TPM LiveWire
Purchia pointed to two paragraphs on the air enforcement page of the EPA’s website. One paragraph said:
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…
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