A Principal and a qualifying Clearing Member of the Trading Member may, at any time before the Cut-off Time for DVP Validation on any Settlement Day, submit an instruction to cancel a DVP transaction. A DVP transaction that is due for settlement on a Settlement Day which is not cancelled by the Cut-off Time for DVP Validation for that Settlement Day shall be locked-in after the said Cut-off Time for DVP Validation and the rights and obligations as detailed in Rule 3 which arise as a result of the matching and validation become irrevocable.

Amended on 3 October 20093 October 2009.