Provided that Gov. Locke signs the bill, that means that people littering with lit cigarettes, glass, nails, tacks, bottles, hypodermic needles or "raw human waste" will face up to a $500 fine.
Raw human waste may not seem like it would be high on the list of things to hurl out the window of a speeding car, but apparently it is. Youth litter crews, according to bill sponsor Dave Upthegrove, D-Des Moines, picked up thousands of so-called trucker bombs by Washington's roadsides last year.
"Some truckers, in order to avoid losing valuable time by stopping at a rest area, often relive themselves in bottles and throw them by the side of the road," he explained.
The bill includes one other change: it removes the widely-ignored state requirement that drivers keep a litter bag in their cars.
"We are more concerned with what people throw out their windows, not what they do with the garbage inside their car," said Upthegrove.