30.2 Project Manager deciding Completion

Is it possible to certify the project as complete under 30.2, without physically having a copy of the Building Control occupancy certificate.

I am the PM on an NEC 3 option A contract, and the the Contractor appears to be dragging thier heals, and have stated to me that I cannot sign completion as they have not got Building Control sign off. Bit odd they are not snapping my hand off for me to sign Completion. Can I sign completion, knowing that the Employer needs to take control within two weeks (35.1) and if the contractor does not provide the occupancy certificate within two weeks, I then ask the Supervisor to notify this a Defect?

It appears the Contractor is in the driving seat (no delay damages to be applied)