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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

General

Legacy ID
21

Pending Hazardous Materials (Hazmat) Interpretations

Pending interpretation letters that are under review by the Office of Hazardous Materials Safety are shown in the table below. To view the interpretation request document, click “View” for the corresponding interpretation. To submit comments on an interpretation under review, click the “Submit Comment” link for the corresponding interpretation. Finally, comment submissions will be accepted for 30 days after the pending interpretation letter is posted.

Pending Pipeline Interpretations

Pipeline operators and other stakeholders may request a written regulatory interpretation pursuant to 49 CFR 190.11(b). PHMSA makes available online each incoming interpretation request and allows for the submission of public comment. Before issuing a written interpretation, PHMSA will consider comments received on or before the comment closing date. Comments will not be responded to directly. Any comments received after the closing date will be considered if practicable.

Real-Time Train Consist Information

The Real-Time Train Consist Information Rule requires railroads that carry hazardous materials to generate and maintain certain information regarding hazardous materials in rail transportation in electronic form and provide to authorized first responders, emergency response officials, and law...