The National Transportation Safety Board (NTSB), attorneys general from 16 states and at least two U.S. senators have filed concerns about what they believe is a risk to public safety and the environment under a proposed rule that would allow trains to transport liquefied natural gas (LNG) in rail tank cars.
On the other side of the issue, the Association of American Railroads (AAR) and American Short-Line and Regional Railroad Association (ASLRRA) say that transporting LNG by rail would improve transportation safety because of the rail industry's "strong safety record" on a ton-mile basis for transporting hazardous materials.