This advisory provides important information and details the changes that will occur as a result of Nymex Back-end integration on December 8, 2008. As previously announced in CME Clearing Advisory 08-252, dated October 9, 2008; this phase calls for a merge of clearing level performance bond (margin), collateral management, and settlement banking. Additionally, included are details on CME Clearing testing and training that will be available to all Nymex clearing member firms. An additional CME Clearing House Advisory Notice will be distributed on December 4th. At that time a final determination will be made as to whether the December 8th phase I date will be solidified.
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