ISBNs and Catalogue Numbers

Transition to the new Integrated Library System

During our transition to our new business system, we will be unable to assign ISBNs and Government of Canada catalogue numbers. We will begin providing the required numbers when our system is back online April 17th, 2015. Should your request be urgent, we ask that you please contact us directly. Thank you for your patience and understanding during this short transition.

The Depository Services Program (DSP) is responsible for assigning ISBNs to all book-like products (monographic or non-serial publications) published by the Government of Canada. The DSP also assigns Government of Canada Catalogue Numbers to all Government of Canada publications, both monographic and serial. Publications are defined as all products, regardless of publishing medium, containing information for public consumption or for limited circulation. The application of these unique identifiers is mandatory under the Communications Policy of the Government of Canada.

More information is available on: