Passing heavy vehicles — Wyoming Permit Test

When passing a heavy vehicle, keep a steady speed and make sure you can see both of its headlights and its entire cab in your rearview mirror before pulling back in.

A truck needs a long space to stop, and cutting in too soon then slowing leaves its driver no room.

Because it takes longer to pass a large vehicle, you should maintain a consistent speed when passing and be sure you can see both headlights and the entire cab of the truck in your rearview mirror before pulling back into your lane.

Take a heavy vehicle's total length into account when passing; some rigs with double trailers can be as much as 100 feet long.

A long rig takes much more road to pass than a car, so you need far more clear space ahead.

Some can be as much as 100 feet long.

Pass a truck with enough speed to avoid lingering in its blind spot, called the No-Zone; a car set only slightly faster than the truck stays where the driver cannot see it.

If something blocks the road, a truck driver who cannot see you may swerve right into your car.

Be sure to pass with sufficient speed to avoid loitering in the truck driver's blind spot (No-Zone) and simply taking too long to pass.

After passing a truck, when may you pull back into its lane?

When both headlights show in your mirror. A truck needs a long space to stop, and cutting in too soon then slowing leaves its driver no room. Wyoming Rules of the Road Driver License Manual, p.57: “Because it takes longer to pass a large vehicle, you should maintain a consistent speed when passing and be sure you can see both headlights and the entire cab of the truck in your rearview mirror before pulling back into your lane.”