August 7, 2014: (NPRM) HM-251: PHMSA Releases Final and Proposed Rules

Pipeline and Hazardous Materials Safety Administration published two proposed rulemakings relating to the transport of flammable liquids by rail cars. The NPRM, docket HM-251, defines high hazard flammable trains and proposed a several design and operational specifications. The ANPRM, docket HM-251 B, is seeking comments on proposals to extend the applicability of comprehensive oil spill response plans high hazard flammable trains (HHFT). Comments on both proposals will be accepted until September 30, 2014.
PHMSA-2014-0105 (HM-251B): Hazardous Materials: Oil Spill Response Plans for High-Hazard Flammable Trains

PHMSA-2012-0082 (HM-251): Hazardous Materials: Enhanced Tank Car Standards and Operational Controls for High-Hazard Flammable Trains