The New York Mercantile Exchange, Inc. will launch four new NOX Emissions Allowance Futures Contracts commencing Monday, September 26, 2005.

For these products, the quantity fixed for filing reports pursuant to NYMEX Rule 9.33 (Position Reporting) is 25 contracts. If a customer controls or holds a position equal to, or greater than, 25 long or short in any one month in any of these contracts, then all the contracts, whether above the reportable level or not, shall be deemed reportable positions.

For the Clearing Members that file reports pursuant to NYMEX Rule 9.33 in a machine-readable format, the Exchange commodity codes for these additional products are as follows:

Contract Name Commodity Code

Banked NOX Emissions Allowance RO

One-Year Forward NOX Emissions Allowance RP

Two-Year Forward NOX Emissions Allowance RQ

Three-Year Forward NOX Emissions Allowance RR

Additionally, the accountability levels, pursuant to NYMEX Rule 9.26 (All Month/Any One Month Position Accountability), and expiration position limits, pursuant to NYMEX Rule 9.27 (Expiration and Current Delivery Month Position Limits or Position Accountability), for the above contracts are as follows:

Any one Month/All Months Net Futures of Futures-

Equivalent Position Accountability Levels = 2,500 Contracts

Expiration Position Limits = 200 Contracts