I'll ask my colleague to point to the provision, but there's a provision in the law that requires us to establish a registry, and then there's regulatory authority that gives us the authority to provide some rules around the registry. The point of the registry is to track all of the credits so we know the offset credits and surplus credits. Everybody who's in the output-based pricing system will have to register, and if you want to be selling offsets, you'll also have to register. So we and the public will be able to track the sales.
On May 8th, 2018. See this statement in context.