US proposes tougher tank car rules, other standards to prevent oil train fires
July 23, 2014 at 10:39 AM EDT
Thousands of older rail tank cars that carry crude oil would be phased out within two years under regulations proposed Wednesday in response to a series of fiery train crashes over the past year, including a runaway oil train that exploded in the Quebec town of Lac-Megantic, killing 47 people.