So it's more on the training side.
I guess the only other question I have at this point is in terms of propane. I think it was you, Mr. Stewart, who mentioned this, but I would ask you and Mr. Mouw if you have anything to add to it as well. We've heard before about the issue of parking propane vehicles in underground parking garages and that kind of thing. I think Mr. Stewart mentioned there are some barriers that exist there. Can either or both of you tell us a little bit more about what those barriers are? Obviously, if you have safety issues, do you have evidence you can provide us that they are safe to be in underground garages? If so, could you share that with us? Also, could you explain to us the how and why of what those barriers are and how they would be removed?