Actually, there are requirements for flying in Canadian  trans-oceanic airspace. You need to fly IFR, and you might need an HF radio depending on the route:<p><a href="https:&#x2F;&#x2F;www.copanational.org&#x2F;CC-42.cfm" rel="nofollow">https:&#x2F;&#x2F;www.copanational.org&#x2F;CC-42.cfm</a><p>You also have to follow the usual rules about having liferafts on board, etc.