Let them trucks roll.

Much to the happiness of many Prius owners, the EPA has now declared coal rolling illegal. To those unfamiliar with the term “rolling coal,” it’s when a truck driver approaches close to another vehicle, bicyclist, or pedestrian, and then purposely spews a huge cloud of black exhaust fumes at them. Coal rolling has become a growing trend and it is often done as a way of upsetting environmentalists. But as explained in a July 7 Talking Points Memo report, it is now against the law, according to an EPA official.

TPM staff spoke with Liz Purchia, the press secretary for the EPA, about the issue and Purchia told the site… “the short answer is this is illegal.”

Purchia cited a couple of paragraphs on the air enforcement page of the EPA’s website regarding the changes. The first paragraph read:

It is a violation of the [Clean Air Act] to manufacture, sell, or install a part for a motor vehicle that bypasses, defeats, or renders inoperative any emission control device. For example, computer software that alters diesel fuel injection timing is a defeat device. Defeat devices, which are often sold to enhance engine performance, work by disabling a vehicle’s emission controls, causing air pollution. As a result of EPA enforcement, some of the largest manufacturers of defeat devices have agreed to pay penalties and stop the sale of defeat devices.

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