PHMSA is extending the deadline for comments due today (March 21, 2017) on the Advance Notice of Proposed Rulemaking (ANPRM) issued on January 18, 2017. The new deadline for comments is May 19, 2017. The ANPRM was issued in response to a petition for rulemaking filed by state of New York, enquiring about risks posed by transport of petroleum by means other than pipeline, specifically by rail, and whether to establish vapor pressure standards for the transportation of crude oil. The ANPRM requested comments on whether a national standard should be developed for vapor pressure of crude oil, including the potential safety benefits and costs of establishing a standard. The intent of the ANPRM is to evaluate measures to reduce risk of fire and explosion in non-pipeline transport of crude oil such as a national vapor pressure standard and, if so, adopt appropriate threshold recommendations for the standard.