Quote Originally Posted by quickdodgeŽ
It's called Pre-Pass. Some larger trucking companies pay a monthly fee and it kind of gives them leeway to bypass the scales. The company I work for does this. The weigh station has the option to "zap" us to come in and be weighed. The Pre-Pass is a little blue box that's mounted on the windshield. It has a red and green light. If the officer at the station "zaps" us and the light is green, we can keep on trucking. If the red light comes on, we have to go in. About a half mile before the station, you'll see a box hanging out over the freeway with a camera mounted in it. That's the "zapper." They take pictures of the trucks as they pass and determine if they want to pull us in or not. Later, QD.
I gotcha, Ive seen the boxes hanging over the road before and figured they had something to do with if a truck passed without stopping. Thanks