Notice to Members
Notice No. 237
05/07/2008
Margin Rates Changes for the Seasonal Nitrogen Oxides (NOx) and Sulfur Dioxide (SO2) Based Emission Allowance Futures Contracts
EFFECTIVE DATE:     Friday, May 9, 2008 (close of business)

FUTURES CONTRACTS:
Contract Name
Symbol
SO2 Emissions Allowance Futures Contract
RS
Seasonal NOx Emission Allowance – Current Vintage – Futures
RN
Seasonal NOx Emission Allowance – Vintage 2009 – Futures
YI
Seasonal NOx Emission Allowance – Vintage 2011 – Futures
YN
Seasonal NOx Emission Allowance – Vintage 2012 – Futures
YM
CONTRACT MONTHS: All Months

NOTE: The revised margin rates are in bold
NYMEX Division Outright (Scan) Margin Rates For RS, RN, YI, YN, and YM
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
RS
$5,000
$6,000
$5,500
$6,600
$6,750
$8,100
RN
$2,000
$3,000
$2,200
$3,300
$2,700
$4,050
YI
$800
$600
$880
$660
$1,080
$810
YN
$800
$600
$880
$660
$1,080
$810
YM
$800
$600
$880
$660
$1,080
$810
Should you have any questions or require any further information, please contact exchangeinfo@nymex.com