Two industry associations representing virtually all North American Railroads have called for the USDOT's Pipeline and Hazardous Materials Safety Administration (PHMSA) to require tank cars carrying flammable liquids be built to more stringent standards, or be upgraded for existing tank cars. The Association of American Railroads (AAR), and the American Shortline and Regional Railroad Association (ASLRRA), jointly tendered comments to the PHMSA today. A copy of the joint filing is attached here.
Despite the excellent overall safety record of haz mat transport by rail, the Associations cited the recent Lac Megantic catastrophe as motivation for the industry to reevaluate tank car standards, which in fact had been increased just in 2011. Among the proposals AAR and ASLRRA make are to require newly built tank cars carrying flammable liquids to have steel jackets around the tank car, thermal protection, full car-height head shields, and high flow capacity pressure release valves. In addition to newly built cars, the comments call for the retrofit of cars built since 2011, and before, to comply with any new construction standards, and to phase out older cars that cannot be retrofitted.
The PHMSA docket at issue is PHMSA-2012-0082 - "Hazardous Materials: Rail Petitions and Recommendations to Improve the Safety of Rail Tank Car Transportation."
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