Over the past few years the fee system has undergone several revisions to incorporate product exchanges such as CBOT, NYMEX and COMEX which have been referred to as the Combined Exchange Fee System (CFS). CME activity remained in a separate legacy application. On April 12, 2010, CME Group will incorporate CME activity into the new and improved fee system, so that users have a single point of entry to reconcile fees. The new consolidated fee system will hereafter be known as the Exchange Fee System (EFS).
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