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This rulemaking expanded the applicability of comprehensive oil spill response plans (OSRP) based on thresholds of liquid petroleum oil that apply to an entire train consist. The rulemaking also required railroads to share information about high-hazard flammable train operations with state and tribal emergency response commissions to improve community preparedness in accordance with the Fixing America's Surface Transportation Act of 2015 (FAST Act). Finally, the rulemaking incorporated by reference an initial boiling point test for flammable liquids for better consistency with the American National Standards Institute/American Petroleum Institute Recommend Practices 3000, Classifying and Loading of Crude Oil into Rail Tank Cars,” First Edition, September 2014.