Let me start.
First of all, it's not dependent, because we don't have a product; as a result, the number of conversion vehicles in Canada, as I said, is minuscule compared to the worldwide number of natural gas vehicles.
Clearly, if you look at the jurisdictions—and I think that's one of the things NRCan will be looking at—in the U.S. you'll see state incentives and federal incentives. President Obama just brought up the fact that there will be incentives for natural gas vehicles. Also, there are incentives in Italy, and so forth. As in the U.S., that was really done to incent the conversion to natural gas for environmental reasons and to utilize domestic supply.
We don't have the excise tax drifting to consumer adoption right now. Ed was talking about how good the economics are, and that will come to the foreground once there are more OEM vehicles, so we would say you should not excise the transportation of natural gas or propane just yet, not until you get an industry.
What you're looking at trying to do is spawn a transportation industry that would spur development in manufacturing of natural gas vehicles, whether it's in Ontario or other provinces. That would be an incentive to the OEMs to start producing natural gas vehicles.