The Biden administration quietly rescinded a Trump-era regulation allowing companies to transport liquefied natural gas (LNG) via rail in a victory for environmental groups. In a federal filing Friday ahead of the holiday weekend, the Department of Transportation's Pipeline and Hazardous Materials Safety Administration (PHMSA) formally suspended the 2020 authorization of LNG transportation in rail tank cars. The rule will remain in effect until either a permanent rule regarding LNG rail tank car transportation is proposed and finalized — a process that may take several months — or June 30, 2025.