The US Department of Transportation's (DOT) Pipeline and Hazardous Materials Safety Administration (PHMSA) is seeking public comment to further enhance the safe transportation of hazardous materials by rail tank cars, including the DOT 111 tank car, a type of nonpressure tank car commonly used in North America. PHMSA's Advance Notice of Proposed Rulemaking (ANPRM) reflects a collection of stakeholder input on rail car safety, including eight petitions for rulemaking and four National Transportation Safety Board recommendations. The agency is seeking public comment for 60 days on whether the proposals in the ANPRM would enhance safety, as well as general comments on the regulations that apply to transporting hazardous materials by rail. It also addresses operational issues that could limit or prevent derailments.
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