OMAHA, Neb. (AP) – In the chaos after a Norfolk Southern train careened off the tracks and caught fire in eastern Ohio in February, it took roughly 45 minutes for firefighters to learn exactly which chemicals were involved.

Now the railroad industry is trying to ensure that never happens again.

Ever since that Feb. 3 derailment prompted concerns about rail safety nationwide, the major railroads have redoubled their efforts to make sure that more and more first responders can immediately look up the contents of any freight train.

This week, the two counties that h

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