Where there is reason to believe that the operations of the Clearing Member is or is likely to be impaired by any event or circumstances, or such action is in the interests of maintaining a safe and efficient clearing facility, CDP may require:

(1) such additional amounts to be paid as a top-up to the Contribution of the Clearing Member as it may, in its absolute discretion, decide; or
(2) a Clearing Member's Contingent Contribution to be deposited with CDP; or
(3) both.

Amended on 1 January 20101 January 2010 and 3 May 20113 May 2011.