Under the Clean Air Act, commercial trucks, school buses, and vehicles in federal emissions testing areas still need regular inspections.

but who are perhaps unable or unwilling to sell their vehicles, have been turning to another way of expressing themselves: statement-making bumper stickers. Back To Top ...

Chicago city stickers are required for all motorbikes, cars and trucks that are driven, parked, leased or owned in the city. Credit: DNAinfo CHICAGO — The Office of the City Clerk is waiving vehicle ...

A Republican lawmaker from Colorado expressed shock at being told by Democratic colleagues that he had to remove a sticker supporting the Second Amendment from his laptop while in the state's ...

Here in auto-saturated Los Angeles, the bumper sticker has always been a healthy form of self-expression. But in recent years, they’ve become far weirder than your average tourist-trap souvenir ...