There is a related requirement in section 91 for the Commission to encourage parties to agree on procedures for preventing and settling disputes, and to include them in an award. Subsection 170LT(8) requires all certified agreements to include 'procedures for preventing and settling disputes between the employers and employees covered by the agreement about matters arising under the agreement_'. It may therefore be grouped with sections 91 and 170LW as derivatives from that aspect of the constitutional head of power associated with the prevention of industrial disputes and conciliation. The recourse to that head of power, or to the corporations power has a principal effect in the case of some certified agreements. It gives the parties scope to agree about matters that may reach beyond what would otherwise have been the range of an arbitrated award in settlement of an industrial dispute. A dispute settlement procedure, established by a consent award or an agreement, may purport to confer on the Commission the task of settling by arbitration or determination, a dispute about matters arising under the agreement, or about the application of the agreement. However, in our view, for that task to be validly conferred, or undertaken, it must be in relation to a matter or thing which the relevant award or agreement may validly require to be dealt with. Thus, in the case of section 170LW, the requirement about the jurisdictional limit of a conferred dispute settlement power is crucial: it must be a dispute 'over the application of the agreement'. As we have already noted, the ambit of disputes potentially within the compass of that expression is dependent upon the content and wording of the agreement. The scope for valid operation may be subject to conjecture. Under the Act, the Commission now has jurisdiction over local disputes in the State of Victoria. It has long had jurisdiction over such disputes in the Australian Capital Territory and the Northern Territory. That jurisdictional coverage of some local 'industrial disputes' may have a bearing on the range of matters or things that could be within the scope of an agreed dispute settlement procedure effectively conferring on the Commission under section 170LW a function to settle referred disputes._