A new scientific research centre has been constructed using NEC$4$ ECC main Option E$.$ The Project Manager certifies Completion on $01$ May. The defects date is $52$ weeks after completion of the whole of the works. The Defect Correction period is $4$ weeks.

Which TWO of the following Statements are correct? Select TWO options:

A$.$ The contractor is required to submit its quality plan to the Project manager for acceptance at the intervals stated in the contract data.

B$.$ If the Contractor makes a change to its quality plan it should submit the revised plan to the supervisor for acceptance.

C$.$ The Project Manager may certify Completion if a notified defect has not been corrected by the Contractor.

D$.$ In instruction given by the Project Manager to the contractor to correct a failure to comply with its quality plan is not a compensation event.

E$.$ The Contractor$$s quality management system must be approved by the client before the Contractor is allowed to commence work on site.