Over the past several months, NYMEX/COMEX clearing rules have been harmonized to the extent possible with CME/CBOT Rules.  In some circumstances, however, harmonization was not possible due to the unique characteristics of NYMEX policies or procedures.  This Advisory describes the material differences between existing CME Chapters 8 and 9 and new NYMEX/COMEX Chapters 8 and 9.  The new NYMEX/COMEX rules will become effective on December 4. 
Set forth immediately below is a brief description of the new NYMEX/COMEX Clearing Rules that are materially different than the CME/CBOT Clearing Rules set forth in Chapters 8 and 9.  At the end of this Advisory are marked rules that show the differences between new NYMEX/COMEX Clearing Rules and CME/CBOT Clearing Rules.

If you have any questions regarding these rule changes, please contact CME Clearing at (312) 930-3170.

For the full-text of this advisory, including a detail of the rule harmonization, please click here.

For a complete set of rules that illustrate the changes, please follow the following links:
Chapter 8 Rules

Chapter 9 Rules