The approach taken with respect to natural gas and propane used for heating and cooling buildings is the refundable credit. There is an acceptance by the government that the money is to be returned directly. The question is how, and what principle to use to support that return.
My point is this: If one approach is used to return the charge on motor fuels, which is the exemption approach, that doesn't necessarily mean that the same approach should be used across the board. That's the general point.
Why? It's because there is a desire to somehow maintain a certain degree of a price signal. I think that's why this approach has been used.