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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

Hazardous Materials: Volatility of Unrefined Petroleum Products and Class 3 Materials

Advance notice of proposed rulemaking (ANPRM); Extension of comment period.

PHMSA is extending the comment period for an advance notice of proposed rulemaking that was published in the Federal Register on January 18, 2017. In response to stakeholder requests, the comment period will be extended for an additional 60 days, from March 20, 2017 to May 19, 2017.

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