The Obama administration revised its proposal to prevent oil trains from catching fire in derailments, giving companies more time to upgrade their fleets but sticking with a requirement that new tank cars have thicker walls and better brakes. The changes, described by three people familiar with the proposal who asked not to be identified because the plan has not been made public, are in proposed regulations the U.S. Transportation Department sent to the White House last week for review prior to being released. The administration is revising safety standards after a series of oil-train accidents, including a 2013 disaster in Canada that killed 47 people when a runaway train derailed and blew up. Earlier this month a train carrying ethanol derailed and caught fire outside of Dubuque, Iowa. No one was hurt. Companies that own tank cars opposed the aggressive schedule for modifying cars in the DOT’s […]