The application form for Electronic Data Interchange is presently standardized across all lines of business (Carrier, Importer, Exporter, Warehouse Operator, etc.)
If your company has not yet registered with the CBSA, use this form to do so by selecting “NEW” in the top left-hand corner. If your company wishes to make the CBSA aware of any changes, select “UPDATE”.
The BSF691 is available here: http://www.cbsa-asfc.gc.ca/publications/forms-formulaires/bsf691-eng.pdf