A Trump-era rule allowing railroads to haul highly flammable liquefied natural gas will now be formally put on hold to allow more time to study the safety concerns related to transporting that fuel and other substances like hydrogen that must be kept at extremely low temperatures when they are shipped, regulators announced Thursday.
Right after it was announced in the summer of 2020, the rule was challenged in court by a number of environmental groups and 14 states. The uncertainty about the rule on transporting the fuel known as LNG kept railroads from shipping it. The Pipelines and Hazardous Materials Safety Administration says no one has ever even ordered one of the specially fortified rail cars that would have been required to ship LNG, and several hundred of those cars that would each take at least 18 months to build would likely be needed to make the idea viable.
