The U.S. Department of Transportation warned railroads that they must continue to notify states of large crude oil shipments after several states reported not getting updated information for as long as a year.
The department imposed the requirement in May 2014 following a series of fiery oil train derailments. It was designed to help state and local emergency officials assess their risk and training needs.
In spite of increased public concern about the derailments, railroads have opposed the public release of the oil train information by numerous states. Two companies sued Maryland in July 2014 to prevent the state from releasing the oil train data to McClatchy.