Preliminary Part 1 Definitions Division 2 Section 5 Division 2—Definitions 5 Definitions In this Act: ABN has the same meaning as in the A New Tax System (Australian Business Number) Act 1999. acquisition of property has the same meaning as in paragraph 51(xxxi) of the Constitution. adverse security assessment has the same meaning as in Part IV of the Australian Security Intelligence Organisation Act 1979. appointed officer, for an unincorporated foreign company, means: (a) the secretary of the company; or (b) an officer of the company appointed to hold property on behalf of the company. approved form means a form approved by the Secretary. associate has the meaning given by section 8B. civil penalty provision has the same meaning as in the Regulatory Powers Act. commencing day means the day this Act commences. corporate entity means an entity other than an individual. critical electricity asset has the meaning given by section 10. critical gas asset has the meaning given by section 12. critical infrastructure asset has the meaning given by section 9. critical port has the meaning given by section 11. critical water asset means one or more water or sewerage systems or networks that: (a) are managed by a single water utility; and No. 29, 2018 Security of Critical Infrastructure Act 2018 Authorised Version C2018A00029 5