{"id":"C2004A02278","name":"Coastal Waters (State Title) Act 1980","slug":"coastal-waters-state-title-act-1980","collection":"act","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":"77 of 1980","makingDate":null,"administeringDepartment":null,"currentVersion":{"id":7669,"registerId":"commonwealth-C2004A02278-current","compilationNumber":null,"startDate":"2026-03-30","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Short title","content":"##### 1 Short title\n\n  This Act may be cited as the Coastal Waters (State Title) Act 1980.","sortOrder":0},{"sectionNumber":"2","sectionType":"section","heading":"Commencement","content":"##### 2 Commencement\n\n  This Act shall come into operation on a date to be fixed by Proclamation.","sortOrder":1},{"sectionNumber":"3","sectionType":"section","heading":"Interpretation","content":"##### 3 Interpretation\n\n  (1) In this Act:\n\n> authority of the Commonwealth includes all authorities and bodies (other than companies or societies) established by or appointed under the laws of the Commonwealth and also includes a company in which the whole of the shares or stock, or shares or stock carrying more than half of the voting power, is or are owned by or on behalf of the Commonwealth, but does not include the Northern Territory.\n\n> coastal waters of the State, in relation to a State, has the same meaning as that expression has in the Coastal Waters (State Powers) Act 1980 and coastal waters of a State has a corresponding meaning.\n\n  (2) In this Act, so far as the context admits:\n\n(a) a reference to a State shall be read as a reference to the Crown in right of the State; and\n\n(b) a reference to the sea‑bed beneath the coastal waters of a State shall be read as including a reference to the subsoil (including all minerals) beneath that sea‑bed and to structures or other things attached to that sea‑bed.","sortOrder":2},{"sectionNumber":"4","sectionType":"section","heading":"Vesting of title in States","content":"##### 4 Vesting of title in States\n\n  (1) By force of this Act, but subject to this Act, there are vested in each State, upon the date of commencement of this Act, the same right and title to the property in the sea‑bed beneath the coastal waters of the State, as extending on that date, and the same rights in respect of the space (including space occupied by water) above that sea‑bed, as would belong to the State if that sea‑bed were the sea‑bed beneath waters of the sea within the limits of the State.\n  (2) The rights and title vested in a State under subsection (1) are vested subject to:\n\n(a) any right or title to the property in the sea‑bed beneath the coastal waters of the State of any other person (including the Commonwealth) subsisting immediately before the date of commencement of this Act, other than any such right or title of the Commonwealth that may have subsisted by reason only of the sovereignty referred to in the Seas and Submerged Lands Act 1973;\n\n(b) a right of the Commonwealth, or an authority of the Commonwealth authorized by the Commonwealth or by a law of the Commonwealth, to use the sea‑bed and space referred to in subsection (1) for purposes in relation to communications, the safety of navigation, quarantine or defence, and to place, construct and maintain equipment and structures for the purposes of such use; and\n\n(c) a right of the Commonwealth to authorize the construction and use of pipelines for the transport across the sea‑bed referred to in subsection (1) of petroleum (including petroleum in gaseous form), recovered, in accordance with a law of the Commonwealth, from any area of the sea‑bed beyond the coastal waters of the State.\n\n  (3) The rights and title vested by subsection (1) are vested subject to the operation of the Great Barrier Reef Marine Park Act 1975 and accordingly are so qualified that nothing contained in, or done under, that Act shall be taken to constitute an infringement of, or derogation from, any such right or title.\n  (4) Where, after the commencement of this Act, a change takes place in the baseline from which the breadth of the territorial sea of Australia is measured:\n\n(a) if, by reason of the change, the coastal waters of a State extend to an area to which they did not previously extend—subsections (1) and (2) have effect in relation to that area as if the references in those subsections to the date of commencement of this Act were references to the date on which the change occurs; or\n\n(b) if, by reason of the change, the coastal waters of a State cease to extend to an area to which they previously extended—neither the State, nor any person claiming through the State, continues to have, by virtue of the operation of this Act, any right or title in relation to that area.\n\n  (5) It is the intention of the Parliament that, subject to subsections (2) and (3), any right or title vested in a State by this section may be disposed of or otherwise dealt with in accordance with the laws of the State.\n  (6) In this section the Great Barrier Reef Marine Park Act 1975 means that Act as amended from time to time, in its application to any area that is, at the date of commencement of this Act, part of, or capable of being prescribed as part of, the Great Barrier Reef Region as defined in section 3 of that Act.","sortOrder":3},{"sectionNumber":"5","sectionType":"section","heading":"Parts of sea‑bed occupied by Commonwealth and Commonwealth authorities","content":"##### 5 Parts of sea‑bed occupied by Commonwealth and Commonwealth authorities\n\n  (1) In relation to a part of the sea‑bed that was, immediately before the commencement of this Act, occupied by, or by structures, installations or other property of, the Commonwealth or an authority of the Commonwealth, subsections 4(1) and (2) do not take effect upon the commencement of this Act but take effect upon such date, if any, as is fixed by the Minister, by notice in the Gazette, as the date on which those subsections are to take effect in respect of that part of the sea‑bed, and so take effect as if references in those subsections to the date of commencement of this Act were references to the date so fixed.\n  (2) Where a date is fixed under subsection (1) in respect of a part of the sea‑bed, paragraph 4(2)(a) does not operate to preserve any right or title of the Commonwealth or an authority of the Commonwealth that may have subsisted in respect of that part of the sea‑bed immediately before that date.","sortOrder":4},{"sectionNumber":"6","sectionType":"section","heading":"International status of territorial sea","content":"##### 6 International status of territorial sea\n\n  Nothing in this Act affects the status of the territorial sea of Australia under international law or the rights and duties of the Commonwealth in relation to ensuring the observance, in relation to that sea or any other waters, of international law, including the provisions of international agreements binding on the Commonwealth and, in particular, the provisions of the Convention on the Territorial Sea and the Contiguous Zone relating to the right of innocent passage of ships.","sortOrder":5},{"sectionNumber":"7","sectionType":"section","heading":"Application of Commonwealth Places (Application of Laws) Act 1970","content":"##### 7 Application of Commonwealth Places (Application of Laws) Act 1970\n\n  The Commonwealth Places (Application of Laws) Act 1970 has effect on and from the date of commencement of this Act in respect of any place in the coastal waters of a State that is a Commonwealth place, as defined in section 3 of that Act, as if that place were within the limits of the State.","sortOrder":6},{"sectionNumber":"8","sectionType":"section","heading":"Savings","content":"##### 8 Savings\n\n  Nothing in this Act shall be taken to:\n\n(a) extend the limits of any State; or\n\n(b) derogate from any right or title of a State apart from this Act.","sortOrder":7}],"analysis":{"issue_detection":{"absurdities":[],"contradictions":[]},"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":false,"description":"The Act remains focused on its original purpose: vesting title to the seabed in coastal waters in the states, subject to Commonwealth reservations. It has not expanded beyond this scope."},"complexity_factors":["Cross-references to multiple other Acts (Coastal Waters (State Powers) Act 1980, Seas and Submerged Lands Act 1973, Great Barrier Reef Marine Park Act 1975, Commonwealth Places (Application of Laws) Act 1970)","Conditional vesting provisions depending on baseline changes (subsection 4(4))","Exceptions for Commonwealth rights and Great Barrier Reef (subsections 4(2), 4(3))","Special rules for seabed occupied by Commonwealth or its authorities (section 5)","Interpretation section with defined terms like 'authority of the Commonwealth' that includes certain companies","Savings clause (section 8) preserving other rights"],"plain_english_summary":"This Act transfers ownership of the seabed (the land under the sea) within a state's coastal waters from the Commonwealth (federal government) to the state government. However, this transfer is subject to several important qualifications:\n\n- Existing rights of any person (including the Commonwealth) that were in place before the Act started are preserved, except for any rights the Commonwealth had solely because of its sovereignty under the Seas and Submerged Lands Act 1973.\n- The Commonwealth retains the right to use the seabed and the water above it for communications, navigation safety, quarantine, and defence, and to build and maintain equipment and structures for those purposes.\n- The Commonwealth can also authorise pipelines to transport petroleum across the seabed from areas beyond the state's coastal waters.\n- The Great Barrier Reef Marine Park Act 1975 still applies, so nothing in that Act is affected by this transfer.\n- If the baseline for measuring Australia's territorial sea changes, the state's rights automatically expand or contract accordingly.\n- The state can sell or deal with its rights under state law, but the Act does not change state boundaries or affect any existing state rights."},"summary":{"complexity_score":6,"scope_assessment":{"changed":false,"description":"The Act appears to have achieved its original and stated purpose: formally vesting coastal sea floor title in the States as part of the 1980 Commonwealth-State offshore constitutional settlement. No evidence of scope creep — the carve-outs and reservations appear to have been part of the original design to balance State ownership with Commonwealth operational needs and international obligations."},"complexity_factors":["Interplay with multiple other Acts (Coastal Waters (State Powers) Act 1980, Seas and Submerged Lands Act 1973, Great Barrier Reef Marine Park Act 1975, Commonwealth Places (Application of Laws) Act 1970)","Layered conditional vesting of rights — title is granted subject to multiple carve-outs and reservations","Constitutional and federal-state jurisdiction issues underpin the entire Act","Dynamic provisions: rights can expand or contract automatically if the territorial sea baseline changes (s.4(4))","Delayed commencement mechanism for Commonwealth-occupied sea floor (s.5) adds temporal complexity","Cross-references to international law obligations, including treaty provisions on innocent passage","Distinction between property rights, usage rights, and sovereignty — concepts that overlap but are treated separately"],"plain_english_summary":"## Coastal Waters (State Title) Act 1980\n\nThis law **hands ownership of the sea floor (and what's beneath it) to Australia's States**, for the strip of coastal water extending 3 nautical miles out from the coast — known as \"coastal waters.\"\n\n### What does it actually do?\n\nBefore this Act, there was legal uncertainty about who *owned* the sea floor near the coast — the States or the Commonwealth (federal government). This law resolves that by formally giving each State:\n- **Property rights** (legal ownership) over the sea floor beneath their coastal waters\n- **Rights over the space above** that sea floor (including the water column above it)\n- The ability to **sell, lease or otherwise deal** with that sea floor under State law\n\nImportantly, it also vests ownership of everything **beneath** the sea floor — subsoil and minerals.\n\n### Key limits and carve-outs\n\nThe States don't get unlimited control. The Commonwealth (federal government) keeps important rights:\n- To use the sea floor for **communications, navigation safety, quarantine and defence**\n- To build and maintain **pipelines** for transporting oil and gas across that sea floor\n- Pre-existing rights of **third parties** (private individuals or companies) are preserved\n- The **Great Barrier Reef Marine Park Act** still applies and overrides State rights in that region\n- **International law** is unaffected — ships still have the right of \"innocent passage\" (the right to sail through another country's waters peacefully)\n\n### Who does this affect?\n\n- **State governments**: They gain a valuable property asset — the ability to grant leases, licences and rights over the coastal sea floor (e.g. for ports, pipelines, aquaculture, or resource extraction)\n- **Businesses and individuals**: Anyone wanting to use coastal waters infrastructure needs to deal with the relevant State government\n- **The Commonwealth**: Retains operational rights but gives up broader ownership claims over this zone\n- **Queensland specifically**: The Great Barrier Reef carve-out is particularly relevant\n\n### Why does it matter?\n\nThis Act was part of a broader 1980 settlement between the Commonwealth and States over who controls coastal waters. It gives States a clearer legal foundation to regulate and profit from activity on and under the near-shore sea floor."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"The legislation remains tightly focused on its original purpose: vesting property title to the seabed in States while preserving specific Commonwealth interests. The cross-references to related Acts and the baseline adjustment mechanism in section 4(4) are integral to the core function rather than scope creep."},"complexity_factors":["Heavy cross-referencing to companion legislation (*Coastal Waters (State Powers) Act 1980*, *Seas and Submerged Lands Act 1973*, *Great Barrier Reef Marine Park Act 1975*, *Commonwealth Places (Application of Laws) Act 1970*)","Nested conditional logic in section 4(4) dealing with changing territorial baselines (if-then-else structure with automatic legal consequences)","Layered exceptions in section 4(2): three distinct categories of Commonwealth reservations (existing rights, functional uses, petroleum pipelines)","Deferred operation mechanism in section 5 requiring Ministerial Gazette notices for occupied areas","Technical definition of \"authority of the Commonwealth\" excluding the Northern Territory and including majority-owned companies","Incorporation of external law by reference (Great Barrier Reef Marine Park Act 'as amended from time to time')","Savings clause in section 8 clarifying what the Act does NOT do (negative limitations)"],"plain_english_summary":"**What this law does:**\n\nThis Act gives Australian States legal ownership of the seabed beneath their coastal waters (the area between the low-water mark and the 3-nautical-mile territorial sea limit). Before this law, the Commonwealth (federal government) technically owned this seabed under international law principles. This Act transfers that property title to the States.\n\n**Who it affects:**\n\n- **State governments** – they become the legal owners of the seabed and can grant mining leases, fishing rights, and other permits over it\n- **The Commonwealth** – it keeps certain reserved rights for defence, navigation safety, communications, quarantine, and cross-border petroleum pipelines\n- **Existing rights holders** – anyone who already had legal rights to the seabed (like existing mining leases) keeps those rights\n- **The Great Barrier Reef** – special protections apply; the Marine Park Act overrides this vesting of title\n\n**Key features:**\n\n- **The \"vesting\"** (legal handover) happens automatically by force of the Act on commencement\n- **Commonwealth reservations:** The federal government keeps rights to use the seabed for defence, navigation aids, quarantine stations, and communications infrastructure\n- **Petroleum pipelines:** The Commonwealth keeps control over pipelines crossing state seabed that come from federal waters (beyond 3 nautical miles)\n- **Dynamic boundaries:** If Australia's territorial sea baseline changes (due to coastal erosion or new surveys), the Act automatically adjusts which seabed belongs to which State\n- **Occupied areas:** If the Commonwealth was already using part of the seabed (e.g., for a naval base), the handover to the State is delayed until the Minister declares it\n\n**Why it matters:**\n\nThis law settled a major constitutional and practical dispute about who controls Australia's near-shore marine resources. It let States manage offshore mining, fishing, and marine parks in their adjacent waters while protecting federal interests in national security and international obligations. It's the property-law companion to the *Coastal Waters (State Powers) Act 1980*, which gave States legislative power over these same waters."}},"importantCases":[],"_links":{"self":"/api/acts/coastal-waters-state-title-act-1980","history":"/api/acts/coastal-waters-state-title-act-1980/history","analysis":"/api/acts/coastal-waters-state-title-act-1980/analysis","conflicts":"/api/acts/coastal-waters-state-title-act-1980/conflicts","importantCases":"/api/acts/coastal-waters-state-title-act-1980/important-cases","documents":"/api/acts/coastal-waters-state-title-act-1980/documents"}}