A letter signed by an authorized person printed on the business's letterhead or bearing its seal with:
the SAAQ file number or subdivision number or Québec enterprise number (NEQ)
the previous address
the complete new address
the date the change of address takes effect
the last name and first name of the employee authorized by the business
the function of the employee authorized by the business
the date of the request
the signature of the employee authorized by the business
To make the change of address
Mail
Service aux entreprises Société de l'assurance automobile du Québec 333, boulevard Jean-Lesage, C-3-33 Case postale 19600, succursale Terminus Québec (Québec) G1K 8J6