7.1  Ancillary Documents

The Contractor shall perform its obligations under, and observe all of the provisions of, the Ancillary Documents and shall not:

(a)  terminate or agree to the termination of all or part of any Ancillary Document;

(b)  make or agree to any material variation of any Ancillary Document;

(c)  in any material respect depart from its obligations (or waive or allow to lapse any rights it may have in a material respect), or procure that any counterparty to an Ancillary Document in any material respect departs from its obligations (or waives or allows to lapse any rights they may have in a material respect), under any Ancillary Document; or

(d)  enter into (or permit the entry into by any other person of) any agreement replacing all or part of (or otherwise materially and adversely affecting the interpretation of) any Ancillary Document,

unless the proposed course of action (and any relevant documentation) has been submitted to the Authority for review under the Review Procedure and there has been no objection made  by the Authority within twenty (20) Business Days of receipt by the Authority of the submission of the proposed course of action (and any relevant documentation) or such shorter period as may be agreed by the parties, and, in the circumstances specified in clause 7.1 (Ancillary Documents), the Contractor has complied with clauses 70 (Assignment and Sub-Contracting) and 71 (Change in Ownership).