|   |  Industry      Canada   |  Industrie      Canada |
|--------|----------------------------------------|-----------------------------|

| Certificateof      Amendment         | Certificatde      modification                                 |
|-------------------------------------------|----------------------------------------------------------------|
| Canada      BusinessCorporations      Act | Loi      canadienne surles      sociétés par actions |

|  EXFO      Ingénierie Électro-Optique inc./                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                      |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| EXFO      Electro-Optical Engineering inc.                                                                                                                                                                                                                                                     |   | 197586-2                                                                                                                                                                                                                                                                                                                                                                                                                  |
|          _____________________________________                                                                                                                                                                                                                                       |   |          ________________________________                                                                                                                                                                                                                                                                                                                                                                  |
| Name      of corporation-Dénomination de la société                                                                                                                                                                                                                        |   |          Corporation number-Numéro de la société                                                                                                                                                                                                                                                                                                                                            |
| I      hereby certify that the articles of theabove-named      corporation were amended:                                                                                                                                                                                                  |   |          Je certifie que les statuts de la société         susmentionnée ont été modifiés :                                                                                                                                                                                                                                                              |
| a)         under section 13 of the Canada            Business Corporations Act in            accordance with the attached notice;                                                                         | o      | a)        en vertu de l’article 13 de la Loi            canadienne sur les sociétés par            actions, conformément à l’avis ci-joint;                                                                                                                                                                    |
| b)        under section 27 of the Canada            Business Corporations Act as set out in            the attached articles of amendment            designating a series of shares;  | o      | b)        en vertu de l’article 27 de la Loi            canadienne sur les sociétés par            actions, tel qu’il est indiqué dans les            clauses modificatrices ci-jointes            désignant une série d’actions;  |
| c)         under section 179 of the Canada            Business Corporations Act as set out in            the attached articles of amendment;                                                                   | þ | c)   en      vertu de l’article 179 de la Loi            canadienne sur les sociétés par            actions, tel qu’il est indiqué dans les            clauses modificatrices ci-jointes;                                                                                   |
| d)         under section 191 of the Canada            Business Corporations Act as set out in            the attached articles of reorganization;                                     | o      | d)        en vertu de l’article 191 de la Loi            canadienne sur les sociétés par            actions, tel qu’il est indiqué dans les            clauses de réorganisation ci-jointes;                                                                                     |
| /s/      signed                                                                                                                                                                                                                                                                                |   | February 6, 2003 / le 6 février      2003                                                                                                                                                                                                                                                                                                                                                                            |
| Director      - Directeur                                                                                                                                                                                                                                                                           |   | Date      of Amendment / Date de modification                                                                                                                                                                                                                                                                                                                                                                        |

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|   | Industry      Canada                      | Industrie      Canada                                          |                                               |                                                 |   |
|--------|-------------------------------------------|----------------------------------------------------------------|----------------------------------------------------|------------------------------------------------------|--------|
|   |                                      |                                                           | FORM      4                                        | FORMULE      4                                       |   |
|   | Canada      BusinessCorporations      Act | Loi      canadienne sur lesSociétés      par actions | ARTICLES      OF AMENDMENT(SECTION      27 OR 177) | CLAUSES      MODIFICATRICES(ARTICLES      27 OU 177) |   |

| 1-      Name of corporation – Dénomination de la société                    | 2-      Corporation No. – No      de la société                                                                  |
|-------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------|
| EXFO      Ingénierie Électro-Optique Inc. /EXFO      Electro-Optical Engineering Inc.  | 197586-2                                                                                                                         |
|  3-      The articles of the above-named corporation are amended as      follows :          |  Les      statuts de la société mentionnée ci-dessus sont modifiés de la      façonsuivante : |

| 1.   | Article      7 of the Restated Articles of Incorporation dated June 29, 2000 shall be      amended by inserting the |
|----------------|---------------------------------------------------------------------------------------------------------------------|

| a)   | the      greater metropolitan area of any following cities in the United States of      America: Boston (Massachusetts), Chicago (Illinois), Dallas (Texas),      Denver (Colorado), Detroit (Michigan), Houston (Texas), Los Angeles      (California), Miami (Florida), New York (New York), Philadelphia      (Pennsylvania), San Francisco (California), Seattle (Washington),      Washington (District of Columbia); |
|----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b)   | to      the extent permitted by the Canada Business Corporations      Act, any other city outside Canada designated from time to time by      the Board of Directors of the Corporation in connection with the then next      annual meeting of shareholders”. |
|----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Date             | Signature                 | Title-Titre                                                                                                           |
|-----------------------|---------------------------|-----------------------------------------------------------------------------------------------------------------------|
| January      24, 2003 | /s/      Kimberly Okell   | Secretary      and Legal Counsel                                                                                      |
|                  |  Kimberly      Okell |  FOR      DEPARTMENTAL USE ONLY - À L’USAGE DU MINISTÈRE SEULEMENTFiled      - Déposée |

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