Vapor Pressure Remains a Volatile Topic
On July 24, the Pipeline and Hazardous Materials Safety Administration (PHMSA) published an invitation to comment on a preemption application submitted by the States of North Dakota and Montana. The States’ application asks PHMSA to override vapor pressure limits for crude by rail imposed by the State of Washington. New Washington law, which became effective on July 28, 2019, prohibits loading or unloading crude oil from a rail car unless the vapor pressure is…