Notice to Members
Notice No. 349
07/03/2008
Margin Rates Changes for Carbon, Nitrogen Oxides (NOX) and Sulfur Dioxide (SO2) Based Emission Allowance Futures Contracts
Effective Date: Monday, July 7, 2008 (close of business)

Futures Contract:
Seasonal NOx Emission Allowance – Current Vintage – Futures RN
Seasonal NOx Emission Allowance – Vintage 2009 – Futures YI
Seasonal NOx Emission Allowance – Vintage 2010 – Futures YJ
Seasonal NOx Emission Allowance – Vintage 2011 – Futures YN
Seasonal NOx Emission Allowance – Vintage 2012 – Futures YM
Annual NOx Emission Allowance – Vintage 2009 – Futures WW
Annual NOx Emission Allowance – Vintage 2010 – Futures YP
Annual NOx Emission Allowance – Vintage 2011 – Futures YQ
Annual NOx Emission Allowance – Vintage 2012 – Futures YR 
SO2 Emission Allowance Futures Contract RS
European Union Allowance (EUA) Futures Contract RC
Certified Emission Reduction (CER) Futures Contract VA
Contract Months: All Months


NYMEX Clearinghouse Outright (Scan) Margins for Emissions Contracts
 
  All Contracts
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
RN
$1,500
$2,000
$1,650
$2,200
$2,025
$2,700
YR
$3,000
$3,500
$3,300
$3,850
$4,050
$4,725
YQ
$3,500
$4,000
$3,850
$4,400
$4,725
$5,400
YP
$4,500
$5,000
$4,950
$5,500
$6,075
$6,750
WW
$6,000
$3,500
$6,600
$3,850
$8,100
$4,725
YM
$1,200
$1,300
$1,320
$1,430
$1,620
$1,755
YN
$750
$1,000
$825
$1,100
$1,013
$1,350
YJ
$750
$900
$825
$990
$1,013
$1,215
YI
$1,200
$1,300
$1,320
$1,430
$1,620
$1,755
RS
$7,000
$5,000
$7,700
$5,500
$9,450
$6,750
VA
1200
750
1320
825
1620
1013
RC
4000
2000
4400
2200
5400
2700

Should you have any questions or require any further information, please contact exchangeinfo@nymex.com