4.  IMPLEMENTATION

4.1.  The provisions of paragraph 7 of Part 1 (General Provisions) of this Change Protocol shall apply.

4.2.  Where the Medium Value Change:

(a)  is implemented at a Facility and constitutes works, the procedure set out and agreed in the Contractor Response for certifying the completion of the Medium Value Change shall apply to determine whether the Medium Value Change has been completed appropriately.

(b)  constitutes additional or varied Services, the Payment Mechanism shall apply to determine whether the Medium Value Change has been properly implemented.