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Government of Canada Catalogue Numbers are assigned to all Government of Canada (GC) publications by the Depository Services Program (DSP) upon application from the author department. If the publication is not a serial publication, then it will be assigned an ISBN as well.
All government organizations subject to the Treasury Board Communication Policy must apply GC Catalogue numbers to their publications.
GC catalogue numbers are used to uniquely identify publications by Canadian government organizations for both sales and free distribution. They also provide a useful link between publications published in multiple formats (print, CD-ROM, Internet).
A typical GC Catalogue Number is an alpha-numeric text string taking the form:
A new GC catalogue number is required for each new individual publication, including:
A GC catalogue number is not required for reprinted publications. For reprints, author departments should use the catalogue number that appeared in the original version.
If the publication is a book or book-like publication (monograph), then the most common place for a Catalogue Number to appear is on the verso of the title page, underneath the copyright line and above the ISBN. For example:
© Her Majesty the Queen in Right of Canada, 2001
Cat. No. En40-568/2001E
However if this is not possible or appropriate, the most important factor is that the Catalogue Number and ISBN are printed accurately and legibly in the publication. The actual location can vary, for example they can appear on the face of a CD-ROM, or on the back of a kit or folder.
Issues of a periodical are given catalogue numbers, but this number may appear on individual issues at the discretion of the author department. If the Catalogue Number is to appear, the best approach is to include it in the publication "masthead" information.