As a straightforward answer, number one, you have to define what it is. Operating on the definition that was used back around 2003 or so by the legislative committee in Newfoundland and Labrador as some assertion of actual jurisdiction that could be enforced against other states over fisheries beyond 200, no, it's not achievable at this point in time.
We are subject to the Law of the Sea Convention, which explicitly prohibits that, and we are subject to the compulsory dispute settlement procedure under that convention, which was not in place at the time of the Estai incident, which completely changes the picture on that.