[1] The facts and circumstances relating to this appeal are set out in the judgment of Southwood J and I need not repeat them. What follows are my reasons for allowing this appeal on 23 September 2009 and declaring the decision of the adjudicator void.
[2] In order for the adjudicator to have jurisdiction to adjudicate a payment dispute, s 28 of the Construction Contracts (Security of Payments) Act (the Act) sets out certain criteria which must be met. Relevantly for these purposes, the written application to have the payment dispute adjudicated must be made by serving the written application on the other party to the contract within 90 days after the dispute arises. Subsection 33(1)(a)(ii) of the Act provides that the adjudicator must dismiss the application without making a determination on its merits if the application has not been prepared and served in accordance with s 28.
[3] Subsection 8(a) of the Act provides that a payment dispute arises if, when the amount claimed in a payment claim is due to be paid under the contract, the amount has not been paid in full or the claim has been rejected or wholly or partly disputed.
[4] Subsection 4(a) of the Act defines a payment claim to mean a claim under a construction contract by the contractor to the principal for payment of an amount in relation to the performance by the contractor of its obligations under the contract.
[5] The adjudicator found that under clause 13 of the construction contract, accounts were to be paid 30 days from the end of the month in which the invoice was received.
[6] It is common ground that most of the amounts claimed in the application had been previously claimed on invoices that fell due for payment more than 90 days before the service of the application.
[7] The respondent submitted before the adjudicator that the application was out of time.
[8] Subsection 28(2)(b) of the Act provides that an application must state the details of or have attached to it any payment claim that has given rise to the payment dispute.
[9] The application did not have attached to it the original invoices which had been the subject of payment claims which were overdue. What the applicant did was to attach to the application what was described as "a summary of the invoices rendered for the hire of the Equipment and the payments received in respect of those invoices ..." (AB 19-20). The application also referred to a payment claim made under the contract on 1May 2009 which was allegedly attached to the application. That "payment claim" was not signed as required by the terms of the contract and the first time the appellant had seen it was at the time of service of the application. Importantly, it related to invoices which had previously been sent to the appellant and which were payment claims in themselves, most of which had fallen due for payment more than 90 days before the service of the application.
[10] The adjudicator decided by reference to a decision of a magistrate in another matter that even though a payment claim had already been made in respect of a particular amount arising under the contract, there was nothing to stop the service of a second or subsequent payment claim. I doubt whether the decision of the learned Magistrate made any such ruling. The Act, unlike s 13(b) of the Building and Construction Industry Security of Payment Act 1999 (NSW), does not specifically permit a payment claim including an amount that has been the subject of a previous payment claim and does not specifically permit a second or subsequent payment claim for an amount which has already been the subject of a payment claim.
[11] In my opinion, the Act does not envisage that a payment claim which includes a claim which has already been the subject of a previous payment claim, but which is out of time for the purposes of s 28 to be available for adjudication. If the Act intended repeat claims could be adjudicated, it would defeat the purpose of the 90 day time limit. Furthermore, the Act makes no provision for an extension of time except where s 39(2) of the Act applies and it is instructive to see what that provision contemplates.
[12] Under s 33(2) of the Act, if an application is not dismissed or determined by an adjudicator within the prescribed time, it is taken to be dismissed when the time ends. Section 39(2) provides that in those circumstances, a further application may be made within 28 days. There is no other provision of the Act allowing for a further application in respect of the same payment claim. Furthermore, there is no power given to an adjudicator (or to anyone else) to extend the 90 day time limit.
[13] Section 48(3) of the Act contains a privative clause. Except as provided by s 48(1) (which applies only where the adjudicator dismisses the application under s 33(1)(a)), a decision of an adjudicator cannot be appealed or reviewed. However, given the nature of the tribunal which the Act provides for, this provision does not prevent the Court from declaring that a determination is void for jurisdictional error of a kind where the tribunal wrongly construes the Act.[1] I do not think there is any doubt that the adjudicator cannot assume jurisdiction by an error of law going to his jurisdiction. In Independent Fire Sprinklers (NT) Pty Ltd v Sunbuild Pty Ltd,[2] I held that the decision of an adjudicator who wrongly determined whether the 90 day time limit had been complied with, was not void. The Judge below felt constrained to follow what I then said. But that was a case of non-jurisdictional error. In my opinion, an adjudicator cannot wrongly construe the Act on a question going to his jurisdiction to decide the adjudication on the merits.[3] As Marshall CJ said in Marbury v Madison[4] in a passage quoted with approval by Brennan J in Attorney-General (NSW) v Quin:[5]