Okay.
For the average family, it's hard at this stage to adopt natural gas as a fuel source because of the absence of infrastructure. There are very few filling stations in Canada. I think there are one or two in Ottawa, for example. The home refuelling technology does not appear to be ready for mass use across the market. But for fleets, infrastructure becomes a smaller problem. The economies of scale make it more affordable, and that's why we saw Robert Trucking, for example, doing this.
How does Canada Post plan to use the buying power of its operation to take advantages of the price advantages that some alternative fuels offer over gasoline and diesel?