They already do have several, and maybe too many on the large emitter side, but we'll talk about that another time, perhaps.
Yes, there are other exemptions too, for certain types of agricultural fuels, but not all of them. I think someone was talking about propane for drying grain, but on the diesel side there are.... You could get the full list from the department, but there have been some exemptions already, and exemptions as well for certain remote communities in terms of energy sources.