12.7 Without prejudice to Clause 12.1, if it should be found that Project Co's Proposals do not fulfil the Authority's Construction Requirements, Project Co shall at its own expense, and in accordance with Clause 12.8 below, amend Project Co's Proposals and rectify the Works or any part affected. Such amendment and rectification shall have the effect that:
12.7.1 Project Co's Proposals shall satisfy the Authority's Construction Requirements; and
12.7.2 following the amendment or rectification, the structural, mechanical and electrical performance of the Facilities will be of an equivalent standard of performance to that set out in Project Co's Proposals prior to their amendment or rectification (for the purpose of this comparison disregarding the fault which required the amendment or rectification to be made).
12.8 Where Clause 12.7 applies, Project Co shall submit its proposal for amending Project Co's Proposals and rectifying the Works (or any part affected) to the Authority's Representative for review under Schedule Part 8 (Review Procedure) and shall not amend Project Co's Proposals or commence or allow the commencement of the rectification of the Works (or any part affected) until it is permitted to proceed in accordance with Schedule Part 8 (Review Procedure).