals Act 1994. The international, scheduled areas and coastal waters used in this dataset are those found in the historical Australian Maritime Boundary Dataset 2006 (AMB2006). The dataset is comprised of both polygons and points created to very high precision, accurate to within millimetres. The blocks have been cut by Australia's international boundaries, the scheduled areas and the coastal waters. Each block is assigned a polygon, including partial blocks. All blocks are titled with their block ID, and a list of vertices that make up the blocks. Each vertex of the dataset is also replicated as a discrete point in the points dataset. The design of the dataset allows for the exact location of every vertex to be known to millimetre precision. The corner coordinates of blocks are now defined to a high precision, and can be found by querying the appropriate point. The blocks are attributed with fields containing information on: -Block ID -Parent 1 Million Mapsheet -Offshore Area -Epoch of the boundaries used to cut the data AMB2006 -Datum -Origin of the mapsheet in AGD66 -The position of all vertices in the block -The number of vertices in the block -The area of the block in acres -The area of the block in hectares The calculation used to find the area of the blocks is estimated to be precise to better than 1%. This is considered to be sufficient as under the permit and licensing arrangements in the Offshore Minerals Act, the area of a block has no relevance. Therefore the area figure is provided solely for reference. This dataset is published with the permission of the CEO, Geoscience Australia

AMSIS is a web based interactive mapping and decision support system that improves access to integrated government and non-government information in the Australian Marine Jurisdiction. AMSIS contains over 80 layers of information including maritime boundaries, bathymetry, physical and environmental information, legal interests, fisheries and shipping that has been sourced from Geoscience Australia, other Australian government agencies and some industry sources. AMSIS also contains the offshore mineral locations data that was used to create the Offshore Minerals Map. AMSIS has been developed using standards to support interoperability enabling integration with the National Oceans Portal and other on-line initiatives. Geoscience Australia is working with other agencies and organisations to add additional information. Information in this application should not be relied upon as the sole source of information for commercial and operational decisions. AMSIS should not be used for navigational purposes.