The Minister holds extensive discretionary powers:
Granting and managing permits (sections 9 to 12): the Minister may grant a permit for any authorised activity, subject to conditions the Minister thinks fit. In deciding whether to grant and on what conditions, the Minister must have regard to the purposes and principles of the Madrid Protocol, and (where seals in Seals Convention waters are affected) the Seals Convention. The Minister may vary, suspend, or revoke a permit where a condition has been contravened or where necessary to conserve Antarctic fauna and flora (section 11).
Specially protected species and areas: the Minister may declare a species to be a specially protected species (section 7C) and the Governor-General may declare areas as specially protected or specially managed by Proclamation (section 8) and sites/monuments as historic sites or monuments (section 8A).
Environmental impact determinations: the Minister determines whether a proposed activity has negligible, minor or transitory, or more than minor or transitory impact (sections 12E, 12H). This determination gates the level of environmental evaluation required and the conditions that apply.
Authorisation and refusal: for activities with more than minor or transitory impact, the Minister must either authorise in the Gazette or refuse, giving reasons in both cases (section 12L). Once a final comprehensive environmental evaluation has been considered, the Minister cannot simply let the matter lapse.
Variation and revocation of authorisations: the Minister may vary, suspend, or revoke Part 3 authorisations where conditions have not been complied with or where necessary to act consistently with the basic environmental principles (section 12N). Where irreversible environmental damage would be likely, variations can take effect immediately; otherwise there is a 14-day notice period.
Delegate and cooperative powers: the Minister may delegate most functions to departmental officers (section 27), but cannot delegate the power to make section 12L authorisations, or to vary or revoke them, or to apply for civil penalty orders. The Minister may also make arrangements with State and Territory governments for officers to perform functions under the Act (section 25), and may cooperate with any government or organisation on Antarctic conservation programs (section 26).
Appointment of inspectors: the Minister may appoint any person as an inspector (section 13). Members of the Australian Federal Police and Territory police forces are inspectors by operation of law (section 14).
Inspector powers: inspectors may search vehicles, sleds, aircraft, and vessels on reasonable grounds, stop and detain them, require persons to state their name and address, require production of permits and Part 3 authorisations, and seize items reasonably believed to have been involved in an offence or civil penalty contravention (sections 17, 18). Inspectors may also arrest without warrant where they reasonably believe an offence has been committed and proceedings by summons would not be effective (section 16).