“Rolling Coal” is a term used for the added emissions that can be emitted from a diesel powered vehicle. This process is achieved through retrofitting the vehicle, which typically costs between a few hundred and several thousand dollars. The practice of “rolling coal” makes it possible for drivers to emit this black smoke on command, leaving drivers and pedestrians covered in a cloud of soot that is completely unnecessary. For whatever reason these drivers get pleasure out of leaving others awash in their emissions, New Jersey has had enough and made it illegal.
