Overall, just so that everyone understands, we are the only freight industry, transportation-wise, that's regulated for carbon emissions, so all of our equipment is currently regulated for carbon emissions. We've had a first round; we have a second round coming. We've supported that issue.
Our concern with the carbon tax, to the point someone asked me earlier about local carbon fuels, is that if we price a commodity that we don't have an alternative to shift from, it goes to the point of what the purpose of the public policy is. In our case, one would say that we need be more fuel-efficient. Fuel is either the first or the second leading cost for a trucking company, so fleets are vigilant about fuel consumption. With regard to carbon emissions from trucks, it's all related to fuel efficiency.
The one ask our industry does have is that if we are going to be taxed on the fuel and we don't have a policy alternative, and we already are paying higher prices for equipment based on carbon pricing, we'd like to see that money come back to us in terms of an incentive program to once again reinvest in our equipment to gain even more fuel efficiency.