VERDICT: False.
While it is true that in 2018 the Department of Transportation (DOT) withdrew a proposed rule requiring trains carrying certain dangerous chemicals to use electronically controlled pneumatic (ECP) brakes, this rule would not have applied to the train that derailed in East Palestine on February 3.
In addressing the train derailment on Tuesday, Buttigieg claimed, “We’re constrained by law on some areas of rail regulation,” and cited “the braking rule withdrawn by the Trump administration in 2018 because of a law passed by Congress in 2015.”