No, the insurance company wouldn't have to be a member of NIAC. NIAC is the approved insurer today. That was done many, many years ago, and they're the only approved insurer. But no, it wouldn't be necessary. If another insurance company came forward, had received approval by the Office of the Superintendent of Financial Institutions to provide insurance in Canada, and then subsequently put a submission to the minister, the minister could approve that company to provide nuclear liability insurance.
On December 6th, 2007. See this statement in context.