SAFE PLACEMENT OF TRAIN CARS.

SEC. 111. SAFE PLACEMENT OF TRAIN CARS. The Secretary of Transportation shall conduct a study of existing practices regarding the placement of cars on trains, with particular attention to the placement of cars that carry hazardous materials. In conducting the study, the Secretary shall consider whether such placement practices increase the risk of derailment, hazardous materials spills, or tank ruptures or have any other adverse effect on safety. The results of the study shall be submitted to Congress within 1 year after the date of enactment of this Act.