Preliminary Part 1 Section 4 Intermediate period acts (5) However, for certain acts (called intermediate period acts) done mainly before the judgment of the High Court in Wik Peoples v Queensland (1996) 187 CLR 1, that would be invalid because they fail to pass any of the future act tests in Division 3 of Part 2, or for any other reason because of native title, this Act provides for similar consequences to past acts. Confirmation of extinguishment of native title (6) This Act also confirms that many acts done before the High Court’s judgment, that were either valid, or have been validated under the past act or intermediate period act provisions, will have extinguished native title. If the acts are previous exclusive possession acts (see section 23B), the extinguishment is complete; if the acts are previous non-exclusive possession acts (see section 23F), the extinguishment is to the extent of any inconsistency. Role of Federal Court and National Native Title Tribunal (7) This Act also: (a) provides for the Federal Court to make determinations of native title and compensation; and (aa) provides for the Federal Court to refer native title and compensation applications for mediation; and (ab) provides for the Federal Court to make orders to give effect to terms of agreements reached by parties to proceedings including terms that involve matters other than native title; and (b) establishes a National Native Title Tribunal with power to: (i) make determinations about whether certain future acts can be done and whether certain agreements concerning native title are to be covered by the Act; and (ii) provide assistance or undertake mediation in other matters relating to native title; and Compilation No. 47 Native Title Act 1993 3 Compilation date: 25/09/2021 Registered: 22/10/2021 Authorised Version C2021C00450 registered 22/10/2021