Sure. And maybe the National Research Council can speak to that as well. With respect to incorporating requirements within the commercial code, there are two distinct codes for buildings. One is the national energy code for buildings, which applies to commercial and institutional buildings. The other one is the national building code, which is for the residential sector. So all of those considerations whether they're sector-specific or they are looked at in the context of those codes—
On February 6th, 2018. See this statement in context.