August 9, 2005

Via E-Mail

Office of the Secretariat

Commodity Futures Trading Commission
Three Lafayette Centre

1155 21st Street, N.W.

Washington, D.C. 20581

Re: Rule Certification. NYMEX Submission 05.140: Notification of
Amendments to NYMEX Rules 9.26, 9.27, and 9.34 for Eight New
Electricity Futures Contracts.

Dear Ms. Jean Webb:

The New York Mercantile Exchange ("NYMEX" or the "Exchange") is notifying the
Commodity Futures Trading Commission (“CFTC” or “Commission”) of amendments to
NYMEX Rules 9.26, All Month/Any One Month Position Accountability; 9.27, Expiration and
Current Delivery Month Position Limits or Position Accountability; and 9.34, Reporting Levels.

Effective for trade date August 15, 2005, these amendments include the addition of
position limits, accountability levels, and reporting levels for eight new Electricity Futures
Contracts. Pursuant to Section 5c(c) of the Commodity Exchange Act (“Act”) and CFTC Rule
40.6, the Exchange hereby certifies that the attached rule amendment complies with the Act,
including regulations under the Act.

Should you have any questions concerning the above, please contact Anthony V.
Densieski, Senior Director, Market Surveillance, at (212) 299-2881, or Nicholas G. Galati,
Director, Market Surveillance, at (212) 299-2920.

Very truly yours,

Thomas LaSala
Senior Vice President
Compliance and Risk Management

ce: Brian Regan
Nancy Minett


(Additions are in bold and underlined.)
NYMEX Rule 9.26, All Month/Any One Month Position Accountability

Sections (A) through (D)(IV) Cash-Settled Crude Oil and Crude Products remain unchanged.

(D) IV. Cash-Settled Electricity Power Products Net Futures or Futures-Equivalent
Position Accountability Levels
Cinergy Hub Calendar-Month LMP Swap 5,000 contracts
Cinergy Hub Off-Peak LMP Swap 5,000 contracts
Michigan Hub Calendar-Month LMP Swap 5,000 contracts
Michigan Hub Off-Peak LMP Swap 5,000 contracts
MISO Illinois Hub Calendar-Month LMP Swap 5,000 contracts
MISO Illinois Hub Off-Peak LMP Swap 5,000 contracts
Minnesota Hub Calendar-Month LMP Swap 5,000 contracts
Minnesota Hub Off-Peak LMP Swap 5,000 contracts

(Inserted at the end of the list of Cash-Settled Electricity Power Products)
Remainder of the Rule is unchanged.

NYMEX Rule 9.27, Expiration and Current Delivery Month Position Limits or Position Accountability

Sections (A) through (B)(IV) Cash-Settled Crude Oil and Crude Products remain unchanged.

(B) IV. Cash-Settled Electricity Power Products Net Futures or Futures-Equivalent
Expiration Position Limits
Cinergy Hub Calendar-Month LMP Swap 500 contracts
Cinergy Hub Off-Peak LMP Swap 500 contracts
Michigan Hub Calendar-Month LMP Swap 500 contracts
Michigan Hub Off-Peak LMP Swap 500 contracts
MISO Illinois Hub Calendar-Month LMP Swap 500 contracts
MISO Illinois Hub Off-Peak LMP Swap 500 contracts
Minnesota Hub Calendar-Month LMP Swap 500 contracts
Minnesota Hub Off-Peak LMP Swap 500 contracts

(Inserted at the end of the list of Cash-Settled Electricity Power Products)
Remainder of the Rule is unchanged.

NYMEX Rule 9.34, Reporting Levels

Section (A), Commodity remains unchanged.

(A)

Futures Contracts listed for Trading Only on NYMEX ClearPortTM Trading

and also Listed for Clearing of Off-Exchange Transactions Through NYMEX
ClearPortTM Clearing


(Inserted between the Northern Illinois Hub Calendar-Day LMP Swap and the MichCon Basis Swap (Platts IFERC)
contracts)

Cinergy Hub Calendar-Month LMP Swap 25 contracts
Cinergy Hub Off-Peak LMP Swap 25 contracts
Michigan Hub Calendar-Month LMP Swap 25 contracts
Michigan Hub Off-Peak LMP Swap 25 contracts
MISO Illinois Hub Calendar-Month LMP Swap 25 contracts
MISO IMllinois Hub Off-Peak LMP Swap 25 contracts
Minnesota Hub Calendar-Month LMP Swap 25 contracts
Minnesota Hub Off-Peak LMP Swap 25 contracts

Remainder of the Rule is unchanged.