Date:                                          July 20, 2006

Recipients:                                Members and Independent Software Vendors

Authorized by:                           Jeffrey S. Hersh

Title:                                          Trading Community Notice

Action Date:                              Tuesday, July 25, 2006

Document Recommended for: Key Contacts, Trading Floor Staff, System Administrators

Related Bulletins:                     Bulletin #67/2006

Attachment:                               n/a

SUMMARY:

A CBOT Notice regarding trading floor access until 7:30 p.m. during the week of July 23, 2006 has been distributed.  Please contact John Van Der Bleek at 312-435-3591 or Tom McCabe at 312-341-3121 if you have any questions.

Please contact your Key Account Manager if you have any questions about this Bulletin.