The relevant building surveyor must record the following in writing if the relevant building surveyor determines that a performance solution meets a performance requirement of the BCA in relation to proposed building work—
(a) the performance requirement with which the performance solution complies;
(b) details of any one or more of the following that the relevant building surveyor uses or relies on in making the determination—
(i) the assessment method or methods;
(ii) the details of any expert judgement;
(iii) the details of any tests or calculations;
(iv) the details of any standards or other information.