6  Changes to the High Value Change Requirements or Approval Criteria

6.1  If the High Value Change Requirements or Approval Criteria are subject to any material variation in relation to a High Value Change by the Authority after the High Value Change Proposal has been submitted then:

6.1.1  Sub-hubco and the Authority shall negotiate in good faith as to the implications on the High Value Change Proposal or High Value Change Stage 2 Submission (as the case may be) and shall seek to agree changes thereto to accommodate the variation (including any change to the Target Cost and/or to the Change Management Fee);

6.1.2  if agreement has not been reached pursuant to paragraph 6.1.1 of this Section 4 (High Value Changes) within twenty (20) Business Days (or such longer period as the parties may agree) then:

(a)  Sub-hubco shall be entitled by notice in writing to the Authority to withdraw the High Value Change Proposal or the High Value Change Stage 2 Submission (as the case may be) and to be paid the Incurred Change Management Fee with the Calculation Date being the date of the variation notified by the Authority; and

(b)  the Authority shall not be entitled to procure the High Value Change without issuing a new Authority Change Notice for the High Value Change and complying with the procedure in this Section 4 (High Value Changes) in relation to that High Value Change.

6.1.3  The Authority may, at any time, give notice in writing to Sub-hubco that it proposes to cancel a High Value Change without completing the process set out in this Section 4 (High Value Changes) in which case the Authority must pay Sub-hubco the Incurred Change Management Fee in respect of the cancelled High Value Change with the Calculation Date being the date of such notice.