Exhibit 99.3

Re: Consent of Independent Registered Public Accounting Firm

We consent to use of our reports dated February 16, 2005 with respect to the consolidated financial statements of NOVA Chemicals Corporation for the years
ended December 31, 2004, 2003 and 2002, NOVA Chemicals Corporation management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal
control over financial reporting of NOVA Chemicals Corporation, included in the Annual Information Form, filed under cover of the Annual Report (Form 40-F) for 2004 with the
Securities and Exchange Commission.

We
consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-101793) pertaining to the Employee Savings and
Profit Sharing Plan for Canadian Employees, the Director Share Unit Plan, the Deferred Share Unit Plan for Key Employees, the Deferred Share Unit Plan for US Key Employees and the Deferred Share Unit
Plan for Non-Employee Directors of NOVA Chemicals Corporation, and the Employee Savings and Profit Sharing Plan for US Employees, the US Savings and Profit Sharing Restoration Plan and the
Capital Accumulation Plan of NOVA Chemicals Inc. of our reports dated February 16, 2005 with respect to the consolidated financial statements of NOVA Chemicals Corporation, NOVA
Chemicals Corporation management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of NOVA Chemicals
Corporation, included in the Annual Report (Form 40-F) for the year ended December 31, 2004.

We
consent to the incorporation by reference in the Registration Statements (Form S-8 Nos. 33-47673, 333-520,
333-9076 and 333-12910) pertaining to the Employee Incentive Stock Option Plan (1982) of NOVA Chemicals Corporation of our reports dated February 16, 2005 with
respect to the consolidated financial statements of NOVA Chemicals Corporation, NOVA Chemicals Corporation management's assessment of the effectiveness of internal control over financial reporting,
and the effectiveness of internal control over financial reporting of NOVA Chemicals Corporation, included in the Annual Report (Form 40-F) for the year ended
December 31, 2004.

We
consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-9078) pertaining to the Employee Savings and
Profit Sharing Plan for Canadian Employees of NOVA Chemicals Corporation of our reports dated February 16, 2005 with respect to the consolidated financial statements of NOVA Chemicals
Corporation, NOVA Chemicals Corporation management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of
NOVA Chemicals Corporation, included in the Annual Report (Form 40-F) for the year ended December 31, 2004.

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We
consent to the incorporation by reference in the Registration Statement (Form S-8 No. 33-86218) pertaining to the Employee Savings and
Profit Sharing Plan for NOVA Chemicals Inc. (formerly Polysar Incorporated) of our reports dated February 16, 2005 with respect to the consolidated financial statements of NOVA Chemicals
Corporation, NOVA Chemicals Corporation management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of
NOVA Chemicals Corporation, included in the Annual Report (Form 40-F) for the year ended December 31, 2004.

We
consent to the incorporation by reference in the Registration Statement (Form S-8 No. 33-77308) pertaining to the Director Share Purchase
Plan of NOVA Chemicals Corporation of our reports dated February 16, 2005 with respect to the consolidated financial statements of NOVA Chemicals Corporation, NOVA Chemicals Corporation
management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of NOVA Chemicals Corporation, included in
the Annual Report (Form 40-F) for the year ended December 31, 2004.

We
consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-11280) pertaining to the Beaver Valley Hourly
Plan of NOVA Chemicals Corporation of our reports dated February 16, 2005 with respect to the consolidated financial statements of NOVA Chemicals Corporation, NOVA Chemicals Corporation
management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of NOVA Chemicals Corporation, included in
the Annual Report (Form 40-F) for the year ended December 31, 2004.

We
consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-109424) pertaining to the Restricted Stock Unit
Plan of NOVA Chemicals Corporation of our reports dated February 16, 2005 with respect to the consolidated financial statements of NOVA Chemicals Corporation, NOVA Chemicals Corporation
management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of NOVA Chemicals Corporation, included in
the Annual Report (Form 40-F) for the year ended December 31, 2004.

We
consent to the incorporation by reference in the Registration Statement (Form F-9 No. 333-13824) pertaining to the registration of Debt
Securities of NOVA Chemicals Corporation of our reports dated February 16, 2005 with respect to the consolidated financial statements of NOVA Chemicals Corporation, NOVA Chemicals Corporation
management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of NOVA Chemicals Corporation, included in
the Annual Report (Form 40-F) for the year ended December 31, 2004.

|                |  | GRAPHIC              
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|Calgary, Canada |  | Chartered Accountants
|March 1, 2005   |  |                      

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