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|UNITED STATES                                                                              
|-------------------------------------------------------------------------------------------
|SECURITIES AND EXCHANGE COMMISSION                                                         
|Washington, D.C. 20549                                                                     
|                                                                                           
|FORM 40-F                                                                                  
|                                                                                           
|[   ] REGISTRATION STATEMENT
PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 
|OR                                                                                         
|[X] ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|                                                                                           
|For
 the fiscal year ended:December
 31, 2005                                              
|                                                                                           
|CANADIAN NATIONAL RAILWAY COMPANY                                                          
|(Exact name of registrant as specified in its charter)                                     

|Canada                         | 4011                         | E.I. 980018609     
|------------------------------ | ---------------------------- | -------------------
|(Jurisdiction of               | (Primary Standard Industrial | (I.R.S. Employer   
|incorporation or organization) | Classification Code Number)  | Identification No.)

|935 de La Gauchetiere Street West                                                                                        
|-------------------------------------------------------------------------------------------------------------------------
|Montreal, Quebec                                                                                                         
|Canada H3B 2M9                                                                                                           
|(514)399-7091                                                                                                            
|(Address, including zip code, and telephone number including area code, of Registrants principal executive offices)     
|                                                                                                                         
|CT Corporation System                                                                                                    
|111 Eighth Avenue                                                                                                        
|New York, N.Y. 10011                                                                                                     
|(212) 894-8600                                                                                                           
|(Name, address, including zip code, and telephone number, including area code, of agent for service in the United States)
|                                                                                                                         
|Securities
    registered pursuant to Section 12(b) of the Act:                                                          

|Title of each class | Name of each exchange on which registered
|------------------- | -----------------------------------------
|Common shares       | New York Stock Exchange                  
|                    | Toronto Stock Exchange                   

Securities registered pursuant to Section 12(g) of the Act:NoneSecurities for which there is a reporting obligation pursuant to Section 15(d) of the Act:Debentures and Notes (Debt Securities)
of Registrant

For annual reports, indicate by check mark the information filed with this Form:

[X] Annual information
    form
      
      [  ] Audited annual financial statements


Indicate the number of outstanding shares of each of the issuers classes of capital or common stock as of the close of the period covered by the annual report:At December 31,
2005, 268,369,966 common shares were issued and outstanding (this number does
not reflect the 2 for 1 stock split effective February 28, 2006).

Indicate by check mark whether the Registrant by filing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the
Securities Exchange Act of 1934 (the Exchange Act). If Yes is marked, indicate the file number assigned to the Registrant in connection with such Rule.Yes  [  ]      No[X]

Indicate by check mark
whether the Registrant (1) has filed all reports required to be filed by Section
13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter
period that the Registrant was required to file such reports) and (2) has been
subject to such filing requirements for the past 90 days.Yes [X]      No[   ]

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CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

Canadian National Railway Companys President and Chief Executive Officer (the CEO) and its Executive Vice-President and Chief Financial Officer
(the "CFO"), after evaluating the effectiveness of Canadian National Railway Companys "disclosure controls and procedures" (as defined in Exchange Act Rules 13a-15(e) or 15d-15(e)) as of December 31, 2005 (the Evaluation Date),
have concluded that as of the Evaluation Date, Canadian National Railway Companys disclosure controls and procedures were adequate and effective to ensure that material information relating to Canadian National Railway Company and its
consolidated subsidiaries would have been made known to them by others within those entities.

Changes in Internal Control Over Financial Reporting

During the year ended December 31, 2005, there was no change in the Canadian National Railway Companys internal control over financial reporting that has
materially affected, or is reasonably likely to materially affect, Canadian National Railway Companys internal control over financial reporting, except that in January 2005, CN implemented its SAP enterprise system on the former territory of
the railroads and related holdings of Great Lakes Transportation LLC (GLT) and in the second quarter of 2005 the Company completed the integration of GLT and BC Rail Partnership and the former BC Rail Ltd. into its SAP and other
enterprise systems.

AUDIT COMMITTEE FINANCIAL EXPERT

The Registrants board of directors has determined that it has several audit committee financial experts serving on its Audit Committee. Mr. Hugh Bolton has
been determined to be an audit committee financial expert and is independent, as that term is defined by the New York Stock Exchanges listing standards applicable to U.S. Companies. The SEC has indicated that the designation or identification
of Mr. Bolton as an audit committee financial expert does not deem him an expert for any purpose, impose any duties, obligations or liability on Mr. Bolton that are greater than those imposed on members of the audit committee and board
of directors who do not carry this designation or identification, or affect the duties, obligations or liability of any other member of the audit committee or board of directors.

CODE OF ETHICS

The Registrant has adopted a code of ethics (the Code of Business Conduct) that applies to all employees and officers, including its principal executive officer, principal financial
officer and principal accounting officer. The Code of Business Conduct is available at the Registrants Internet website,www.cn.caunder the caption Corporate Governance. Any amendments to the Code of Business Conduct will be posted at the Registrants Internet website at the address listed
above.

PRINCIPAL ACCOUNTANT FEES AND SERVICES

KPMG LLP has served as the Companys auditors since 1992. In 2005 and 2004, the fees for audit, audit-related, tax and other services provided to the Company by
KPMG LLP were the following:

|                           
|---------------------------
|Year
    ended December 31,
|                           
|Audit fees                 
|Audit-related fees         
|Tax fees                   
|                           
|Total                      
|                           

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Pursuant to the terms of its charter, the Audit Committee of CN approves all audit and audit-related services, audit engagement fees and terms and all non-audit
engagements with the independent auditor. The Audit Committee pre-approved 100% of the services performed by our independent auditors for audit-related and tax fees for the year ended December 31, 2005 that were required to be
pre-approved.

A discussion of the nature of the services provided under each category is provided below.

Audit fees

Consists of fees incurred for professional services rendered by the auditors in relation to the audit of the Companys consolidated annual financial statements, those of its subsidiaries and
the Companys pension plan financial statements.

Audit-related fees

Audit-related fees were incurred for attestation services in connection with reports required by statute or regulation and due diligence and other services, including comfort letters, in
connection with the issuance of securities. In each of 2005 and 2004, these amounts included $275,000, which were incurred for consultations with respect to the Sarbanes-Oxley Act, Section 404 Report on Internal Controls.

Tax fees

Consists of fees incurred for consultations on cross-border tax implications for employees and tax compliance.

OFF BALANCE SHEET ARRANGEMENTS

Accounts receivable securitization program

The Company has an accounts receivable securitization program, expiring in June 2006, under which it may sell, on a revolving basis, eligible freight trade and other receivables outstanding at
any point in time, to an unrelated trust. The Company has a contingent residual interest of approximately 10% of receivables sold, which is recorded in Other current assets.

In February 2005, the Company amended the agreement to increase the maximum amount it may sell from CAD $450 million to CAD $500 million and modified certain
reporting requirements.

The Company is subject to customary reporting requirements for which failure to perform could result in termination of the program. In addition, the trust is subject
to customary credit rating requirements, which if not met, could also result in termination of the program. The Company monitors these reporting and credit rating requirements for any trends, events or conditions that could cause such
termination.

The accounts receivable securitization program provides the Company with readily available short-term financing for general corporate use. In the event the program
is terminated before its scheduled maturity, the Company expects to meet its future payment obligations through its various sources of financing, including its revolving credit facility and commercial paper program, and/or access to capital
markets.

At December 31, 2005, pursuant to the agreement, CAD $489 million had been sold compared to CAD $445 million at December 31, 2004.

Guarantees and indemnifications

In the normal course of business, the Company, including certain of its subsidiaries, enters into agreements that may involve providing certain guarantees or indemnifications to third parties and
others, which may extend beyond the

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term of the agreement. These include, but are not limited to, residual value guarantees on operating leases, standby letters of credit and surety and other bonds, and indemnifications that are
customary for the type of transaction or for the railway business.

The Company is required to recognize a liability for the fair value of the obligation undertaken in issuing certain guarantees on the date the guarantee is issued or
modified. Where the Company expects to make a payment in respect of a guarantee, a liability will be recognized to the extent that one has not yet been recognized.

The nature of these guarantees or indemnifications, the maximum potential amount of future payments, the carrying amount of the liability, if any, and the nature of
any recourse provisions are disclosed in Note 18  Major commitments and contingencies, to the Companys Annual Consolidated Financial Statements.

TABULAR DISCLOSURE OF CONTRACTUAL OBLIGATIONS

In the normal course of business, the Company incurs contractual obligations. The following table sets forth the Companys contractual obligations in CAD $ for the following items as at
December 31, 2005:

|In
    millions                          |  |   | Total  |  |   | 2006  |  |   | 2007 |  |   | 2008 |  |   | 2009 |  |   | 2010 |  | 2011&
thereafter
|---------------------------------------- |  | - | ------ |  | - | ----- |  | - | ---- |  | - | ---- |  | - | ---- |  | - | ---- |  | ----------------
|                                         |  |   |        |  |   |       |  |   |      |  |   |      |  |   |      |  |   |      |  |                 
|Long-term debt obligations (a)           |  | $ | 4,214  |  | $ | 296   |  | $ | 58   |  | $ | 203  |  | $ | 351  |  | $ | 444  |  | $               
|Interest on long-term debt obligations   |  |   | 4,399  |  |   | 253   |  |   | 234  |  |   | 224  |  |   | 217  |  |   | 188  |  |                 
|Capital lease obligations (b)            |  |   | 1,231  |  |   | 159   |  |   | 154  |  |   | 71   |  |   | 113  |  |   | 54   |  |                 
|Operating lease obligations              |  |   | 1,058  |  |   | 238   |  |   | 196  |  |   | 165  |  |   | 136  |  |   | 103  |  |                 
|Purchase obligations (c)                 |  |   | 596    |  |   | 446   |  |   | 54   |  |   | 49   |  |   | 29   |  |   | 18   |  |                 
|Other long-term liabilities reflected on |  |   |        |  |   |       |  |   |      |  |   |      |  |   |      |  |   |      |  |                 
|the balance sheet (d)                    |  |   | 1,083  |  |   | 103   |  |   | 72   |  |   | 59   |  |   | 51   |  |   | 44   |  |                 
|                                         |  |   |        |  |   |       |  |   |      |  |   |      |  |   |      |  |   |      |  |                 
|Total obligations                        |  | $ | 12,581 |  | $ | 1,495 |  | $ | 768  |  | $ | 771  |  | $ | 897  |  | $ | 851  |  | $               
|                                         |  |   |        |  |   |       |  |   |      |  |   |      |  |   |      |  |   |      |  |                 

|(a) | Presented net of unamortized discounts, of which $836 million relates to non-interest bearing notes due in 2094 assumed as part of the BC Rail acquisition and excludes capital lease
obligations of $1,231 million which are included in Capital lease obligations.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   
|(b) | Includes $360 million
of imputed interest on capital leases at rates ranging from approximately 3.00%
to13.13%.                                                                                                                                                       
|    |                                                                                                                                                                                                                                                                       
|(c) | Includes commitments
      for railroad ties, rail, freight cars, locomotives and other equipment
    and outstanding information technology service contracts.                                                                                                       
|    |                                                                                                                                                                                                                                                                       
|(d) | Includes expected
      payments for workers compensation, workforce reductions, post-retirement
      benefits and environmental liabilities that have been classified as contractual
    settlement agreements.                                                    

For 2006 and the foreseeable future, the Company expects cash flow from operations and from its various sources of financing to be sufficient to meet its debt repayments and future obligations,
and to fund anticipated capital expenditures.

IDENTIFICATION OF THE AUDIT COMMITTEE

The Registrants Audit Committee is composed of the following directors: Robert Pace (Chair), Michael R. Armellino, A. Charles Baillie, Hugh J. Bolton, Purdy
Crawford and Denis Losier.

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CORPORATE GOVERNANCE PRACTICES

The Registrants board of directors has also reviewed the Registrants corporate governance practices in response to the U.S. Sarbanes-Oxley Act of 2002,
applicable rules of the U.S. Securities and Exchange Commission, as well as the NYSE Corporate Governance Standards (the NYSE Standards). The board of directors will continue to review its corporate governance practices regularly in
response to the evolving standards. Except as disclosed on our website, the Registrants corporate governance practices do not differ significantly from that followed by U.S. domestic companies under the NYSE Standards. A discussion of
differences is available at the Registrants Internet website,www.cn.caunder
the caption Corporate Governance.

UNDERTAKING

Registrant undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly,
when requested to do so by the Commission staff, information relating to the securities in relation to which the obligation to file an annual report on Form 40-F arises.

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CANADIANNATIONALRAILWAYCOMPANY







2005

ANNUAL INFORMATION FORM









March 21,2006

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TABLE OF CONTENTS

|Item 1     | Corporate Structure                 | 2                                                              
|---------- | ----------------------------------- | ---------------------------------------------------------------
|           | 1.1                                 | Incorporation of the Issuer                                    
|           | 1.2                                 | Subsidiaries                                                   
|Item 2     | General Development of the Business | 3                                                              
|           | 2.1                                 | Overview                                                       
|           | 2.2                                 | General Development of the Business During the Last Three Years
|Item 3     | Description of the Business         | 6                                                              
|           | 3.1                                 | Corporate Organization                                         
|           | 3.2                                 | Commodity Groups                                               
|           | 3.3                                 | Labor                                                          
|           | 3.4                                 | Social policies                                                
|           | 3.5                                 | Competition                                                    
|           | 3.6                                 | Regulation                                                     
|           | 3.7                                 | Environmental Matters                                          
|           | 3.8                                 | Legal Proceedings                                              
|           | 3.9                                 | Risk Factors                                                   
|Item 4     | Dividends                           | 22                                                             
|Item 5     | Description of Capital Structure    | 22                                                             
|           | 5.1                                 | General Description of Capital Structure                       
|           | 5.2                                 | Share Ownership Constraints                                    
|           | 5.3                                 | Ratings of Debt Securities                                     
|Item 6     | Transfer agent and registrar        | 24                                                             
|Item 7     | Market for Securities               | 25                                                             
|           | 7.1                                 | Trading Price and Volume                                       
|           | 7.2                                 | Prior Sales                                                    
|Item 8     | Directors and Executive Officers    | 25                                                             
|           | 8.1                                 | Directors                                                      
|           | 8.2                                 | Audit committee disclosure                                     
|           | 8.3                                 | Executive Officers                                             
|           | 8.4                                 | Cease Trade Orders, Bankruptcies, Penalties or Sanctions       
|Item 9     | Interest of experts                 | 28                                                             
|Item 10    | Additional Information              | 28                                                             
|           | 10.1                                | Additional Information                                         
|           | 10.2                                | Factors for Forward-Looking Information                        
|           |                                     |                                                                
|           |                                     |                                                                
|Schedule A |                                     |                                                                

i

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ITEM 1CORPORATE STRUCTURE

1.1Incorporation of the Issuer

Canadian National Railway Company (CN or the Company) was incorporated in 1922 by special act of the Parliament of Canada. CNs continuance under theCanada
Business Corporations Actwas authorized by theCN Commercialization Actand was effected by Certificate of Continuance dated August 24, 1995. On
November 9, 1995, CN filed Articles of Amendment in order to subdivide its outstanding Common Shares. As of November 28, 1995, CN ceased to be a Crown corporation. On April 19, 2002, CN filed Articles of Amendment in order to provide that
shareholder meetings may be held at certain specified places in the United States.

The Companys registered and head office is located at 935 de La Gauchetière Street West, Montreal, Quebec, H3B 2M9, Canada, and its telephone number is (514) 399-5430.

All references in this Annual Information Form (AIF) to dollars or $ are to Canadian dollars and all financial information reflected herein is determined on the basis of, and prepared
in accordance with United States generally accepted accounting principles (U.S. GAAP), unless otherwise indicated.

All references in this AIF to share prices, share volumes and per share measures are adjusted to reflect the two-for-one stock split effective February 28, 2006, unless otherwise indicated.

The information in this AIF includes the railroads and related holdings of Great Lakes Transportation LLC (GLT) as of May 10, 2004 and BC Rail Partnership and the former BC Rail Ltd. (collectively BC
Rail) as of July 14, 2004.

This AIF contains or makes reference to non-GAAP measures that do not have any standardized meaning prescribed by GAAP and are therefore not necessarily comparable to similar measures presented by other companies and as such,
should not be considered in isolation. Management believes that non-GAAP measures such as adjusted net income and the resulting adjusted performance measures for such items as operating income, operating ratio and per share data are useful measures
of performance that can facilitate period-to-period comparisons as they exclude items that do not arise as part of the normal day-to-day operations or that could potentially distort the analysis of trends in business performance. The exclusion of
specified items in the adjusted measures contained herein does not imply that they are necessarily non-recurring. Management also believes free cash flow to be a useful measure of performance as it demonstrates the Companys ability to generate
cash after the payment of capital expenditures and dividends. Schedule A attached to this AIF provides a reconciliation of these non-GAAP measures to comparable U.S. GAAP measures.

1.2Subsidiaries

CNs principal subsidiaries as of December 31, 2005, all of which are wholly owned (directly or indirectly), and their jurisdiction of incorporation, are indicated below:

|Name                                                      | Jurisdiction of
|--------------------------------------------------------- | ---------------
|                                                          | incorporation  
|                                                          |                
|Grand Trunk Corporation                                   | Delaware       
|Grand Trunk Western Railroad Incorporated (GTW)         | Delaware       
|Illinois Central Corporation (IC or Illinois Central) | Delaware       
|Illinois Central Railroad Company (ICRR)                | Illinois       
|Wisconsin Central Transportation Corporation (WC)       | Delaware       
|Wisconsin Central Limited                                 | Illinois       

2

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The financial statements of each of the above principal subsidiaries are consolidated within CNs financial statements.

ITEM 2GENERAL DEVELOPMENT OF THE BUSINESS

2.1Overview

As of December 31, 2005, CN operated approximately 12,900 route miles in eight Canadian provinces and 6,300 route miles in sixteen U.S. states totaling approximately 19,200 route miles with principal routes to every major
metropolitan area in Canada and to the major U.S. rail hubs of Buffalo, Detroit, Duluth/Superior, Minneapolis/St.Paul, Chicago, St. Louis, Jackson, Memphis, New Orleans, Baton
Rouge and Mobile. The Company spans Canada and mid-America, serving all five major Canadian ports on the Atlantic and Pacific oceans and the Great Lakes as well as New Orleans on the Gulf of Mexico.

The Companys freight revenues derive from the movement of a diversified and balanced portfolio of goods. In 2005, the largest commodity group accounted for approximately 24% of revenues. The sources of revenue also
reflect a balanced mix of destinations. In 2005, 22% of revenues came from U.S. domestic traffic, 33% from transborder traffic, 24% from Canadian domestic traffic, and 21% from overseas traffic.

CN originated approximately 87% of traffic moving along its network in 2005. This allowed the Company both to capitalize on service advantages and to build on opportunities to efficiently use assets.

2.2General Development of the Business During the Last Three Years

CNs financial performance, when measured on the basis of profit margin, balance sheet strength and free cash flow, has been amongst the best in the industry since 1999. To maintain that position, CN has focused on
strategies to grow the business profitably.

Growth

CNs revenues have increased from a level of $3.9 billion in 1995, the year in which it was privatized, to $5.4 billion in 2000 and $7.2 billion in 2005. This has resulted from a combination of organic growth
and well-executed acquisitions.

Revenues for 2005 were up 11% compared to 2004, mainly due to freight rate increases, an important part of which was due to a higher fuel surcharge. This improvement also reflected solid growth in the base business and the
full-year effect of the two acquisitions made during 2004, namely GLT in the United States in May and BC Rail in Canada in July. Excluding the conversion impact of the stronger Canadian dollar  approximately $260 million - on U.S.
dollar-denominated revenues, CNs revenues were up 15% compared to 2004.

CNs strategy of extending reach and providing service to North American customers was launched when it took control of IC in 1999. The acquisition of WC in 2001 was another key step in increasing CNs ability to
offer seamless service in the North American market. With their integration into CN now completed, the GLT and BC Rail properties allow CN to extend its reach even further.

The acquisition of GLT strengthens CNs position in the steel industry in the United States, in addition to driving new efficiencies in the network by giving the Company ownership of an essential link in the important
Chicago-Winnipeg corridor.  The acquisition of BC Rail extends CNs business reach in western Canada and opens up growth opportunities in the Companys already solid forest products franchise.

3

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CNs revenue performance in 2005 continued to illustrate the Companys ability to leverage its acquisitions. It also reflected the capacity to tap growth opportunities across several business groups, including
intermodal, coal and key merchandise segments, as well as the ability to improve revenue yield.

CN plans to continue to grow the business in the future.  The construction of a new container terminal in Prince Rupert, British Columbia was recently announced. The facility, scheduled to open during the second half of 2007,
will allow CN to leverage the increasing container trade between Asia and North America, to develop export opportunities across a wide range of resource and industrial commodities, and to expand its role as a major transportation gateway to and from
North America.  In the bulk group, western Canadian growth prospects are enhanced by continued coal mine expansion. In merchandise, the Company sees growth potential for a number of commodities, particularly wood products and metals.  The
Companys business prospects are based on the continuation of positive economic trends in North America and in Asia.

Service

CN is committed to creating value for both its customers and shareholders. The purpose of CNs service plan, which was originally introduced in 1998 as an integral part of its scheduled railroading concept in North
America, is to put the tools in place to deliver the quality and reliability of service that customers require. Under this operating plan, CN runs regularly scheduled trains that leave at predetermined times. Each car or container has a specific
trip plan that fits into the design of the train schedule. CN believes its success in growing traffic and improving yield would not be possible without the quality of service afforded by precise execution of the service plan, or what CN calls
Precision Railroading.

The largest portion of CNs capital expenditures is focused on basic rail infrastructure to maintain the quality and enhance the fluidity of the network, and to provide safe, reliable service to customers across the U.S.
and Canada. In the last three years, CN has spent in excess of $650 million per year in this respect. CNs investments to expand capacity through siding extensions and improved signaling have also been substantial during the last several
years. CN is maintaining this effort, with a focus on standardizing the length and spacing of extended sidings across the network. This is part of CNs strategy to grow the business with quality service at low incremental cost.

Quality service also equates to providing quality equipment, including both cars and locomotives. The Company acquired 113 new high-horsepower locomotive units in the last four years. Targeted investments have been made to
improve the car fleet, including the purchase of approximately 1,950 centerbeams for lumber products and 1,150 modern boxcars for paper and other products since 2003. In 2005, CN began the process of developing a more versatile car fleet, reducing
the number of specialized cars in favor of more generic ones that are able to serve a wider range of customers. CN intends to continue its acquisitions of cars and locomotives in order to offer the quality and equipment characteristics that
customers need in the marketplace.

In 2005, CN continued the implementation of the routing protocol initiative with its U.S. interline partners. The routing protocol agreements establish a structured plan to direct rail traffic flows through the most efficient
interchange locations. This improves transit times and asset utilization. Traffic is expedited by reducing the number of handlings, shortening routes and avoiding the most congested gateways. Routing protocols also facilitate instant Web-based
interline pricing, a feature that enhances rails competitiveness with trucking.

The ultimate driver of service quality resides in the interaction with customers, and in particular in the ability to understand customer needs and help resolve their issues proactively. One of CNs major efforts in that
regard has been the creation of a Service department within the Sales and Marketing groups in 2004 and its full rollout in 2005. The Service department is designed to provide a new level of responsiveness to customer needs, helping them to quickly
identify and resolve issues beyond normal shipment tracking and transactional questions. CN service professionals have the tools and authority to coordinate solutions across the CN system, working with our people in the field and customers to
identify new avenues for faster and more consistent problem resolution.

4

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Productivity

CNs focus on profitable growth implies a relentless pursuit of efficiency and productivity improvements in all aspects of the business and in all corners of the organization. In an asset-intensive business, one of
CNs top priorities is to constantly improve asset utilization in our network, yards, and terminals. The service plan plays a central role in the pursuit of better asset utilization. It allows CN to simultaneously improve the quality of service
and the productivity of assets.

The reliability of operations that is now achieved at CN has opened a new perspective on the intermodal business. Generally characterized by highly uneven traffic flows on different days of the week, intermodal traffic
traditionally generates significant asset requirements for railways to meet peak demand. With the ability to deliver as promised each and every day, a high level of reliability is allowing CN to smooth out traffic, improve the management of capacity
on a daily basis, and grow intermodal margins through its Intermodal Excellence (IMX) program since 2003. In early 2005, the Company began applying the additional principles learned from IMX to its carload business, launching Carload
Excellence (CX), in order to improve asset utilization and capacity in the merchandise sector.

The pursuit of efficiency and productivity has been enhanced as a result of new and innovative agreements with several labor unions representing running trades employeeslocomotive engineers, conductors and
brakemenin the U.S. The agreements change the method of pay to hourly wages, giving CN the flexibility to run trains based on the needs of the customer and not on antiquated mileage rules, in return for a predictable employee work schedule,
improved job security and higher pay. This initiative was first implemented with the locomotive engineers on the former WC property in April of 2002, and since expanded to the other running trades employees on the territories of the former WC, IC,
GTW and Duluth, Winnipeg and Pacific (DWP).

Productivity improvements are also being pursued through the implementation of the latest information technology. Over the past several years, CN has implemented an SAP enterprise system, a powerful integrated software
application. During 2003, CN completed the implementation on the former WC. The Company has applied the same careful step-by-step systems integration on the former GLT and BC Rail properties, which were cut over to SAP in January 2005 and April
2005, respectively. With better information tools, new savings opportunities can be identified across all functions of the railroad. For example, the availability and dissemination of reliable information on train operations allows engineering
forces to work more productively as a result of improved work block planning. Precise information linking the sources and the costs of rolling stock repairs also increases the quality of cost control in the mechanical function.

The full extent of CNs productivity pursuit can be measured in a number of ways. For example, by focusing on the utilization of cars and continuous process improvements, CN has increased average car velocity, measured
in terms of miles travelled per day from origin to destination by close to 9% in 2005 (excluding GLT and BC Rail).  The optimization of horsepower for each train and the availability of modern and highly efficient units have lead to a gain of 5% in
locomotive productivity, as measured by gross ton miles (GTMs) per available horsepower. The overall productivity of labour, in terms of GTMs per employee, improved 4% (including BC Rail and GLT).

5

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Sustainable Financial Health

Solid revenue growth, combined with tight cost control and continued productivity gains, have lead to improved financial performance. During 2005, the improvement was substantial. With an industry-leading operating ratio of
63.8%, net income reached $1,556 million, up 24% compared to 2004. Using adjusted net income in 2002 and 2003 for purposes of comparability, CNs net income increased by an average of 14% a year over the last three years1.

CN continues to be an industry leader in free cash flow generation. In 2005, CN produced $1,301 million of free cash flow2, reaching 18% of
revenues, compared to $513 million or approximately 8% of revenues in 2002. The improvement in free cash flow was generated while CN increased its dividend to shareholders for the ninth consecutive year. An additional increase in the dividend
was announced in January 2006.

The Company is constantly seeking ways to improve cash flow through increased earnings, better asset utilization, tighter control of working capital, and the monetization of surplus assets.  In 2004, CANAC Inc. and Beltpack
Corporation, subsidiaries of CN involved in railroad operations consulting services and remote control locomotive technology, respectively, were sold for net proceeds of $52 million. Also in 2004, the shareholders of English Welsh & Scottish
Railway Holdings Limited (EWS), a company which provides rail freight services in Great Britain and operates freight trains through the English channel tunnel, approved a plan to reduce the EWS share capital by offering shareholders the
ability to cancel a portion of their EWS shares. CN elected to have the maximum allowable number of shares cancelled under the plan, thereby reducing its ownership interest in EWS to approximately 31% on a fully diluted basis. CN received £57.7
million ($141 million) in cash and an 8% note receivable due in 2009 of £23.9 million ($58 million) from EWS. In 2005, EWS fully redeemed the Companys note receivable for £26 million ($61 million).

Given strong free cash flow and a solid balance sheet during the last several years, CNs board of directors (the Board of Directors or the Board) has authorized three share repurchase programs
since the fall of 2002. The first was launched in October 2002 and was completed by October 2003, with 39 million common shares repurchased at a total cost of $859 million at an average price per share of $22.02. The second began in November
2004 and was completed in June 2005, with 28 million common shares repurchased for $1,021 million at an average price per share of $36.47. The Board authorized a new program beginning in July 2005, allowing for the repurchase of up to 32
million common shares over a one-year period. As at December 31, 2005, a total of 16 million shares had been repurchased for $670 million at an average price of $41.90 per share.

ITEM 3DESCRIPTION OF THE BUSINESS

3.1Corporate Organization

The Company manages its rail operations in Canada and the United States as one business segment. Financial information reported at this level, such as revenues, operating income, operating ratio and cash flow from operations,
is used by the Companys corporate management in evaluating financial and operational performance and allocating resources across CNs network.  The Companys strategic initiatives, which drive its operational direction, are developed
and managed centrally by corporate management and are communicated to its regional activity centers (the Western Canada, Eastern Canada and U.S. regions), whose role is to manage the day-to-day service requirements of their territory, service small
customer accounts within their region, control direct costs incurred locally, and execute the corporate strategy and operating plan established by corporate management.

|                                                                                                                                                                                            
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|1See
          Schedule A of the AIF for a reconciliation of this non-GAAP measure
          for 2002 and 2003.2See Schedule A of the AIF for a reconciliation of this non-GAAP
    measure.

6

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See note 16  Segmented information, to the Companys 2005 Annual Consolidated Financial Statements for additional information on the Companys corporate organization, as well as selected financial
information by geographic area.

The regions, as of December 31, 2005, can be described as follows:

|  | Western Canada Region                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
| | The Western Canada Region, based in Edmonton,
Alberta, extends from Thunder Bay and Armstrong in
northwestern Ontario to the Pacific Ocean. The
Region operates approximately 8,400 route miles of track
including approximately 1,400 route miles of
track from the purchase of BC Rail. The Western Canada
Region serves the Port of Vancouver, the inland
port of Thunder Bay and is the exclusive rail link to Prince
Rupert, the closest North American port to Northeast
Asia. CNs Western Canada Region carries bulk
export commodities such as grain and fertilizers,
coal, potash and sulfur, as well as forest products,
petroleum and chemicals, and intermodal destined
for international and domestic markets.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|  | Eastern Canada Region                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
| | The Eastern Canada Region, based in Toronto, Ontario, extends east from Armstrong in northwestern
Ontario to the Atlantic Ocean, and from Chibougamau, Quebec south to the Ontario-Michigan border. The
Region operates approximately 4,500 route miles of track and serves the ports of Montreal, Saint John, New
Brunswick and Halifax. The principal commodities carried by the Region are automotive, intermodal, ferrous
and non-ferrous metals, petroleum and chemicals and forest products.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|  | United States Region                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
| | The United States Region, based in Homewood, Illinois, extends from International Falls just south of Fort
Francis, Ontario, to Chicago, Illinois then on to New Orleans, Louisiana, on the Gulf of Mexico, and from
Minneapolis and St. Paul, Minnesota to Sault Ste. Marie, Michigan, and from Sioux City, Iowa and Omaha,
Nebraska heading east to Port Huron and Detroit, Michigan. The United States operates approximately
6,300 route miles of track including 356 route miles of track from the purchase of GLT. The United States
Region serves the Gulf ports of Mobile, Alabama and New Orleans, Louisiana, and the river ports of
Memphis, Tennessee and Baton Rouge, Louisiana. Major commodities transported include automotive, iron
and steel, petroleum and chemicals, forest products, coal, fertilizers and grain. The Region interchanges
traffic with Kansas City Southern Railroad (KCS) at Jackson, Mississippi, as part of the marketing alliance
that provides CN customers access to Mexico and the U.S. Southwest. With connections in Chicago and
other locations to all North American Class I carriers, the United States Region serves as a critical link for
the Companys North American strategy.

7

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The following table sets forth revenue and carload information by commodity group for each of the years in the three-year period ended December 31, 2005:

|                        |  | Revenues(1)                        |  | Carloads(1)    |  | Freight
                         Revenue per Carload(1)(3)
|----------------------- |  | ---------------------------------- |  | -------------- |  | ----------------------------------------------------------
|                        |  |                                    |  |                |  |                                                           
|                        |  | 2005                               |  | 2004           |  | 2003                                                      
|                        |  |                                    |  |                |  |                                                           
|                        |  | (In million
                    $) |  | (In thousands) |  |                                                           
|                        |  |                                    |  |                |  |                                                           
|Petroleum and chemicals |  | 1,096                              |  | 1,059          |  | 1,013                                                     
|Metals and minerals     |  | 837                                |  | 714            |  | 527                                                       
|Forest products         |  | 1,738                              |  | 1,505          |  | 1,320                                                     
|Coal                    |  | 331                                |  | 284            |  | 261                                                       
|Grain and fertilizers   |  | 1,119                              |  | 1,063          |  | 947                                                       
|Intermodal              |  | 1,270                              |  | 1,117          |  | 1,101                                                     
|Automotive              |  | 514                                |  | 510            |  | 525                                                       
|Other(2)                |  | 335                                |  | 296            |  | 190                                                       
|                        |  |                                    |  |                |  |                                                           
|Total                   |  | 7,240                              |  | 6,548          |  | 5,884                                                     

|(1) | Prior years data has been reclassified to conform to the 2005 presentation and the statistical data has been restated to reflect changes to estimated data previously reported.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(2) | Principally non-freight revenue derived from third parties.                                                                                                                     
|(3) | Total Freight Revenue per Carload is calculated by subtracting Other Revenues from Total Revenues and dividing the result by the Total Carloads.                                

The following describes the various groups of commodities transported by CN:

The Petroleum and Chemicals commodity group includes a wide range of commodities which can be divided into the following categories: chemicals, representing 40% of the commodity groups revenues in 2005, and
plastics, sulfur, petroleum and gas products, representing 60%.

Although offshore markets have been growing strongly, the primary markets are still within North America, and the performance is closely correlated with the North American economy. The consolidation and rationalization
of industrial production facilities have resulted in increased rail-based business opportunities in both the Canadian and U.S. markets.

This group of commodities is a strong originator of traffic. CN has access to northern Alberta, a major center for natural gas, feedstock and world scale petrochemicals and plastics complex derivatives, as well as the
Oil Sands development.

The Company also enjoys access to the low-cost Louisiana petrochemical corridor between New Orleans and Baton Rouge and a large number of eastern Canadian regional plants. CN provides a highly efficient route to the
large consuming areas in the Midwest and Northeast of the United States.

8

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The Metals and Minerals commodity group comprises metals, representing 53% of the commodity groups revenues in 2005, equipment and parts, and construction materials, together representing 24%, and iron ore,
representing 23%. CNs unique rail access to major mines, ports and smelters throughout North America makes it a transportation leader of copper, lead, zinc concentrates, iron ore, refined metals and aluminum. Copper and zinc commodities, such
as ores, concentrates and anodes are produced in northern Quebec, Ontario and Manitoba. The commodities are shipped to refineries for further processing and then shipped to manufacturers of finished goods.

Major producers of steel, primarily in Ontario and the U.S. Midwest, ship their products throughout North America and Mexico. Such products are mainly used in the automotive and construction industries.

Construction materials are mainly aggregates (stone and sand) and cement. CN enjoys access to major cement producers and aggregate mines in Canada as well as in the U.S.

CNs Metals and Minerals traffic is sensitive to fluctuations in the economy. CN serves a variety of major industries along its network and has the most direct route to the Ports of New Orleans and Mobile from the
Midwest, as well as an efficient route into Mexico via its marketing alliance with Kansas City Southern Railroad.

CN is the largest rail carrier of forest products in North America. CN has superior rail access to the western and eastern Canadian fiber-producing regions, which are among the largest fiber source areas in North
America. In the U.S., the Company is strategically located to serve both the Midwest and southern U.S. corridors with interline capabilities to other Class I railroads.  This geographic position, coupled with CN transload facilities, allows
CNs customers to take full advantage of the rail offering and extend their reach to new markets. CN serves customers that are leaders in all areas of forest products.

The Forest Products commodity group consists of four major commodity segments: lumber accounted for 33% of the commodity groups revenues in 2005, fibers 39%, paper 16%, and panels 12%.

The key drivers for newsprint are advertising lineage and overall economic conditions, primarily in the U.S.  For Fibers the consumption of paper worldwide is the key driver. Housing starts and renovation activities in
the United States are the key drivers for the lumber and panels traffic.

The ability to provide consistent, reliable service gives railroads the opportunity to convert traffic from truck to rail. Although demand for forest products tends to be cyclical, CN believes that its geographical
advantages and product diversity tend to reduce the impact of market fluctuations. CNs scheduled service offering and guaranteed car order program have also been significant contributors to growing CN traffic.

Of the coal traffic moved by CN in 2005, 34% originated in Canada and 66% in the United States, with coal providing 83% of revenues and petroleum coke 17%.

9

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CNs coal business consists primarily of thermal grades of bituminous coal. Canadian thermal coal is delivered to power utilities primarily in eastern Canada. In the United States, shipments of U.S. thermal coal
are transported from mines served in southern Illinois, or from western U.S. mines via interchange with other railroads, to major utilities in the Midwest and southeast United States. CN has been able to aggressively market seamless service options
through connections with western rail carriers. This strategy has allowed CN to stabilize volumes and target growth areas.

The coal business also includes Canadian metallurgical coal, which is generally exported to steel makers in Japan and other Asian markets from three coal terminals in British Columbia. The strong global market for
metallurgical coal facilitated the opening of three mines along the CN network in late 2004. The improvement in this market is expected to continue as strong Asian demand for metallurgical coal is driving increased Canadian production.

This commodity group depends primarily on crops grown and fertilizers processed in western Canada and the U.S. Midwest. Of the grain traffic moved by CN in 2005, 70% originated in Canada, almost all in the west, and
30% in the United States.

The grain segment, which represents 76% of the commodity groups revenues, consists of three primary commodities: food grains, mainly wheat, representing 25% of the commodity groups revenues in 2005;
oilseeds and oilseed products (primarily canola seed, oil and meal) 24%; and feed grains (including feed barley, feed wheat and corn), 27%.

The vast majority of the grain produced in western Canada is exported. Production of grain in Canada varies considerably from year to year, affected primarily by weather conditions. Grain exports are volatile,
reflecting the size and quality of the crop produced, international market conditions and foreign government policy. The majority of the western Canadian grain moved by CN is exported via the ports of Vancouver and Prince Rupert, B.C., and Thunder
Bay, Ontario. Certain of these rail movements are subject to government regulation and to a revenue cap, which effectively establishes a maximum revenue entitlement that railways can earn.

In the U.S., the CN rail system is well positioned in the heart of the grain-producing territory. Two of the states in which CN has direct access, Illinois and Iowa, have had historically the largest annual production
of corn and soybeans. This allows CN to serve large grain processors in Illinois, Iowa, Tennessee, and Mississippi. Other domestic grain movements are to the poultry feeder markets in the southeastern United States, which rely on corn for feed.
Exports of grain and grain products represent another market for CN due to its access to major export facilities on the Mississippi River and the Gulf of Mexico.

Some of the worlds largest grain companies have processing plants located on the CN system. As a result, much of the grain traffic in which CN participates involves the movement of grain products that are
produced and then shipped to other receiver markets. Soybean meal, corn gluten feed, vegetable oils, corn syrups and starches are some of the products moved by CN.

Fertilizers and potash represent 24% of this commodity groups revenues. CN is a significant player in the Canadian rail market for nitrogen-based fertilizers, with production centered primarily in western Canada.
CN serves or has access to all major potash mines in Saskatchewan, the center for western Canadian production. CN also serves a major production facility on Canadas east coast. Virtually all Canadian potash moves by rail to markets in the U.S.
or overseas.

10

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In the United States, CN serves producers of various types of fertilizers, including nitrogen solutions, ammonium nitrate, urea and phosphate fertilizers. U.S. and Canadian fertilizer production is heavily impacted by
the price of natural gas that is a main raw material for most fertilizer production. When gas prices are high, many of the local producers reduce production. At the same time, however, imports can become more competitive and CN is positioned to
handle this business through access to Gulf ports in Louisiana.

This commodity group is comprised of the following two segments:

Domestic, which represented 50% of the commodity groups revenues in 2005, includes domestic Canada, transborder, Mexico and domestic U.S. traffic. Domestic provides
intermodal services through a number of channels in which services are retailed directly to beneficial owners of freight, and wholesaled to motor carriers, intermodal marketing companies, third-party logistics companies, and other transportation
intermediaries. The Domestic segment is driven by consumer markets, with market growth generally expected to be tied to the economy. The service is market-driven and very competitive with the trucking industry. The segments focus is to define
its services as truck competitive and cost-effective.

International, which represented 50% of the Intermodals revenues in 2005, transports import/export container business on behalf of ocean carrier companies. Within
Canada, CN ships from/to the ports of Vancouver, Montreal, St. John and Halifax. In the United States, CN ships from/to the ports of New Orleans and Gulfport and via rail connections at Chicago and Detroit to both the U.S. East and West Coast ports.
Key growth markets for the international segment have been between the ports of Vancouver and Montreal and locations in the Midwest. Connections with other Class I railways in Chicago have further extended the reach of CNs international
business into the U.S. Southeast. The international segment is driven mainly by North American economic conditions and shifting trade patterns between countries.

In 2005, CN continued to reap the benefits of its IMX program to smooth traffic flows, increase speed and reliability, and improve asset utilization and margins. IMX applies the discipline and precision of scheduled
railroading to intermodal transportation. With IMX, shippers are required to make reservations for spots on trains, while day-of-the-week pricing encourages the traffic to shift to off-peak days. This, in combination with required gate reservations
at CNs largest terminals, enables CN to align traffic with equipment and gate capacity and to improve speed and asset utilization. As a result of IMX, CN is seeing improvements in profit margins and CNs customers are benefiting from
improvements in speed and service reliability.

CN is a leading carrier of automotive products originating in southern Ontario, Michigan and Mississippi and moves finished vehicles and parts within Canada and the United States and in both directions across the
border. The principal commodities within the automotive unit are finished vehicles, with 82% of the commodity groups revenues in 2005, and automotive parts, with the remaining 18%.

CNs automotive revenues are closely correlated to automotive production and sales in North America. CN can access traffic from all Canadian vehicle assembly plants, nine assembly plants in Michigan and one in
Mississippi. CN also has access to parts production facilities in both the U.S. and Canada. CNs broad coverage enables it to consolidate full trainloads of automotive traffic for delivery to connecting railroads at key interchange points. CN
has the most direct rail link from southern Ontario to the Chicago gateway, providing efficient service in this time-sensitive sector. The Paul M. Tellier tunnel provides the ability to handle the tallest multi-level vehicle carriers as well as
maximum clearance for stacking vehicle frames. CN also offers single-line service through Chicago to a variety of other interchange locations for automotive traffic and CNs marketing alliance with KCS provides automotive

11

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customers with single-line service between facilities in Canada and Mexico. CN also serves shippers of import vehicles via the ports of Halifax and Vancouver, and through interchange with other railroads.

Our ability to deliver quality service, efficient operations, and profitable growth depends on the presence of a qualified and experienced workforce.  CN assesses workforce requirements on an ongoing basis.  While the
demographic profile of our employees going forward calls for detailed workforce planning, it also opens up opportunities to challenge how we do things and find new avenues to improve productivity.

As of December 31, 2005, CN employed a total of 14,979 employees in Canada and 6,561 employees in the United States.

In addition to its Employment Equity Policy (for Canadian employees) and an Equal Employment Opportunity Policy (for American employees), CN maintains a comprehensive Human Rights Policy for Canadian employees at CN.
These policies affirm CNs commitment to ensuring that there is no discrimination against any employee or applicant based on grounds of religion, race, sex, nationality, disability or any other prohibited grounds of discrimination. The policy
extends to recruitment, selection and compensation practices, as well as to working conditions and the work environment.  All Company vice-presidents have been mandated with the responsibility of implementing these policies and ensuring that all
work practices are in compliance. Internal complaint procedures have been established whereby any person covered by the Equal Employment Opportunity Policy can address their questions or concerns to their supervisor and/or human resources manager
who will address their complaints.

For a discussion of CNs competitive environment, see section 3.9 Risk Factors  Competition herein.

The Companys rail operations in Canada are subject to regulation as to (1) rate setting and network rationalization by the Canadian Transportation Agency(the Agency) under theCanada Transportation Act(Canada) (the CTA), and (2) safety by the federal Minister of
Transport under theRailway Safety Act(Canada) and certain other statutes. The Companys U.S. rail operations are subject to regulation by the Surface
Transportation Board (the STB) and the Federal Railroad Administration (the FRA).

The CTA gives railroads in Canada the freedom to negotiate prices according to market forces, subject to certain provisions aimed at protecting shippers. These shipper protections include,inter alia, interswitching, final offer arbitration and competitive line rates. Pursuant to interswitching provisions, all shippers within a 30 km radius (approximately 19 miles) of an
interchange between two federally regulated railroads have access to both at a prescribed interswitching rate. Final offer arbitration is used in cases of rate disputes between a shipper and a railroad and involves the selection by an arbitrator of
either the shippers or the carriers rate and service offer. Competitive line rate provisions can be invoked to require an originating railroad to issue to a shipper with sole rail access, a rate covering the movement to the nearest
junction with another railroad according to predetermined formulae.

12

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The CTA permits confidential contracts. Furthermore, railroads are subject to common carrier obligations for their services and, in case of breach, shippers may seek redress from the Agency. These shipper protections,
however, except for final offer arbitration, are subject to the requirement for the applicant to demonstrate that the shipper would suffer substantial commercial harm if the Agency were not to intervene.

The CTA encourages the sale of lines to short-line operators and provides the framework for line abandonment. The railroads are required to publish a three-year plan for sales and abandonments. For abandonment, the
line must be advertised as being for sale to the public and, if no interest is shown, offered specifically for sale to applicable federal, provincial and municipal governments. The entire process is intended to take at most 18 months. Legislation
currently in force in the provinces of British Columbia and Saskatchewan requires a corporations successor by merger or purchase of assets to assume the predecessors labor arrangements. These successor rights therefore limit
the Companys ability to dispose of routes to intraprovincial short-line operators in such provinces. The Company has considered provincial successor rights legislation in identifying routes for rationalization.

The Companys operations are also subject to safety and environmental provisions relating to track standards, equipment standards, transportation of hazardous materials, environmental assessments and certain labor
regulations, which are in many respects similar when comparing Canadian and U.S. regulations.

Periodically, a comprehensive review is made by the federal government of the effectiveness of theCTA and other statutes related to
transportation. See section 3.9 Risk Factors  Regulation herein for a further discussion of the last review of Canadian transportation legislation.

The STB has jurisdiction over, amongst other things, service levels, carrier practices, car compensation, and limited jurisdiction over carrier rates. It also has jurisdiction over the situations and terms under which
one railroad may gain access to another railroads traffic or facilities, the construction, extension, or abandonment of rail lines, railroad consolidations, and labor protection provisions in connection with the foregoing. The STBs
jurisdiction in these areas over rail transportation, including intrastate rail transportation, is exclusive, pre-empting other remedies under federal and state law.

The FRA has jurisdiction over railroad safety and equipment standards, and most rail safety regulation is handled at the federal level. In contrast to the exclusive role of the STB over railroad economic regulation,
however, state and local regulatory agencies have jurisdiction over certain local safety and operating matters and these agencies are becoming more aggressive in their exercise of jurisdiction. State legislatures have also recently enacted new laws
in this regard that are intended to regulate railroads more extensively.

Government regulation of the railroad industry is a significant determinant of the competitiveness and profitability of railroads. Deregulation of certain rates and services, plus the ability to enter into confidential
contracts, pursuant to theStaggers Rail Act of 1980(the Staggers Act), has substantially increased the flexibility of railroads to respond to market
forces and has resulted in highly competitive rates. Various interests have sought and continue to seek reimposition of government controls on the railroad industry in areas deregulated in whole or in part by the Staggers Act. Additional regulation,
changes in regulation and re-regulation of the industry through legislative, administrative, judicial or other action could materially affect the Company.

Following an extended review, in June 2001 the STB issued new regulations governing mergers between Class I Railroads. CN had recommended higher public interest standards for mergers and the new regulations effectively
raised the bar for the quality of customer service in all future major railroad mergers. The STB also agreed with CN that foreign-headquartered railroads would be treated the same as U.S.-based railroads under its merger rules.

See section 3.9 Risk Factors  Regulation for a further discussion of government regulation.

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3.7Environmental
     Matters

Regulatory compliance

A risk of environmental liability is inherent in railroad and related transportation operations; real estate ownership, operation or control; and other commercial activities of the Company with respect to both current
and past operations. As a result, the Company incurs significant compliance and capital costs, on an ongoing basis, associated with environmental regulatory compliance and clean-up requirements in its railroad operations and relating to its past and
present ownership, operation or control of real property. Environmental expenditures that relate to current operations are expensed unless they relate to an improvement to the property. Expenditures that relate to an existing condition caused by
past operations and which are not expected to contribute to current or future operations are expensed.

In Canada, the matter of environmental permits for the Company is complex because of an overlap between federal and provincial jurisdictions. When projects require approval by federal regulatory authorities,
environmental impact assessments are undertaken in accordance with federal requirements. Provincial and municipal environmental legislation may be applicable to railway activities if such legislation does not aim to regulate the management or
operations of railways. Therefore, the Company does not apply systematically for provincial, municipal or local environmental permits for its railway operations in Canada except (i) where obtaining and complying with such permits would not interfere
with the operations or management of its railway activities, (ii) where permitting issues were primarily of a provincial, municipal or local nature, (iii) where the Company or the governmental authority thought it was necessary to obtain such
permits to continue minor aspects of its railway operations or maintenance, or (iv) where the absence of a permit may affect a third party (such as a customer or a supplier). Because of the multiple jurisdictions involved and the extensive
provincial legislative authority to regulate environmental matters, there can be no assurance that additional provincial, municipal or local environmental permits will not be required in the future. The Company may incur additional expenses or
changes in its operations if such additional permits were to be required in the future.

See Managements Discussion and Analysis Environmental Claims and Note 18  Major Commitments and Contingencies  D. Environmental Matters, to the Companys Annual
Consolidated Financial Statements on pages 61-62 and 90-91, respectively of the Companys 2005 Annual Report for a further discussion of environmental matters.

CN has adopted a comprehensive environmental policy, which can be described as follows:

CN is committed to conducting its operations and activities in a manner that protects the natural environment.

CN considers protecting the environment a fundamental corporate social responsibility and a priority governing all its activities. With this comes the increased need for higher expectations and best practices by
businesses that affect the environment. CN has responded by implementing comprehensive environmental management programs.

It is CNs permanent challenge to continuously improve the environmental performance of CNs activities.

In support of those principles, CN makes the following commitments and expects its employees to act accordingly:

|1. | To integrate these principles throughout all significant aspects of CNs activities.                                                                                                                                                
|-- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|2. | To respect the applicable laws and regulations and adopt the required standards, procedures, contingency measures and management systems in order to ensure CN operations are managed safely, ecologically and in a
sustainable way.

14

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|3.  | To take necessary measures in order to prevent pollution, to conserve and use rationally the natural resources required for CN operations and implement relevant emergency response plans and procedures.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   
|4.  | To communicate to management, employees and contractors CNs commitment to improving health, safety and the environment and to providing training adapted to their needs.                                
|   
|5.  | To systematically evaluate CNs environmental performance through appropriate audits and report progress.                                                                                                
|   
|3.8 | Legal Proceedings                                                                                                                                                                                        
|   

In the normal course of its operations, the Company becomes involved in various legal actions, including claims relating to personal injuries, occupational disease and damage to property. The Company maintains
provisions for such items, which it considers to be adequate for all of its outstanding or pending claims. The final outcome with respect to actions outstanding or pending at December 31, 2005, or with respect to future claims, cannot be predicted
with certainty, and therefore there can be no assurance that their resolution will not have a material adverse effect on the Companys financial position or results of operations in a particular quarter or fiscal year.

As of March 21, 2006, the only legal proceedings to which CN was a party involving claims for damages in excess of 10% of its current assets and that it believes could be material to its operations, business or
results, if plaintiffs are successful, are described below. It is not currently expected, however, that such litigation proceedings will have a material adverse effect on the consolidated financial position or results of operations of CN.  The
Company will regularly assess its position as events progress.

This matter is a slavery reparations case, currently pending before the United States District Court for the Northern District of Illinois in Chicago, Illinois. The plaintiffs, a proposed class representing descendants
of slaves, brought this action seeking payment for work performed by slaves between 1607 and 1865.  The defendants include numerous major corporations, among them CN, Norfolk Southern Corp., Union Pacific Corporation, CSX Corporation, Fleet Boston
Financial Corp., Aetna Inc., Brown and Williamson Tobacco, Lehman Bros. Inc., Ligget Group Inc., New York Life Insurance Company, R.J. Reynolds Tobacco Company, Society of Lloyds, Loews Inc. and JP Morgan Chase & Co.  The amount claimed would be
in the trillions of dollars, some part of which would be claimed from IC, a subsidiary of CN. CN is contesting these proceedings, and a fully briefed motion to dismiss this case is pending before the court.

CN was first named in slavery reparations litigation in a complaint filed on September 4, 2002 in Louisiana.

The Louisiana complaint was consolidated in multi-district litigation proceedings in Chicago in the U.S. District Court. Plaintiffs also filed cases in California, Texas, Illinois, New Jersey and New York. CN is named
as a defendant in the Louisiana and California actions.

The cases are currently awaiting a ruling on the defendants motion to dismiss the consolidated complaint. There is also a proceeding in the U.S. Court of Appeals for the Seventh Circuit, where one of the
plaintiffs filed an appeal even though the District Court had not issued a final order. A ruling on the Appellate Courts jurisdiction to hear this proceeding is pending.

A lawsuit involving more than 350 plaintiffs was instituted on March 25, 2004 in Nova Scotia against Hawker Siddeley Canada Inc., Sydney Steel Corp., the Nova Scotia government, the Canadian government, Domtar Inc.,
and CN. The plaintiffs are seeking compensation for health problems and property losses due to soil and water contamination resulting from previous industrial activities near Sydney, Nova Scotia.

15

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The court action is still in the process of being certified as a class action. To date, none of the allegations contained in the claim have been proven in court.

Paul Band Litigation

On February 6, 2006, the Paul Indian Band filed a lawsuit in the Court of Queens Bench of Alberta against CN and the Alberta and Canadian governments. The various claims in the
lawsuit, totaling $775 million in the aggregate, are for alleged damages and economic losses suffered as a result of an oil spill from railcars into Wabamun Lake, Alberta bordering the Paul Band reserve lands, following the derailment of a CN
train on August 3, 2005. The plaintiffs are seeking specific damages of $500 million against CN, including $50 million in punitive damages, with the balance sought from the federal and Alberta governments.

To date, none of the allegations contained in the claim have been proven in court.

Calvin Shaun Davey Class Action Lawsuit

On February 17, 2006 Calvin Shaun Davey filed a statement of claim, in the Court of Queens Bench of Alberta, on behalf of himself and persons (other than the Paul Indian Band) who
owned lands and premises within a five-kilometer radius of the shores of Wabamun Lake at the time of the spill described above. The claim seeks $750 million in general damages and $200 million in punitive damages.

To date, none of the allegations contained in the claim have been proven in court.

See Managements Discussion and Analysis Personal injury and other claims on pages 60-61 of the Companys 2005 Annual Report for a general discussion on accounting
for personal injury and other claims.

3.8.1 Aboriginal Claims

CN and its predecessor companies have acquired lands throughout Canada from the Crown, including certain lands contained in aboriginal reserves. A portion of the Companys network,
primarily in British Columbia, is currently operated on these lands.

The Company believes that it possesses unrestricted and absolute title to lands acquired out of aboriginal reserves but, in recent years, some aboriginal bands have claimed to have a
continuing legal interest in such lands and they allege this interest prohibits the Company from disposing of the lands when they are no longer needed for railway purposes, except by allowing them to revert to the Crown for the benefit of
aboriginals. This issue is one which will ultimately be decided by the courts but, regardless of the outcome, there is no perceived material adverse effect as the right of the Company to continue to occupy and operate over such lands is not being
called into question.

As the issues surrounding aboriginal claims are complex and involve not only private interests but fiduciary and other obligations of the Government of Canada, CN has agreed with the
Government not to sell or otherwise dispose of land which is not essential to its rail operations and which is located in, or adjacent to, an aboriginal reserve, unless each of CN and the Government are satisfied that there is no legitimate
aboriginal claim with respect to such land. In addition, CN has agreed to convey to the Government, for no consideration, any land not integral to its rail operations which may be necessary to settle legitimate aboriginal claims with respect to such
land, or lands which were formerly reserve lands and which have become non-rail assets. The Government of Canada, for its part, has agreed that it will provide the necessary compensation for settlement of legitimate aboriginal claims which would
otherwise result in CN

16

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having to relinquish land essential to its rail network, unless such claims arise out of, or are substantially based upon, willful, known, negligent or fraudulent acts or omissions of
CN which adversely affected the rights or interests of aboriginal people.

3.9Risk
Factors

It is not reasonably possible to itemize all of the factors and specific events that could affect the Company and the railroad industry as a whole. The following factors (in addition to
other possible factors not listed) could affect the Companys actual results. In addition, these factors could cause such results to differ materially from those projected, forecasted, estimated, budgeted or otherwise expressed in
forward-looking statements made by or on behalf of the Company. See section 10.2 for a further discussion of risks associated with forward-looking statements.

Competition

The Company faces significant competition from a variety of carriers, including Canadian Pacific Railway Company (CP) which operates the other major rail system in Canada,
serving most of the same industrial and population centers as the Company, long distance trucking companies and, in many markets, major U.S. railroads and other Canadian and U.S. railroads. Competition is generally based on the quality and
reliability of services provided, price, and the condition and suitability of carriers equipment. Competition is particularly intense in eastern Canada where an extensive highway network and population centers, located relatively close to one
another, have encouraged significant competition from trucking companies. In addition, much of the freight carried by the Company consists of commodity goods that are available from other sources in competitive markets.  Factors affecting the
competitive position of suppliers of these commodities, including exchange rates, could materially adversely affect the demand for goods supplied by the sources served by the Company and, therefore, the Companys volumes, revenues and profit
margins.

In addition to trucking competition, and to a greater degree than other rail carriers, the Companys subsidiary, ICRR, is vulnerable to barge competition because its main routes
are parallel to the Mississippi River system. The use of barges for some commodities, particularly coal and grain, often represents a lower cost mode of transportation. Barge competition and barge rates are affected by navigational interruptions
from ice, floods and droughts, which can cause widely fluctuating barge rates. The ability of ICRR to maintain its market share of the available freight has traditionally been affected by the navigational conditions on the river.

The significant consolidation of rail systems in the United States has resulted in larger rail systems that are able to offer seamless services in larger market areas and accordingly,
compete effectively with the Company in certain markets. This requires the Company to consider transactions that would similarly enhance its own service. There can be no assurance that the Company will be able to compete effectively against current
and future competitors in the railroad industry and that further consolidation within the railroad industry will not adversely affect the Companys competitive position. No assurance can be given that competitive pressures will not lead to
reduced revenues, profit margins or both.

17

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Environmental matters

The Companys operations are subject to numerous federal, provincial, state, municipal and local environmental laws and regulations in Canada and the United States concerning,
among other things, emissions into the air; discharges into waters; the generation, handling, storage, transportation, treatment and disposal of waste, hazardous substances and other materials; decommissioning of underground and aboveground storage
tanks; and soil and groundwater contamination.  A risk of environmental liability is inherent in railroad and related transportation operations; real estate ownership, operation or control; and other commercial activities of the Company with respect
to both current and past operations. As a result, the Company incurs significant compliance and capital costs, on an ongoing basis, associated with environmental regulatory compliance and clean-up requirements in its railroad operations and relating
to its past and present ownership, operation or control of real property.

While the Company believes that it has identified the costs likely to be incurred in the next several years, based on known information, for environmental matters, the Companys
ongoing efforts to identify potential environmental concerns that may be associated with its properties may lead to future environmental investigations, which may result in the identification of additional environmental costs and
liabilities.

In railroad and related transportation operations, it is possible that derailments, explosions or other accidents may occur that could cause harm to human health or to the environment.
In addition, the Company is also exposed to liability risk, faced by the railroad industry generally, in connection with the transportation of toxic-by-inhalation hazardous materials such as chlorine and anhydrous ammonia, commodities that are
essential to the public health and welfare and that, as a common carrier, the Company has a duty to transport. As a result, the Company may incur costs in the future, which may be material, to address any such harm, including costs relating to the
performance of clean-ups, natural resource damages and compensatory or punitive damages relating to harm to individuals or property.

The ultimate cost of known contaminated sites cannot be definitely established, and the estimated environmental liability for any given site may vary depending on the nature and extent
of the contamination, the available clean-up techniques, the Companys share of the costs and evolving regulatory standards governing environmental liability. Also, additional contaminated sites yet unknown may be discovered or future
operations may result in accidental releases. For these reasons, there can be no assurance that material liabilities or costs related to environmental matters will not be incurred in the future, or will not have a material adverse effect on the
Companys financial position or results of operations in a particular quarter or fiscal year, or that the Companys liquidity will not be adversely impacted by such environmental liabilities or costs.

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Personal injury and other claims

In the normal course of its operations, the Company becomes involved in various legal actions, including claims relating to personal injuries, occupational disease and damage to
property. The Company maintains provisions for such items, which it considers to be adequate for all of its outstanding or pending claims. The final outcome with respect to actions outstanding or pending at December 31, 2005, or with respect to
future claims, cannot be predicted with certainty, and therefore there can be no assurance that their resolution will not have a material adverse effect on the Companys financial position or results of operations in a particular quarter or
fiscal year.

Labor negotiations

Canadian workforce

As of January 2006, the Company had in place labor agreements covering its entire Canadian unionized workforce. In 2006, CN will begin bargaining with two national unions whose
agreements expire December 31, 2006. These agreements will remain in effect until bargaining and legal processes have been concluded.

Following the acquisition of BC Rail, the Company reached implementing agreements in December 2004 for BC Rail employees with the Council of Trade Unions and its members, representing
all unions, regarding the integration of the various collective agreements. In March 2005, under Section 18 of theCanada Labour Code, the Company filed a request with the Canada Industrial Relations Board (the CIRB) to amend the current bargaining agent certificates at BC Rail to correspond with those agents representing the
same employee groups at CN. On October 13, 2005, the CIRB granted the Companys request but retained jurisdiction on any issues that might remain in contention.

There can be no assurance that the Company will be able to renew and have ratified its collective agreements without any strikes or lockouts.

U.S. workforce

As of January 2006, the Company had in place agreements with bargaining units representing the entire unionized workforce at GTW; DWP; ICRR; CCP Holdings, Inc. (CCP);
Duluth, Missabe & Iron Range Railroad (DMIR), Bessemer & Lake Erie (BLE) and Pittsburgh & Conneaut Dock Company (PCD), and 93% of the unionized workforce at WC. Agreements in place have various
moratorium provisions, ranging from the end of 2004 to the end of 2009, which preserve the status quo in respect of given areas during the terms of such moratoriums. Several of these agreements are currently under renegotiation.

The general approach to labor negotiations by U.S. Class I railroads is to bargain on a collective national basis. GTW, DWP, ICRR, CCP, WC, DMIR, BLE and PCD have bargained on a local
basis rather than holding national, industry-wide negotiations because they believe it results in agreements that better address both the employees concerns and preferences, and the railways actual operating environment.  However, local
negotiations may not generate federal intervention in a strike or lockout situation, since a dispute may be localized.  The Company believes the potential mutual benefits of local bargaining outweigh the risks.

Negotiations are ongoing with the bargaining units with which the Company does not have agreements or settlements. Until new agreements are reached or the processes of the Railway Labor
Act have been exhausted, the terms and conditions of existing agreements continue to apply.  Although the Company does not anticipate work action related to these negotiations while they are ongoing, there can be no assurance that there will not be
any such work action and that the resolution of these negotiations will not have a material adverse effect on the Companys financial position or results of operations.

19

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Regulation

The Companys rail operations in Canada are subject to regulation as to (i) rate setting and network rationalization by the Agency under the CTA, and (ii) safety by the federal
Minister of Transport under theRailway Safety Actand certain other statutes. The Companys
U.S. rail operations are subject to regulation as to (i) economic regulation by the STB and (ii) safety by the FRA. As such, various Company business transactions must gain prior regulatory approval, with attendant risks and uncertainties. The
Company is also subject to a variety of health, safety, security, labor, environmental and other regulations, all of which can affect its competitive position and profitability.

With respect to safety, rail safety regulation in Canada is the responsibility of Transport Canada, which administers the Canadian Railway Safety Act, as well as the rail portions of
other safety-related statutes. In the U.S., rail safety regulation is the responsibility of the Federal Railroad Administration, which administers theFederal Rail Safety
Act, as well as the rail portions of other safety statutes. In addition, safety matters related to security are overseen by the Transportation Security Administration, which
is part of the U.S. Department of Homeland Security.

The federal government carries out a review of Canadian transportation legislation periodically. The latest review resulted in a report to the Minister of Transport, released to the
public on July 18, 2001, which contains numerous recommendations for legislative changes affecting all modes of transportation, including rail. On February 25, 2003, the Canadian Minister of Transport released its policy documentStraight Ahead - A Vision for Transportation in Canada.  On March 24, 2005, the Minister of Transport tabled Bill
C-44 entitledAn Act to Amend the Canada Transportation Act and the Railway Safety Act,to enact the VIA Rail Canada Act and to make consequential amendments to other Acts. Bill C-44 was
terminated when Parliament was dissolved on November 29, 2005. No assurance can be given that any future legislative action by the federal government or other future government initiatives will not materially adversely affect the Company's financial
position or results of operations.

The U.S. Congress has had under consideration for several years various pieces of legislation that would increase federal economic regulation of the railroad industry.  In addition, the
STB is authorized by statute to commence regulatory proceedings if it deems them to be appropriate. No assurance can be given that any future regulatory initiatives by the U.S. federal government will not materially adversely affect the
Companys operations, or its competitive and financial position.

The Company is subject to statutory and regulatory directives in the United States addressing homeland security concerns. These include border security arrangements, pursuant to an
agreement the Company and CP entered into with U.S. Customs and Border Protection (CBP) and the Canada Border Services Agency (CBSA).  These requirements include advance electronic transmission of cargo information for
U.S.-bound traffic and cargo screening (including gamma ray and radiation screening), as well as U.S. government-imposed restrictions on the transportation into the United States of certain commodities. In the fourth quarter of 2003, the CBP issued
regulations to extend advance notification requirements to all modes of transportation and the U.S. Food and Drug Administration promulgated interim final rules requiring advance notification by all modes for certain food imports into the United
States. CBSA is also working on implementation of advance notification requirements for Canadian-bound traffic. The Company has also worked with the Association of American Railroads to develop and put in place an extensive industry-wide security
plan to address terrorism and security-driven efforts by state and local governments seeking to restrict the routings of certain hazardous materials. If such state and local routing restrictions were to go into force, they would be likely to add to
security concerns by foreclosing the Companys most optimal and secure transportation routes, leading to increased yard handling, longer hauls, and the transfer of traffic to lines less suitable for moving hazardous materials, while also
infringing upon the exclusive and uniform federal oversight over railroad security matters. While the Company will continue to work closely with the CBSA, CBP, and other Canadian and U.S. agencies, as above, no assurance can be given that future
decisions by the U.S., Canadian, provincial, state, or local governments on homeland security matters, or joint decisions by the industry in response to threats to the North

20

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American rail network, will not materially adversely affect the Companys operations, or its competitive and financial position.

In October 2002, the Company became the first North American railroad to gain membership in the U.S. Customs Trade Partnership Against Terrorism (C-TPAT). C-TPAT is a joint
government-business initiative designed to build cooperative relationships that strengthen overall supply chain and border security on goods exported to the U.S. The Company is also designated as a low-risk carrier under the Customs Self-Assessment
(CSA) program, a CBSA program designed to expedite the cross-border movement of goods of CSA-accredited importing companies for goods imported into Canada.

The Company's ownership of the former Great Lakes Transportation vessels is subject to regulation by the U.S. Coast Guard and the Department of Transportation, Maritime Administration,
which regulate the ownership and operation of vessels operating on the Great Lakes and in U.S. coastal waters. On February 4, 2004, the Maritime Administration and the U.S. Coast Guard issued a Joint Notice of Proposed Rulemaking, proposing
modifications to the regulations governing vessel documentation for lease financing for vessels engaged in the coastwise trade. In addition, the U.S. Congress has from time to time considered modifications to the legislation governing the United
States coastwise trade. As a result of maritime legislation enacted in 2004, the regulations governing the Company's acquisition of these vessels should not be affected. Subsequent to the enactment of this legislation, on April 13, 2005, the Coast
Guard and Maritime Administration withdrew their proposed rulemaking, and plan to publish a new notice of proposed rulemaking in the future to address the legislations provisions. No assurance can be given that any future legislative or
regulatory initiatives by the U.S. federal government will not materially adversely affect the Company's operations, or its competitive and financial position.

Business prospects and other risks

In any given year, the Company, like other railroads, is susceptible to changes in the economic conditions of the industries and geographic areas that produce and consume the freight it
transports or the supplies it requires to operate. In addition, many of the goods and commodities carried by the Company experience cyclicality in demand. Many of the bulk commodities the Company transports move offshore and are affected more by
global rather than North American economic conditions.  The Companys results of operations can be expected to reflect these conditions because of the significant fixed costs inherent in railroad operations.

Global as well as North American trade conditions, including trade barriers on certain commodities, may interfere with the free circulation of goods across Canada and the United States.

The Company, like other railroads, is susceptible to the volatility of fuel prices due to changes in the economy or supply disruptions. Rising fuel prices could materially adversely
affect the Companys expenses. As such, CN has implemented a fuel surcharge program to help mitigate the impact of rising fuel prices. No assurance can be given that continued increases in fuel prices or supply disruptions will not materially
adversely affect the Companys operations or its financial position.

Overall return in the capital market, and the level of interest rates, affect the funded status of the Company's pension plans as well as the Company's results of operations. Adverse
changes with respect to pension plan returns and the level of interest rates from the date of the last actuarial valuation may increase future pension contributions and could have a material adverse effect on the Companys results of
operations. The funding requirements as well as the impact on the results of operations will be determined following the completion of future actuarial valuations.

Potential terrorist actions can have a direct or indirect impact on the transportation infrastructure, including railway infrastructure in North America, and interfere with the free
flow of goods. International conflicts can also have an impact on the Companys markets.

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Although the Company conducts its business and receives revenues primarily in Canadian dollars, a growing portion of its revenues, expenses, assets and debt is denominated in U.S.
dollars. Thus, the Companys results are affected by fluctuations in the exchange rate between these currencies. Based on the Companys current operations, the estimated annual impact on net income of a year-over-year one-cent change in
the Canadian dollar relative to the U.S. dollar is approximately $10 million.  Changes in the exchange rate between the Canadian dollar and other currencies (including the U.S. dollar) make the goods transported by the Company more or less
competitive in the world marketplace and thereby further affect the Companys revenues and expenses.

Should a major economic slowdown or recession occur in North America or other key markets, or should major industrial restructuring take place, the volume of rail shipments carried by
the Company is likely to be adversely affected.

In addition to the inherent risks of the business cycle, the Companys operations are occasionally susceptible to severe weather conditions, which can disrupt operations and
service for the railroad as well as for the Companys customers. In recent years, severe drought conditions in western Canada, for instance, significantly reduced bulk commodity revenues, principally grain.

ITEM 4DIVIDENDS

The Company has declared dividends in line with its overall financial performance and cash flow generation. The Board of Directors makes decisions on dividend payout on a quarterly
basis. Consistent with this practice, the quarterly rate of $0.0833 per share, starting with the first quarter of 2003, was increased to $0.0975 per share, starting with the first quarter of 2004; the quarterly dividend was next increased to
$0.125 per share, starting with the first quarter of 2005 and to $0.1625 per share, starting with the first quarter of 2006. There can be no assurance as to the amount or timing of such dividends in the future.

ITEM 5DESCRIPTION OF
CAPITAL STRUCTURE

5.1General Description of
Capital Structure

The authorized share capital of CN consists of an unlimited number of Common Shares, an unlimited number of Class A Preferred Shares issuable in series and an unlimited number of Class
B Preferred Shares issuable in series, all without par value. As at February 28, 2006, the issued and outstanding share capital consisted of 536,150,916 Common Shares.

Common Shares

The Common Shares carry and are subject to the following rights, privileges, restrictions and conditions described below:

Voting:Each Common Share entitles its holder to receive notice of and to attend all general and special
meetings of shareholders of CN, other than meetings at which only the holders of a particular class or series of shares are entitled to vote, and each such Common Share entitles its holder to one vote.

Dividends:The holders of Common Shares are, at the discretion of the directors, entitled to receive, out
of any amounts properly applicable to the payment of dividend, and after the payment of any dividends payable on any Preferred Shares, any dividends declared and payable by CN on the Common Shares.

Dissolution: The holders of Common Shares shall be entitled to share equally in any distribution of the
assets of CN upon the liquidation, dissolution or winding-up of CN or other distribution of its assets among its

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shareholders. Such participation is subject to the rights, privileges, restrictions and conditions attaching to any issued and outstanding Preferred Shares or shares of any other class
ranking prior to the Common Shares.

Preferred Shares

The Class A Preferred Shares and the Class B Preferred Shares are issuable in series and, subject to CNs Articles, the Board of Directors is authorized to fix, before issuance,
the designation, rights, privileges, restrictions and conditions attaching to the shares of each series. The holders of Class A Preferred Shares or Class B Preferred Shares shall not be entitled to vote at meetings of shareholders otherwise than as
provided by law, and holders of Class A or Class B Preferred Shares shall not be entitled to vote separately as a class except as provided by law.

There are neither any Class A Preferred Shares nor any Class B Preferred Shares currently issued and outstanding.

5.2Share Ownership
Constraints

CNs Articles provide that where the total number of voting shares held, beneficially owned, or controlled, directly or indirectly, by any one person together with his or her
associates exceeds 15%, no person shall exercise the voting rights attached to the voting shares held, beneficially owned or controlled, directly or indirectly, by such person or his or her associates. Furthermore, all dividends attributable to the
percentage of voting shares held by such persons in excess of 15% shall be forfeited, including any cumulative dividend. CNs Articles confer on the Board of Directors all powers necessary to give effect to the ownership restrictions, including
the ability to pay dividends or to make other distributions which would otherwise be prohibited if the event giving rise to the prohibition was inadvertent or of a technical nature or it would otherwise be inequitable not to pay the dividends or
make the distribution. CNs Articles provide that the Board of Directors may adopt by-laws concerning the administration of the constrained share provisions described above, including by-laws requiring a shareholder to furnish a declaration
indicating whether he or she is the beneficial owner of the shares and whether he or she is an associate of any other shareholder. In addition, CN is also authorized to refuse to recognize the ownership rights that would otherwise be attached to any
voting shares held, beneficially owned or controlled, directly or indirectly, contrary to the share ownership constraint. Finally, CN has the right, for the purpose of enforcing any constraint imposed pursuant to its Articles, to sell, as if it were
the owner thereof, any voting shares that are owned or that the directors determine may be owned, by any person or persons contrary to such share ownership constraint.

5.3Ratings of Debt
Securities

Various classes of CNs outstanding securities have been rated by several rating organizations as described in detail below, as at March 15, 2006.

Dominion Bond Rating
        Service
      Moodys
      Investors Service
      Standard &
        Poors Long-Term Debt
        A (low)
        A3
        A-Commercial Paper
        R-1 (low)
        Not rated
        A-2


The above-noted ratings are given the following credit characteristics by the various rating agencies.

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Dominion Bond Rating Service Limited (DBRS)

| | Long-term
        debt rated A is of satisfactory credit quality. Protection of interest
        and principal is still substantial, but the degree of strength is less
        than AA rated securities. While A is a respectable rating,
        entities in this category are considered to be more susceptible to adverse
        economic conditions and have greater cyclical tendencies than higher-rated
        securities. This rating falls within the third highest of DBRSs
        ten long-term debt rating categories which range from AAA to D.
        Reference to low denotes a standing in the lower end of a
    rating category.
|- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
| | Commercial
        paper rated R-1 (low) is of satisfactory credit quality. The overall
        strength and outlook for key liquidity, debt, and profitability ratios
        is not normally as favourable as with higher rating categories, but these
        considerations are still respectable. Any qualifying negative factors
        that exist are considered manageable, and the entity is normally of sufficient
        size to have some influence in its industry. This rating falls within
        the third highest of DBRSs ten short-term debt rating categories
    which range from R-1 (high) to D.                                 

Moodys Investors Service (Moodys)

| | Long-term
        debt obligations rated A are considered upper-medium grade and are subject
        to low credit risk. This rating falls within the third highest of Moodys
        nine generic long-term obligation rating categories which range from Aaa to C.
        The modifier 3 indicates a ranking in the lower end of that
    generic rating category.
|- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Standard & Poors (S&P)

| | Long-term
        debt obligations rated A are somewhat more susceptible to the adverse
        effects of changes in circumstances and economic conditions than obligations
        in higher rated categories. The obligors capacity to meet its financial
        commitment on the obligations is, however, still strong. This rating
        falls within the third highest of S&Ps ten major long-term
        credit rating categories which range from AAA to D.
        The minus (-) sign indicates a standing in the lower end within a major
    category.
|- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
| | Commercial
        paper rated A-2 is somewhat more susceptible to the adverse effects of
        changes in circumstances and economic conditions than obligations in
        higher rating categories. However, the obligors capacity to meet
        its financial commitment on the obligation is satisfactory. This rating
        falls within the second highest in S&Ps six short-term credit
    rating categories which range form A-1 to D.                                                                                                                

The
    ratings of CNs securities described above should not be construed as
    a recommendation to buy, sell, or hold CN securities. Ratings may be revised
or withdrawn at any time by the rating agencies.

ITEM 6TRANSFER AGENT AND
REGISTRAR

In Canada, the transfer agent and registrar for each class of CNs publicly issued securities is Computershare Trust of Canada and, in the United States, the co-transfer agent and
co-registrar is Computershare Trust Company of New York, at the locations specified below:

> 24

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Computershare
  Trust Company of Canada1500 University
  St. Suite 700Montreal, Quebec
  H3A 3S8Toll Free Tel:
  1-800-332-0095Toll Free Fax:
  1-888-453-0330Email:service@computershare.comWeb: www.computershare.com

Co-transfer
      agent and co-registrarComputershare
  Trust Company of New York88 Pine Street19th FloorNew York, NY
  10005Telephone: (212)
  701-7600 or1-800-245-7630

ITEM 7MARKET FOR
SECURITIES

7.1Trading Price and
Volume

CNs common shares are listed on both the Toronto Stock Exchange and the New York Stock Exchange under the stock symbols CNR and CNI, respectively. The following table sets forth
the closing price ranges and aggregate trading volumes of the common shares on the TSX for each month of 2005.

MONTH
      
      HIGH
      
      LOW
      
      VOLUMEJanuary
      
      $36.85
      
      $33.75
      
      35,434,046February
      
      $39.08
      
      $36.17
      
      27,090,666March
      
      $38.74
      
      $36.53
      
      28,140,756April
      
      $38.63
      
      $35.42
      
      28,290,726May
      
      $38.40
      
      $36.18
      
      27,522,934June
      
      $38.12
      
      $35.34
      
      30,813,086July
      
      $41.13
      
      $35.26
      
      28,521,950August
      
      $40.82
      
      $39.17
      
      25,317,806September
      
      $41.25
      
      $39.07
      
      30,292,424October
      
      $42.75
      
      $40.90
      
      33,372,770November
      
      $47.03
      
      $43.15
      
      28,830,310December
      
      $47.53
      
      $45.41
      
      23,638,074 7.2 Prior Sales


During its financial year ended December 31, 2005, the Company did not issue any series of long-term debt securities.

In the ordinary course of business, the Company did, however, issue commercial paper with maturities less than 12 months, of which US$367 million (CDN$427 million) was
outstanding at December 31, 2005.

ITEM 8DIRECTORS AND
EXECUTIVE OFFICERS

8.1Directors

The information with respect to directors, which appears on pages 6 to 10 of the Companys Information Circular (the Circular) dated March 7, 2006, under the heading
Nominees for Election to the Board, is incorporated herein by

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reference. Each such nominee, except Mr. Robert H. Lee, is currently a director of CN. CNs directors hold office until the next annual meeting of shareholders or until such
persons successor is elected or appointed. The Circular is available on SEDAR at www.sedar.com.

8.2Audit
committee disclosure

The information with respect to CNs Audit Committee, which appears in the following sections in the Circular is incorporated by reference: Audit Committee Disclosure
on pages 18 to 19, Auditors Fees on page 20, Schedule A  Statement of Corporate Governance Practices on pages 46 to 48 and Schedule C  Charter of the Audit Committee on pages 51 to 54 of the Circular.
The Circular is available on SEDAR at www.sedar.com.

8.3Executive Officers

As of the date hereof, the following are the senior executive officers of the Company:

|Name               |  | Position and Municipality of           |  | Principal Occupation within the       
|------------------ |  | -------------------------------------- |  | --------------------------------------
|                   |  | Residence                              |  | Preceding Five Years                  
|                   |  |                                        |  |                                       
|E. Hunter Harrison |  | President and Chief Executive Officer  |  | President and Chief Executive Officer;
|                   |  | Burr Ridge, Illinois, United States    |  | Executive Vice-President and Chief    
|                   |  |                                        |  | Operating Officer.                    
|                   |  |                                        |  |                                       
|Tullio Cedraschi   |  | President and Chief Executive Officer, |  | President and Chief Executive Officer,
|                   |  | CN Investment Division                 |  | CN Investment Division                
|                   |  | Montreal,Quebec, Canada                |  |                                       
|                   |  |                                        |  |                                       
|Keith E. Creel     |  | Senior Vice-President,                 |  | Senior Vice-President,                
|                   |  | Eastern Canada Region                  |  | Eastern Canada Region; Senior Vice-   
|                   |  | Stouffville, Ontario, Canada           |  | President of the Western Canada       
|                   |  |                                        |  | Region; Vice President of the Prairie 
|                   |  |                                        |  | Division; General Manager  Michigan  
|                   |  |                                        |  | Zone, Midwest Division.               
|                   |  |                                        |  |                                       
|Les P. Dakens      |  | Senior Vice-President, People          |  | Senior Vice-President, People; Senior 
|                   |  | Montreal, Quebec, Canada               |  | Vice-President, Corporate Services,   
|                   |  |                                        |  | CN; 
Vice-President, Human            
|                   |  |                                        |  | Resources and Administration, Heinz   
|                   |  |                                        |  | North America.                        
|                   |  |                                        |  |                                       
|Sean Finn          |  | Senior Vice-President Public Affairs,  |  | Senior Vice-President Public Affairs, 
|                   |  | Chief Legal Officer and Corporate      |  | Chief Legal Officer and Corporate     
|                   |  | Secretary                              |  | Secretary; Chief Legal Officer and    
|                   |  | St-Lambert, Quebec, Canada             |  | Corporate Secretary.                  
|                   |  |                                        |  |                                       
|James M. Foote     |  | Executive Vice-President, Sales and    |  | Executive Vice-President, Sales and   
|                   |  | Marketing                              |  | Marketing                             
|                   |  | Chicago, Illinois, United States       |  |                                       
|                   |  |                                        |  |                                       
|Fred R. Grigsby    |  | Senior Vice-President and Chief        |  | Senior Vice-President and Chief       
|                   |  | Information Officer                    |  | Information Officer; Vice-President   
|                   |  | Beaconsfield, Quebec, Canada           |  | and Chief Information Officer.        
|                   |  |                                        |  |                                       

26

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|                  |  |                                      |  |                                       
|----------------- |  | ------------------------------------ |  | --------------------------------------
|Edmond L. Harris  |  | Executive Vice-President, Operations |  | Executive Vice-President, 
Operations;
|                  |  | Naperville, Illinois, United States  |  | Senior 
Vice-President, Operations;   
|                  |  |                                      |  | Chief Transportation Officer.         
|                  |  |                                      |  |                                       
|Peter C. Marshall |  | Senior Vice-President, Western       |  | Senior 
Vice-President, Western       
|                  |  | Canada Region                        |  | Canada Region; Vice-President, Gulf   
|                  |  | Edmonton, Alberta, Canada            |  | Division; 
Vice-President, Midwest    
|                  |  |                                      |  | Division; 
Vice-President, Prairie    
|                  |  |                                      |  | Division.                             
|                  |  |                                      |  |                                       
|Claude Mongeau    |  | Executive Vice-President and Chief   |  | Executive Vice-President and Chief    
|                  |  | Financial Officer                    |  | Financial Officer.                    
|                  |  | Boucherville, Quebec, Canada         |  |                                       
|                  |  |                                      |  |                                       
|Gordon T. Trafton |  | Senior Vice-President, United States |  | Senior Vice-President, United States  
|                  |  | Region                               |  | Region, Vice President, Midwest and   
|                  |  | Naperville, Illinois, United States  |  | Gulf Divisions; Vice-President of the 
|                  |  |                                      |  | Midwest Division; Vice-President of   
|                  |  |                                      |  | the Wisconsin Central Division.       
|                  |  |                                      |  |                                       

As at February 28, 2006, the directors and the members of the executive committee of the Company, including the senior executive officers mentioned above, as a group, beneficially
owned, directly or indirectly, or exercised control or direction over, or held options to exercise an aggregate ofapproximately 11.4 million Common Shares, representing approximately 2.1% of CNs outstanding Common Shares.  Excluding options, the directors and members of the executive committee, as a group, beneficially owned or exercised
control or direction over approximately 1.5 million Common Shares or approximately 0.3% of the outstanding Common Shares at such date.

8.4Cease Trade Orders,
Bankruptcies, Penalties or Sanctions

To the knowledge of the Company and based upon information provided to it by the Companys directors and executive officers, none of such directors or executive officers is or has
been, in the last 10 years, a director or executive officer of any company that, while such person was acting in that capacity: (a) was the subject of a cease trade or similar order or an order that denied the relevant company access to any
exemption under securities legislation, for a period of more than 30 consecutive days; (b) was subject to an event that resulted, after that person ceased to be a director or executive officer, in the company being the subject of a cease trade or
similar order or an order that denied the relevant company access to any exemption under securities legislation, for a period of more than 30 consecutive days; or (c) within a year of that person ceasing to act in that capacity, became bankrupt,
made a proposal under any legislation relating to bankruptcy or insolvency or was subject to or instituted any proceedings, arrangement or compromise with creditors or had a receiver, receiver manager or trustee appointed to hold its assets, except
for the following:

27

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|(i)   | Mr. Baillie, a director of the Company, is a director of Dana Corporation which filed voluntary petitions for reorganization under Chapter 11 of theU.S. Bankruptcy Codeon March 3, 2006. Danas European, South American, Asian-Pacific, Canadian and Mexican subsidiaries are not
included in the Chapter 11 filing;                                                                                                                                                                                                                                                                                                                                                                                      
|----- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     
|(ii)  | Mr. Crawford, a director of the Company, was the Chairman of Allstream Inc. when it voluntarily filed for protection under theCompanies Creditors Arrangement Act(CCAA) in September 2002. Allstream Inc., through a series of negotiations with bondholders and other
creditors, successfully emerged from the CCAA proceedings and was restructured in April 2003, though Mr. Crawford is no longer a director of Allstream Inc.;                                                                                                                                                                                                                                                                      
|     
|(iii) | Mr. Cyr, a director of the Company, was a director of Air Canada when it voluntarily filed for protection under the CCAA in April 2003 and was a director of Cable Satisfaction
International Inc. when it voluntarily filed for protection under the CCAA in July 2003. Air Canada successfully emerged from the CCAA proceedings and was restructured pursuant to a plan of arrangement in September 2004 and Cable Satisfaction
International Inc.s second amended and restated plan of arrangement and reorganization was approved by its creditors and sanctioned by the Quebec Superior Court in March 2004. Mr. Cyr is no longer a director of Air Canada and Cable
Satisfaction International Inc.;
|     
|(iv)  | Mr. Lumley, a director of the Company, was a director of Air Canada when it voluntarily filed for protection under the CCAA in April 2003. Air Canada successfully emerged from the CCAA
proceedings and was restructured pursuant to a plan of arrangement in September 2004, though Mr. Lumley is no longer a director of Air Canada; and                                                                                                                                                                                                                                                                                                                                                                 
|     
|(v)   | Mr. Claude Mongeau, the Executive Vice-President and Chief Financial Officer of the Company, was acting as a director of 360networks Corporation prior to the latter voluntarily filing
for protection under the CCAA in June 2001. 360networks Corporation underwent restructuring in 2002 and sold its Canadian assets to Bell Canada in November 2004. Mr. Mongeau is no longer a director of 360networks Corporation.                                                                                                                                                                                                                                                                                   

ITEM 9INTEREST OF EXPERTS

KPMG LLP is the external auditor who prepared the Report of Independent Registered Public Accounting Firm to the Board of Directors and to the Shareholders of Canadian National Railway
Company for CNs Annual Consolidated Financial Statements prepared under U.S. generally accepted accounting principles for its most recently completed financial year.

ITEM 10ADDITIONAL
INFORMATION

10.1Additional
Information

Additional information regarding CN can be found on SEDAR atwww.sedar.com. Additional information, including directors and officers remuneration and securities authorized for issuance under equity
compensation plans, is contained in the Circular prepared in respect of its annual meeting of shareholders to be held on April 21, 2006. Additional financial information is provided in CNs Annual Consolidated Financial Statements and
Managements Discussion & Analysis for its most recently completed financial year.

10.2Factors for
Forward-Looking Information

Canadian and U.S. securities laws provide a safe harbor for forward-looking statements to encourage companies to provide prospective information, so long as such
information is identified as forward-looking and is accompanied

28

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by meaningful cautionary statements identifying important factors that could cause actual results to differ materially from those discussed in the statement. Except for historical
information, certain statements contained in this annual information form and annual report filed on Form 40-F with the U.S. Securities and Exchange Commission may be forward-looking statements within the meaning of such Canadian and
U.S. securities laws. In addition, the Company and its representatives from time to time participate in speeches, meetings and calls with market analysts, conferences with investors and potential investors in the Companys securities, and other
meetings and conferences. Some of the information presented in such speeches, calls, meetings and conferences may be forward-looking within the meaning of such Canadian and U.S. securities laws. Implicit in these statements, particularly in respect
of growth opportunities, is the assumption that the positive economic trends in North America and Asia will continue. This assumption, although considered reasonable by the Company at the time of preparation, may not materialize. Such
forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties and other factors which may cause the outlook, the actual results or performance of the Company or the rail industry to be
materially different from any future results or performance implied by such statements. Such factors include the specific risks set forth below as well as other risks detailed from time to time in reports filed by the Company with securities
regulators in Canada and the United States.

In order to take advantage of such safe harbor provisions, the Company identified the important factors set forth below that could affect the Companys actual results
and cause such results to differ materially from those projected, forecasted, estimated, budgeted or otherwise expressed by the Company in forward-looking statements made by or on behalf of the Company. Reference is made to Risk Factors
in section 3.9 of this AIF for additional discussion of such factors.

| | (1) | Significant competition
may lead to reduced volumes and revenues and narrower profit margins.                                                                                                                                                          
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (2) | Significant environmental
regulatory compliance and clean-up costs and unforeseen environmental liabilities
and costs may adversely affect the Companys financial position or
results of operations or the Companys liquidity.                       
|
| | (3) | The outcome of
outstanding or pending legal actions or future claims cannot be predicted with
certainty.                                                                                                                                               
|
| | (4) | There can be
no assurance that the Company will be able to renew and have ratified its collective
agreements without any strikes or lockouts.                                                                                                          
|
| | (5) | New legislative,
administrative or judicial actions that constrain market forces may have a material
adverse effect on the Companys competitive position and
profitability.                                                                           
|
| | (6) | Continued increases
in fuel prices or supply disruptions may have a negative impact on the Companys
results of operations or financial position.                                                                                                      
|
| | (7) | Adverse changes
with respect to pension plans and the level of interest rates from the date of
the last actuarial valuation may increase future pension contributions and could
have a  material adverse effect on the Companys results of operations.
|
| | (8) | Substantial ongoing
capital expenditures may require the Company to seek additional financing.                                                                                                                                                         
|
| | (9) | Changes in the
exchange rate between the Canadian dollar and other currencies may adversely
affect the Companys results of operations.                                                                                                                
|

29

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| | (10) | Adverse economic conditions in the industries and geographic areas that produce and consume the freight the Company transports or the supplies it requires to operate may affect the
Companys results of operations.
| | ---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (11) | International conflicts and potential terrorist actions may impact the Companys results of operations.                                                                                                              
|
| | (12) | Severe weather conditions may result in temporary halts or slowdown in train operations, which may lead to some revenue loss.                                                                                        
|

30

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SCHEDULE A

Reconciliation of Non-GAAP Measures

Reconciliation of adjusted performance measures  2002 and 2003

|In
    millions, except per share data, or unless otherwise indicated
|---------------------------------------------------------------------
|                                                                     
|Year ended December
    31,                                          
|                                                                     
|                                                                     
|                                                                     
|                                                                     
|                                                                     
|Revenues                                                             
|Operating expenses                                                   
|                                                                     
|Operating income                                                     
|                                                                     
|Interest expense                                                     
|Other income                                                         
|                                                                     
|Income before income taxes                                           
|and cumulative effect of                                             
|change in accounting policy                                          
|Income tax expense                                                   
|                                                                     
|Income before cumulative effect                                      
|of change in accounting policy                                       
|Cumulative effect of change in                                       
|accounting policy, net of                                            
|applicable taxes                                                     
|                                                                     
|Net income                                                           
|                                                                     

Free cash flow  2002 to 2005

|In millions                                      |   |       |   |   |        |   |   |        |   |   |        |  
|------------------------------------------------ | - | ----- | - | - | ------ | - | - | ------ | - | - | ------ | -
|                                                 |   |       |   |   |        |   |   |        |   |   |        |  
|                                                 |   |       |   |   |        |   |   |        |   |   |        |  
|                                                 |   | 2002  |   |   | 2003   |   |   | 2004   |   |   | 2005   |  
|                                                 |   |       |   |   |        |   |   |        |   |   |        |  
|Cash provided from operating activities          | $ | 1,612 |   | $ | 1,976  |   | $ | 2,139  |   | $ | 2,705  |  
|                                                 |   |       |   |   |        |   |   |        |   |   |        |  
|Less:                                            |   |       |   |   |        |   |   |        |   |   |        |  
|Investing activities                             |   | (924  | ) |   | (1,075 | ) |   | (2,411 | ) |   | (1,075 | )
|Dividends paid                                   |   | (170  | ) |   | (191   | ) |   | (222   | ) |   | (275   | )
|                                                 |   |       |   |   |        |   |   |        |   |   |        |  
|Cash provided (used) before financing activities |   | 518   |   |   | 710    |   |   | (494   | ) |   | 1,355  |  
|                                                 |   |       |   |   |        |   |   |        |   |   |        |  
|                                                 |   |       |   |   |        |   |   |        |   |   |        |  
|Adjustments:                                     |   |       |   |   |        |   |   |        |   |   |        |  
|Change in level of accounts receivable sold(1)   |   | (5    | ) |   | (132   | ) |   | (12    | ) |   | (54    | )
|Acquisitions(2)                                  |   | -     |   |   | -      |   |   | 1,531  |   |   | -      |  
|                                                 |   |       |   |   |        |   |   |        |   |   |        |  
|Free cash flow                                   | $ | 513   |   | $ | 578    |   | $ | 1,025  |   | $ | 1,301  |  
|                                                

|(1) | Changes in the level of accounts
receivable sold under the Companys
accounts receivable securitization program are considered a financing activity.     
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------
|    |                                                                                                                                                          
|(2) | Significant acquisitions,
BC Rail and GLT in 2004, are excluded, as they are not indicative of normal
day-to-day investments in the Companys asset base.

31

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SIGNATURES

Pursuant to the requirements of the Exchange Act, the Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this
annual report to be signed on its behalf by the undersigned, thereto duly authorized.

CANADIAN
               NATIONAL RAILWAY COMPANYBy:
      /s/
          Sean FinnName:
      Sean
               FinnTitle:
      Senior
               Vice-President Public Affairs, ChiefLegal Officer
      and Corporate SecretaryDate:
      March 21, 2006


---



EXHIBIT INDEX



|Exhibit
    No. |  | Description                                                                                                                                                                                           
|--------------- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                |  |                                                                                                                                                                                                       
|99.1            |  | Management's Discussion
and Analysis for the year ended December 31, 2005 (pages 45 through 68 of the
2005 Annual Report).*                                                                           
|               
|99.2            |  | Audited Consolidated Financial
Statements for the year ended December 31, 2005, together with the Report of
independent registered accounting firm (pages 69 through 100 of the 2005 Annual
 Report).*
|               
|99.3            |  | Consent of KPMG LLP.                                                                                                                                                                                  
|               
|99.4            |  | CEO Section 302 Certification.                                                                                                                                                                        
|               
|99.5            |  | CFO Section 302 Certification.                                                                                                                                                                        
|               
|99.6            |  | CEO and CFO Section 906 Certification.                                                                                                                                                                
|               

____________
*Incorporated by reference to the Registrants Annual Report on Form 6-K dated March 21, 2006.

---