Thanks for the questions and the comments. Those are exactly the kinds of things that we hear about on a regular basis.
The National Energy Board is the regulator that would establish, by looking at the evidence base, the circumstances, and the elements of a pipeline, where the shut-off valves should be and what the conditions of the shut-off valves might be related to the environment, the habitat, or the land base where you find the pipeline.
Obviously, they do risk-based auditing and inspections, so older pipelines get more attention, as do pipelines that have had incidents previously and pipelines that might be around areas that are more sensitive. You'll perhaps be able to ask them when they're here about some of those things more definitively, but certainly from our perspective, setting the legal frame that allows them to do that is what we're responsible for.