(1) In this section relevant permit or agreement means (a) a permit or agreement, granted or entered into under the Land Use Planning and Approvals Act 1993 , that was in force or in operation immediately before the commencement day; and(b) a building permit, planning permit, or special plumbing permit, granted under the Building Act 2000 , that was in force immediately before the commencement day and to which section 20 does not apply; and(c) a building permit, plumbing permit, or special plumbing permit, granted under the Building Act 2000 after the commencement day and to which section 19 applies; and(d) a permit or agreement, granted or entered into under the Land Use Planning and Approvals Act 1993 after the commencement day and to which section 18 applies;relevant regulated entity , in relation to an relevant permit or agreement in respect of a building or land, means the regulated entity in relation to which an occupier or owner of the building or land is, or is likely to become, a customer within the meaning of the Water and Sewerage Industry Act 2008 ;relevant terms and conditions means the terms and conditions, of a relevant permit or agreement, that relate to the provision of water or sewerage services.(2) If a relevant permit or agreement is granted to, or entered into by, a person before the commencement day (a) the person and the relevant regulated entity are to be taken, on and from that day, to have entered into a customer contract on the same terms and conditions as the relevant terms and conditions; and(b) the customer contract is to remain in operation until another customer contract is entered into between the regulated entity and the person.(3) If a relevant permit or agreement is granted to, or entered into by, a person on a day after the commencement day (a) the person and the relevant regulated entity are to be taken, on and from the day the permit is granted or the agreement is entered into, to have entered into a customer contract on the same terms and conditions as the relevant terms and conditions; and(b) the customer contract is to remain in operation until another customer contract is entered into between the regulated entity and the person.