The Act uses a small set of defined concepts to delimit the prohibited activities and the enforcement framework. These definitions and concepts determine what is prohibited, what falls within a statutory exception, and who may be liable.
Definitions: s 4 supplies statutory meanings. Notable definitions include enrichment (process increasing isotope proportion relative to natural abundance), mine (in relation to uranium, including production of uranium ore concentrates in a mill or plant), nuclear fuel cycle (any process or step in utilisation of material capable of undergoing nuclear fission, including ultimate disposal), nuclear material (any radioactive substance associated with the nuclear fuel cycle, including radioactive waste material), and nuclear reactor (a device designed to produce controlled nuclear fission). The Act also defines nuclear facility by cross-reference to s 8 and defines regulation as a regulation made under the Act (s 4).
Nuclear facility (s 8(1)): the Act enumerates classes of facilities that qualify as "nuclear facility" for the purpose of the prohibition in s 8(2). The list is explicit and categorical: conversion facilities for producing chemicals to enable enrichment (s 8(1)(a)); isotope separation or enrichment plants (s 8(1)(b)); fabrication plants or facilities to transform nuclear material into reactor fuel (s 8(1)(c)); nuclear reactors of any purpose including non-electricity purposes (s 8(1)(d)); reprocessing plants (s 8(1)(e)); and separate storage installations for storage or disposal of nuclear material used in or resulting from the above (s 8(1)(f)). Because s 4 defines "nuclear facility" by reference to s 8, the enumerated list is central to the Act’s substantive prohibitions.
Prohibition and exceptions: s 7(1) creates the blanket prohibition on uranium mining. Section 7(3) provides an exception where uranium is incidentally encountered during mining for other minerals, subject to two conditions: the person must establish reasonable grounds for believing the uranium content removed to that stage does not exceed 0.02 per cent by weight (s 7(3)(a)), and must comply with any prescribed regulatory conditions regarding mining, treatment, handling and disposal of the material containing uranium (s 7(3)(b)). Section 7(4) permits use of radiometric or other means to search for non-uranium minerals. Section 8(3) lists three exceptions to the prohibition on constructing or operating a nuclear facility: (a) construction or operation under a Commonwealth Act by the Australian Atomic Energy Commission or its successor; (b) construction or operation of facilities for storage or disposal of radioactive waste from authorised research or medical uses under the Radioactive Substances Act 1957; and (c) operation of nuclear-powered vessels.
Binding and priority: s 5 states the Act binds the Crown "so far as the legislative power of Parliament permits". Section 6(1) gives the Act effect "notwithstanding any other Act or law to the contrary", subject to s 6(2) which expressly preserves operation of the Protection from Harmful Radiation Act 1990 and the Work Health and Safety Act 2011. This structure makes the prohibitions a high-priority State instrument, while preserving two specific legislative regimes.
Enforcement and remedies: Part 3 creates both private enforcement and criminal exposure. Section 10(1) permits "any person" to bring proceedings in the Land and Environment Court for orders to remedy or restrain a breach of the Act, whether or not a private right has been infringed. Section 10(4) empowers the Court to make orders it thinks fit to remedy or restrain breaches. Section 12 confines criminal proceedings to the Land and Environment Court in its summary jurisdiction. Section 11 creates deemed liability for directors and persons "concerned in management" of a corporation who knowingly authorise or permit a corporate contravention.
Regulations and delegation: s 13 authorises the Governor to make regulations not inconsistent with the Act, including offences up to 20 penalty units (s 13(2)). Section 13(3)(c) allows regulations to authorise matters to be determined by specified persons or bodies, thereby enabling delegated decision-making within the regulatory architecture.
Procedural and structural details: commencement is staged: s 1 and s 2 commence on assent (s 2(1)), and the remainder commences on proclamation by the Governor (s 2(2)). Sections 14 and 15 have been repealed and the Act lists several amendment references in the marginal notes for various sections.
These concepts determine how the prohibitions operate in practice: what activities are forbidden, what exceptions apply, where disputes and prosecutions are heard, how Crown and Commonwealth activities interact with State prohibitions, and how the regulatory scaffolding can be used to specify conditions or create lesser offences.