06-06-2017 20:48 via denver.cbslocal.com

New Law Aims To Stop Intentional Black Smoke From ‘Coal Rollers’

DENVER (CBS4)– A new law aims to stop so-called “coal rollers” from intentionally blasting black smoke into the air.
Some diesel truck owners are modifying their engines and disabling pollution controls so they can intentionally blast black smoke. It’s called “rolling coal” and now a new law in Colorado aims to stop it.
(credit: YouTube)
Coal rollers, as they call themselves, have posted videos online of souped-up diesels spewing clouds of black soot, making i
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