For mergers that are notifiable transactions pursuant to Part IX of the Competition Act, parties are required to provide:  • a list of the foreign competition authorities that have also been notified of the proposed transaction and  • the date on which each authority was notified.  In the case of non-notifiable transactions, parties often voluntarily identify for the Bureau any other jurisdiction that is reviewing the merger. In some cases, the Bureau will contact a foreign agency after learning about a merger investigation by another jurisdiction from publicly-available information. International notifications can also be useful in identifying multijurisdictional transactions and whether they are being reviewed in other jurisdictions or to commence cooperation.