September 22, 2005

Via E-Mail

Office of the Secretariat

Commodity Futures Trading Commission
Three Lafayette Centre

1155 21st Street, N.W.

Washington, D.C. 20581

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Re: Rule Certification. NYMEX Submission 05.169: Notification of
Amendments to NYMEX Rules 9.26, 9.27, and 9.34 for Four New
NOX Emissions Allowance Futures Contracts.

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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 September 26, 2005, these amendments include the addition of
position limits, accountability levels, and reporting levels for four new NOX Emissions
Allowance Futures Contracts: Banked NOX Emissions Allowance, One-Year Forward NOX
Emissions Allowance, Two-Year Forward NOX Emissions Allowance, and Three-Year Forward
NOX Emissions Allowance. Pursuant to Section Sc(c) of the Commodity Exchange Acct (“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


(Underlining in bold represents an addition, and strikethrough in bold a deletion)
Rule 9.26, All Month/Any One Month Position Accountability
Sections (A) through (C) remain unchanged.

(D) Except as provided in Rule 9.27, the any one month/all month position accountability levels for each futures contract
traded on the Exchange are:

Net Futures or Futures-
Equivalent Position

Accountability Levels
|. Futures Contracts Listed for Open Outcry Trading
Light Sweet Crude Oil (also includes WT! Calendar Swap, NYMEX
WTI-Brent Spread Calendar Swap, Crude Oil Average Price Options
and Crude Oil Look-Alike Options) 20,000 contracts
NYMEX Brent Crude Oil (also includes NYMEX WTI-Brent Spread
Calendar Swap and NYMEX Brent Calendar Swap) 20,000 contracts
New York Harbor Unleaded Gasoline (also includes Unleaded Gasoline
Average Price Options and Unleaded Gasoline Look-Alike Options) 7,000 contracts
New York Heating Oil (also includes NY Harbor Calendar Swap, Heating
Oil Average Price Options and Heating Oil Look-Alike Options) 7,000 contracts
Northwest Europe Gasoil 7,000 contracts
Natural Gas (also includes Henry Hub Swap, Henry Hub Natural Gas
Penultimate Swap and Natural Gas Look-Alike Options) 12,000 contracts
Liquefied Propane Gas 1,500 contracts
Palladium 1,000 contracts
Platinum 1,500 contracts
Central Appalachian Coal 5,000 contracts
SOz Emissions Allowance 2,500 contracts
NOX Emissions Allowance 2,500 contracts
Banked NOX Emissions Allowance 2,500 contracts
One-Year Forward NOX Emissions Allowance 2,500 contracts
Two-Year Forward NOX Emissions Allowance 2,500 contracts
Three-Year Forward NOX Emissions Allowance 2,500 contracts

The Position Accountability levels for the PJM Calendar Month LMP Swap,
PJM Calendar Week LMP Swap and the PJM Calendar Day Ahead LMP-
Swap shall be 5,000 contracts in the aggregate.

(Remainder of the rule is unchanged.)

Rule 9.27, Expiration and Current Delivery Month Position Limits or Position Accountability
Section (A) remains unchanged.

(B) The expiration position limits for energy contracts set forth below are effective on the open of trading of the last
three trading days of the futures contract. The expiration position limits shall be calculated on a net futures-
equivalent basis. For purposes of this rule, a Crude Oil e-miNY(sm) contract shall be deemed equivalent to .50 of a
Crude Oil light sweet future cited below. A Natural Gas e-miNY(sm) shall be deemed equivalent to .50 of a Natural
Gas future cited in (x) below.

The expiration position limits for energy futures contracts listed below are:

Net Futures or Futures-
Equivalent Expiration
Futures Contracts Position Limits


|, Futures Contracts Listed for Open Outcry Trading

Light, Sweet Crude Oil (also includes WTI Calendar Swap, NYMEX
WTI-Brent Spread Calendar Swap, Crude Oil Average Price Options,
and WTI Crude Oil Look-Alike Options)

New York Harbor Unleaded Gasoline (also includes NY Harbor
Calendar Swap, Unleaded Gasoline Average Price Options, and
New York Harbor Unleaded Gasoline Look-Alike Options)

New York Heating Oil (also includes NY Harbor Calendar Swap,
Heating Oil Average Price Options, and New York Harbor Heating
Oil Look-Alike Options)

Northwest Europe Gasoil

Natural Gas (also includes Henry Hub Swap, Henry Hub Natural Gas
Penultimate Swap and Natural Gas Look-Alike Option Contracts)
Liquefied Propane Gas

Central Appalachian Coal

SOz Emissions Allowance

NOX Emissions Allowance

Banked NOX Emissions Allowance

One-Year Forward NOX Emissions Allowance

Two-Year Forward NOX Emissions Allowance

Three-Year Forward NOX Emissions Allowance

(Remainder of the rule is unchanged.)

Rule 9.34, Reporting Levels

(A) The quantities fixed for the purposes of filing a report under Rule 9.33 are:

Commodity

Crude Oil Light Sweet

NYMEX Brent Crude Oil

PJM Calendar-Month-LMP Swap (PJM Interconnection, LLC)
PJM Calendar-Week-LMP Swap (PJM Interconnection, LLC)
PJM Calendar Day-Ahead-LMP Swap (PJM Interconnection, LLC)
New York Harbor Unleaded Gasoline

New York Heating Oil

Northwest Europe Gasoil

Liquefied Propane Gas

Natural Gas

Palladium

Platinum

Central Appalachian Coal

SOz Emissions Allowance

NOX Emissions Allowance

Banked NOX Emissions Allowance

One-Year Forward NOX Emissions Allowance

Two-Year Forward NOX Emissions Allowance
Three-Year Forward NOX Emissions Allowance

(Remainder of the rule is unchanged.)

2,000 contracts

1,000 contracts

1,000 contracts
1,000 contracts

1,000 contracts
250 contracts
200 contracts
200 contracts
200 contracts

200 contracts

200 contracts

200 contracts

200 contracts

350 contracts
350 contracts
1 contract

1 contract

1 contract
150 contracts
250 contracts
25 contracts
25 contracts
175 contracts
25 contracts
50 contracts
25 contracts

25 contracts

25 contracts
25 contracts
25 contracts
25 contracts
25 contracts