(d) a statement that it is made under this Act. [33] In the present appeal, the letter of award falls within the ambit of what is defined as a “construction contract” in section 4. Further, either of the two disputing parties, be it the respondent as the “unpaid party” or the appellant as the “non-paying party” [see definition in section 4 of CIPAA 2012] may refer the dispute to adjudication. [34] In our view, so long as a payment claim meets the above mandatory terms set out in section 5(2), and the involved parties, namely the unpaid party and the non-paying party dispute or disagree over the claim, whether on the amount claimed, its due date or in any other respect, such a dispute would fall within the terms of section 7. The terms in subsection 5(2) are not circumscribed or qualified in any 19 manner save that the claim must always refer to the construction contract or rely on a particular provision in the construction contract to which the payment relates. [35] Where a contract provides for a payment certification process as a condition precedent for payment and the amount certified is not accepted, as is the case in the present appeal where the claim is for payment due to under-certification, the learned authors, Chow Kok Fong, Lim Chong Fong and Oon Chee Kheng of Adjudication of Construction Payment Disputes in Malaysia, Navigating the Construction Industry Payment and Adjudication Act [Lexis Nexis 2013, Chapter 2], opined that for the purpose of section 5(2)(b), the “cause of action in this situation may be formulated on the ground that the certification has not been properly carried out in accordance with the terms of the contract. On this cause of action, the claimant’s case would be for the recovery of the difference between the claimed amount and the certified amount” or; “…the extent to which the contractor maintains that he is entitled to a different sum from that certified sum.” [36] As expressed by the same authors [page 43], CIPAA 2012 is likely to be invoked in many cases “where the contractor disputes the certified amount stated in the payment certificates.” The dispute being that the amount claimed differs from the amount certified and that the payment is not for the full sum claimed. The payment claim is about non-payment of a sum which, in the mind of the claimant, is the correct valuation of its work or services rendered under the construction contract. This was, in effect, one of the complaints in Joinery Plus Ltd v Laing Ltd [supra]. 20 [37] We observed that the payment claim in the present appeal and subsequently, the adjudication claim made those claims: “The Unpaid Party had commenced work under the said Project in accordance to the said Contract and has been submitting his Progress Claims No. 1 to No. 9 together with their Variation Orders (VOs) supported with the breakdown, measurement, records and invoices as required. The Non-Paying Party since the 1st claim has been under-certifying the claims without giving any explanation or justifications despite the Unpaid Party requesting numerous times. Besides under-certification, the Non-Paying party did not make full payments as indicated in their Interim Payment Certificates.” [38] We, further, cannot agree with the appellant as sections 2 and 3 of CIPAA 2012 have already specifically provided for its application and non-application. We are mindful that it is not the function of the Court to legislate but to interpret legislation. In the presence of such clear provisions, we cannot accede to the arguments of the appellant. As per section 2, which terms are very wide, the respondent, as an unpaid party is indeed, entitled to bring a payment claim where its claim of non-payment is by reason of its disagreement or dispute over the amount certified. [39] For the sake of completeness, we understand that at the time of the hearing of the adjudication, Progress Claims No. 8 and 9 had yet to be certified and paid. Certification and payment only took place after the adjudication had been completed. There were also disputes on the VOs. Under such circumstances, the learned Adjudicator was indeed properly cloaked with jurisdiction to hear and determine the adjudication claim brought by the respondent. 21 [40] Closely related to this first argument is the appellant’s second ground concerning clause 23.2 of the letter of award, the dispute resolution clause. By clause 23.2, disputes on certification or certified payments ought not to be disposed of summarily in an adjudication proceeding but referred to arbitration. A minority view in Martego Sdn Bhd v Arkitek Meor & Chew Sdn Bhd [supra] is cited in support. [41] With respect to learned counsel for the appellant, the reliance on the minority view is misplaced. The decision in Martego Sdn Bhd v Arkitek Meor & Chew Sdn Bhd concerned the issue of whether CIPAA 2012 applied to final claims, an issue which does not arise in the present appeal. That is quite different and cannot be the basis for suggesting that the view of the dissenting judge was expressed in relation to under-certifications. Having scrutinised the dissenting judgment in that decision, we further found no reference to or discussions on under-certifications. In any event, given our earlier view that payment claims do frequently involve disputes over certified claims, and the extensive ambit of adjudication, this argument is without merit. [42] As for the submissions on clause 23.0 of the letter of award, we are of the view that the presence of this dispute resolution clause does not and in fact, cannot oust the jurisdiction and application of CIPAA