Generally speaking, you are in a large truck’s blind spot if you:

Cannot see the truck driver in the truck’s side mirror.
Drive in the lane next to the truck.
Drive close to the large truck’s left front wheel.
Follow no closer than ten feet behind the large truck.
Explanation

When you cannot see the truck driver in their side mirror, they cannot see you. This is because of the large blind spots, or “No Zones” that trucks have on both sides. These blind spots are much larger than the blind spots of a car and can cause a truck driver to not be able to see what is in front of them. So if you are too close to a truck and cannot see the truck driver in their side mirror, they likely cannot see you either. This is why it is important to stay out of the truck’s blind spot and never follow too closely.

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