We looked at the types of traffic and the volumes of various products that are shipped into northern B.C. both for community resupply and industry resupply, and on that basis set the threshold. As my colleague mentioned, there's a very detailed study published on our website that gives quite a lot of analysis of the types of traffic and the types of ships that currently traverse and what they carry.
On October 19th, 2017. See this statement in context.