(1) A costs assessor must assess the amount of any disputed costs that are subject to a costs agreement by reference to the provisions of the costs agreement if (a) a relevant provision of the costs agreement specifies the amount, or a rate or other means for calculating the amount, of the costs; and(b) the agreement has not been set aside under section 312 (Setting aside costs agreements) unless the assessor is satisfied (c) that the agreement does not comply in a material respect with any applicable disclosure requirements of Division 3 (Costs disclosure); or(d) that Division 5 (Costs agreements) precludes the law practice concerned from recovering the amount of the costs; or(e) that the parties otherwise agree.(2) The costs assessor is not required to initiate an examination of the matters referred to in subsection (1)(c) and (d) .