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DOT/PHMSA RIN: 2137-AF40 Publication ID: Spring 2020 
Title: Hazardous Materials: Liquefied Natural Gas by Rail 

Liquefied natural gas (LNG) is a critical energy resource for the 21st century. Currently, the Hazardous Materials Regulations (HMR) do not authorize the bulk transport of LNG in rail tank cars. PHMSA, in collaboration with the Federal Railroad Administration, believes this is a potential area for industry innovation to support infrastructure development while maintaining a high level of safety. This deregulatory rulemaking action develops a framework for the safe transport of LNG in rail tank cars.

Agency: Department of Transportation(DOT)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
EO 13771 Designation: Deregulatory 
CFR Citation: 49 CFR 172    49 CFR 173    49 CFR 174    49 CFR 179   
Legal Authority: 49 U.S.C. 5101 et seq.   
Legal Deadline:
Action Source Description Date
NPRM  Statutory  Executive Order13868 section 4(b) to publish NPRM no later than 100 day after order.  07/19/2019 
Final  Statutory  Executive Order 13868 section 4(b) to publish Final Rule no later than 13 months after order.  05/10/2020 
Action Date FR Cite
NPRM  10/24/2019  84 FR 56964   
NPRM Comment Period End  12/23/2019 
NPRM Comment Period Extended  12/23/2019  84 FR 70491   
NPRM Comment Period Extended End  01/13/2020 
Final Rule  06/00/2020 
Additional Information: hm-264
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Undetermined 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:   Public Comment URL:  
RIN Data Printed in the FR: No 
Agency Contact:
Michael Ciccarone
Transportation Specialist
Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue SE,
Washington, DC 20590
Phone:202 366-8553