The Board of Directors, on September 13, 2006 approved amendments to Rules 6.00, Exchange Business Day; 6.04, Closing Range and Close; 6.15, Standard Forms of Orders; and 6.16, Obligations of Floor Brokers, on recommendation from the Transition Committee. The amendments to the above-referenced rules codify policies which have been in effect since the inception of side-by-side physical electronic trading on CME GLOBEX® on September 4, 2006 for trade date September 5, 2006, and had previously been addressed in Notices to Members 419, 450, 306, and 315, respectively. The amended Rules will be effective Friday, September 15, 2006.

The amendments cover the following rules:

Exchange Business Day (Rule 6.00)—

• Conforms Rule to reflect current trading sessions
• Deletes reference to Dublin
• Limits reference to ACCESS® to COMEX Division
• Includes GLOBEX® session
• (NTM 419, August 3, 2006)

Closing Range and Close (Rule 6.04)—

• Deletes reference to Brent Crude
• Describes spot-day electronic expiration concurrent with RTH close
• (NTM 450, August 23, 2006)

Standard Forms of Orders (Rule 6.15)—

• Adds “Venue” reference clarifying that floor orders will be deemed orders for open outcry unless otherwise specified by customer
• If not intended for open outcry, order ticket must reflect venue
• If discretion is given, order ticket must state “DV”
• Orders only executable based on events occurring in the venue where placed
• Members accepting venue discretion orders are not held to a best execution standard, but to a due diligence standard
• (NTMs 306 and 06-315, June 8, 2006)

Obligations of Floor Brokers (Rule 6.16)—

• Floor brokers shall not execute an order electronically unless customer has either given discretion or asked for electronic execution
• (NTM 315, June 8, 2006)