A moving traffic violation is a situation where a traffic law is violated by a vehicle in motion. Driving over the speed limit is an example of a moving violation, as is driving while intoxicated (DWI). Driving through a red traffic light or through a stop sign are also instances of moving traffic violations. Non-moving traffic violations, on the other hand, most frequently pertain to parking violations or faulty equipment. Parking in a no-parking zone, for example, is a non-moving violation as is parking in front of a fire hydrant or in front of an expired parking meter. Excessive noise from a car’s muffler can also be considered a non-moving traffic violation.