One thing republicans and democrats seem to agree on is that rolling coal needs to go.
The state of Maryland is looking to outlaw "rolling coal," following in the footsteps of New Jersey which outlawed the practice back in 2015. Autoweek dug up House Bill 11, which would make it illegal to for "a diesel–powered motor vehicle to emit certain clearly visible emissions onto another person or motor vehicle; providing for the application of this Act; and generally relating to a prohibition on the discharge of excess diesel–powered motor vehicle emissions." As expected there are a few exceptions to the rule.
Said exceptions are: a diesel-powered vehicle that discharges visible exhaust as the result of normal acceleration or towing, a commercial vehicle with a gross weight of 10,000 pounds or more and a construction vehicle operating at a construction site. If HB 11 passes it would go into effect October 1st, 2017. While some people may disagree about whether or not the government can tell people how to modify their cars, what everyone can agree on is that it isn't fun when someone rolls coal on you. It also looks pretty damn disgusting as well. Maryland's governor is a republican, which may mean some trouble for proponents of the bill. However, the New Jersey law was signed by a republican governor. Rollin' coal may turn out to be a bipartisan issue.