Yes, the 2012 changes made it possible to make new regulations that exempt specific industries under subsection 36(3). Those regulations have come into force since then, particularly for waste water effluent regulations, for sewage treatment plants. That's why there was a lot of confusion around whether Montreal was able to release sewage into the St. Lawrence and whose responsibility it was—also under nuclear power—and there are others who were able to apply for those exemptions.
The changes were made in 2012 to allow for specific industries to apply under the regulation to make exemptions for their industry, and they've been taking advantage of it.
Second, it has changed who has the authority to do it. For example, now the provinces can apply for what's called—