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New South Wales act
What this Act does (mechanically)
The Act makes most State laws operate in the "coastal sea" as if that sea were part of the State (s 4). The term "coastal sea" is defined to include the territorial sea adjacent to the State, the adjacent sea on the landward side of the territorial sea that is outside State limits, and the airspace, seabed and sub‑soil above and below those waters (s 3(1)).
Criminal laws and Commonwealth laws are excluded from this extension; the Act covers State substantive and procedural laws except criminal laws and laws of the Commonwealth (s 4).
Instruments made under State law are included: a reference to a law in force in the State includes instruments made under that law (s 3(2)).
Officials and bodies that have powers under State law may exercise those powers in relation to the coastal sea as if the coastal sea were part of the State (s 6(1)). State courts obtain jurisdiction over matters arising from those State laws as they apply to the coastal sea (s 6(2)).
The Act preserves ordinary limits on applicability: a State provision does not become applicable in a place where it is incapable of applying, or where the State law expressly excludes that place or limits application to a locality that does not include the coastal sea (s 5(1)). Subsection 5(2) clarifies that limitations framed by territorial jurisdiction do not, by themselves, trigger subsection (1).
The Governor may make regulations to carry the Act into effect, including regulations that specify particular State provisions (or classes of provisions), particular acts or classes of acts, or particular circumstances in which specified State provisions do not apply by virtue of this Act (s 7(1)–(3)).
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Direct links to the current provisions in Application of Laws (Coastal Sea) Act 1980.
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View on official registerSourced from legislation.nsw.gov.au, CC BY 4.0.
Stated purpose and how that purpose is implemented
Costs, incentives, trade‑offs and who pays (source references)
Compliance costs fall on persons and entities carrying out activities in the coastal sea because those activities become subject to State laws and any instruments under those laws (s 4; s 3(2)).
Enforcement and adjudication costs fall on State authorities and courts that must exercise powers and determine disputes under State law as applied to the coastal sea (s 6(1)–(2)).
The Governor’s regulation power can limit or clarify which State provisions apply in particular circumstances (s 7(2)). That power shifts some implementation choices from Parliament to the executive, creating administrative discretion over which State provisions are excluded from operation in the coastal sea.
Limits, interaction with other regimes and implementation risks
Criminal law is excluded from the Act’s reach, and Commonwealth laws remain unaffected (s 4). This separates State civil/regulatory coverage from Commonwealth criminal jurisdiction.
Section 3(3) excludes, so far as relevant, any State law that would regulate or purport to regulate coastal trading as mentioned in the cited Imperial statute. That narrows the Act’s scope where federal or Imperial trading rules operate (s 3(3)).
The Act applies written and unwritten State laws (s 4) subject to practical limits in s 5: a State provision that cannot sensibly apply to that place, or that is expressly confined by its terms, will not be made applicable by this Act (s 5(1)). This produces potential interpretive tasks for courts to determine whether particular provisions can be applied to the coastal sea (s 5(1)–(2); s 6(2)).
Behavioural effects and incentives
People and businesses operating in or above the coastal sea must follow State regulatory regimes that are applicable under the Act, creating an incentive to assess and comply with State licensing, safety, environmental or other administrative rules where they apply (s 4; s 3(2)).
Where the Governor uses regulation‑making power to carve out classes of provisions or circumstances (s 7(2)), operators may face different compliance obligations depending on those regulations, which can affect planning and investment choices.
Practical points on implementation and discretion
The Act gives State institutions the legal capacity to act in the coastal sea but leaves open which State provisions will in practice be enforced there; that will depend on (a) whether the provisions are capable of applying (s 5(1)), (b) how courts interpret "as if the coastal sea were part of the State" (s 4; s 6(2)), and (c) any regulations the Governor makes under s 7.
The Act expressly includes instruments (regulations, licences and other subordinate instruments) made under State law in the scope of what can apply in the coastal sea (s 3(2)), increasing the range of rules that may impose obligations or confer powers offshore.
Key sections to consult when applying this Act: s 3 (definitions), s 4 (application of State laws), s 5 (limits on applicability), s 6 (powers and jurisdiction), s 7 (regulation‑making power).