Because of the extreme demand for propane, an emergency declaration is being issued for Iowa and several other Midwestern states by the Federal Motor Carrier Safety Administration, reports Radio Iowa. The emergency declaration means truckers hauling the propane don’t have to count the time they sit in line at a terminal against the hours they’re on the road transporting it. Some farmers have volunteered to delay drying their corn so deliveries can be made to homeowners and livestock producers who depend on the propane to keep themselves and their animals warm, the Iowa Propane Gas Association said.