6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16

Under The Securities Exchange Act of 1934

For the month of September 2007

Commission File Number: 1-13064

NOVA Chemicals Corporation

1000 Seventh Avenue S.W., Calgary, Alberta, Canada, T2P 5L5

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F o Form 40-F x

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T
Rule 101(b)(1) :  o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T
Rule 101(b)(7) :  o

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes o No x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):   82-  N/A.

A copy of the Registrant’s:

(a)Press Release dated September 18, 2007; INEOS NOVA joint venture will acquire rights to Sterling styrene production

is furnished herewith and is incorporated by reference into the following Registration Statements:

Registration Statement on Form S-8  #33-47673

Registration Statement on Form S-8  #333-520

Registration Statement on Form S-8  #333-9076

Registration Statement on Form S-8  #333-9078

Registration Statement on Form S-8  #33-86218

Registration Statement on Form S-8  #33-77308

Registration Statement on Form S-8  #333-11280

Registration Statement on Form S-8  #333-12910

Registration Statement on Form S-8  #333-101793

Registration Statement on Form S-8  #333-109424

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

NOVA Chemicals Corporation

/s/ Ronald E.J. Kemle

Ronald E.J. Kemle

Vice President Legal,

Olefins and Polyolefins

September 19, 2007

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EXHIBITS

Attached hereto is:

99.1 Press Release dated September 18, 2007; INEOS NOVA joint venture will acquire rights to Sterling styrene production

3

EX-99.1

Exhibit 99.1

FOR IMMEDIATE RELEASE September 18, 2007

INEOS NOVA joint venture will acquire rights
 to Sterling styrene production

Pittsburgh, PA – NOVA Chemicals Corporation (NYSE, TSX: NCX) today announced that it has secured exclusive rights to the styrene production from Sterling Chemicals Inc.’s Texas City, Texas, manufacturing facility on behalf of its pending joint venture with INEOS.  The INEOS NOVA joint venture has received U.S. regulatory approval and will be assigned the rights when the joint venture is operational, which is expected to be October 1, 2007.  The $60 million cost of the transaction will be fully funded by the INEOS NOVA joint venture from cash on hand.

“This agreement will allow our joint venture with INEOS to rapidly reduce costs and optimize production,” said Jeffrey M. Lipton, President and Chief Executive Officer of NOVA Chemicals.  “We believe this is a very significant step that will accelerate a return to financial health for the styrenics chain.”

Sterling’s Texas City facility has 1.7 billion pounds of annual styrene production capacity, which represents approximately 11% of North American capacity and 3% of global capacity.

NOVA Chemicals produces plastics and chemicals that are essential to everyday life.  Our employees develop and manufacture materials for customers worldwide that produce consumer, industrial and packaging products. NOVA Chemicals works with a commitment to Responsible Careâto ensure effective health, safety, security and environmental stewardship.  Company shares are traded on the Toronto and New York stock exchanges as NCX.

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NOVA Chemicals media inquiries, please contact:

Greg Wilkinson – Vice President, Public and Government Affairs

Tel: 412.490.4166

E-mail:  wilkinga@novachem.com

NOVA Chemicals Investor Relations inquiries, please contact:

Chuck Magro – Vice President, Investor Relations

Tel: 412.490.5047

E-mail: magroc@novachem.com

Conference Call Information:
NOVA Chemicals will hold a conference call tomorrow with President and Chief Executive Officer Jeffrey M. Lipton for analysts, investors and the media.

Conference Call:		Wednesday, September 19, 2007 10:00 a.m. EDT
Dial-In Number:		(416) 406-6419
Live Web Cast:		Option 1 — The webcast link will be available at www.novachemicals.com —
		Investor Center — IR Calendar — INEOS NOVA JV Update
	or	Option 2 - The webcast can be accessed live at Vcall’s www.investorcalendar.com (ticker symbol NCX)
Audio Replay:		An audio replay will be available at (416) 695-5800 (passcode #3234210) through Wednesday, September 26, 2007.

Forward-Looking Information

The information in this news release contains forward-looking statements, including statements regarding:  the planned assignment of the styrene production from Sterling’s Texas City, Texas manufacturing facility to the INEOS NOVA joint venture; the expectation that the $60 million cost of the transaction will be fully funded by the INEOS NOVA joint venture from cash on hand; the expected date that the INEOS NOVA joint venture will be operational; and NOVA Chemicals’ belief that the agreement with Sterling will allow the joint venture with INEOS to rapidly reduce costs and optimize production and that it is a very significant step that will accelerate a return to financial health for the styrenics chain.  By their nature, forward-looking statements require NOVA Chemicals to make assumptions and are subject to inherent risks and uncertainties. There is significant risk that predictions, forecasts, conclusions and projections will not prove to be accurate, that NOVA Chemicals’ assumptions may not be correct and that actual results may differ materially from such predictions, forecasts, conclusions or projections. Some of the risks that could affect NOVA Chemicals’ future results and could cause results to differ materially from those expressed in the forward-looking statements include:  uncertainties regarding commodity chemicals price levels (which depend, among other things, on supply and demand for these products, capacity utilization and substitution rates between these products and competing products); feedstock availability and prices; operating costs; starting up and operating facilities; the impact of competition; uncertainties associated with the North American, South American, European, and Asian economies and other risks detailed from time-to-time in the publicly filed disclosure documents and securities commissions reports of NOVA Chemicals. NOVA Chemicals’ forward-looking statements are expressly qualified in their entirety by this cautionary statement. In addition, the forward-looking statements are made only as of the date of this news release, and except as required by applicable law, NOVA Chemicals undertakes no obligation to publicly update these forward-looking statements to reflect new information, subsequent events or otherwise.

Responsible Care® is a registered trademark of the Canadian Chemical Producers Association (CCPA) in Canada and is a registered service mark of the American Chemistry Council (ACC) in the United States.