ISBN and ISSN FAQs and Request Forms

The Legislative Library assigns ISBNs (International Standard Book Numbers) and ISSNs (International Standard Serial Numbers) to Ontario government publications on behalf of Library and Archives Canada.  These numbers are used to quickly and efficiently identify, order, distribute and retrieve publications.


Due to the high volume of ISBN and ISSN requests being received staff of the Legislative Library have created these FAQs.  Links to further information on ISBNs and ISSNs are included in these answers. Should you have any further questions, please contact us at

Frequently asked questions about ISBN

Frequently asked questions about ISSN

ISBN and ISSN Request Forms

Please complete the appropriate form and send it to

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ISBN Request Form for Ontario Government Documents

ISSN Request Form for Ontario Government Documents