Comments sought on new crude oil tank car regulations. The Pipeline and Hazardous Materials Safety Administration (“PHMSA”) announced that it would take public comments on petitions seeking new crude oil rail car integrity standards, citing a July explosion in Quebec when an unattended train derailed. The train was hauling several DOT-111 crude oil tank cars from the Bakken Shale play. Among the options PHMSA is considering will be to make the American Association of Railroads’ new industry standards for DOT-111 cars mandatory. Companies have been building DOT-111 cars to that standard since October 2011. It will also take comment on requiring modifications to older DOT-111 cars. The American Association of Railroads has publicly opposed requiring the modifications, calling them technically infeasible and costing over $1 billion. The comment period will close in 60 days.