We are currently moving our web services and information to Canada.ca.
The Treasury Board of Canada Secretariat website will remain available until this move is complete.
Use of the Social Insurance Number
Chief Information Officer Branch
Treasury Board of Canada Secretariat
219 Laurier Avenue West, 14th Floor
Ottawa, Ontario, Canada
Telephone: (613) 946-4945
Last Revision: December 1, 1993
Alternative Formats: This publication is available in alternative formats.
Table of Contents
- Date modified: