Pipeline and Hazardous Materials Safety Administration December 5, 2022 – Federal Register Recent Federal Regulation Documents

PHMSA is publishing this notice to provide awareness and solicit comments on an application for a special permit currently under review by PHMSA in consultation with the Federal Railroad Administration. An applicant is seeking a special permit to authorize the transportation in commerce of cryogenic ethane in DOT-113C120W9 and DOT-113C120W tank cars via rail freight. PHMSA notes that the subject matter of the special permiti.e., transportation of cryogenic flammable liquids in rail tank carsraises issues similar to the transportation of Liquefied Natural Gas (LNG) by rail, a matter for which multiple rulemakings are currently pending at the agency. Therefore, PHMSA is providing an opportunity for public comment on the application.