Three to six second following rule — Arizona Permit Test

Three to six second following rule on the Arizona permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Use the 3-6 second rule to judge whether you have enough cushion between you and the vehicle you are following.

Too close, and when the car ahead stops short you hit it before your foot is on the brake.

You can use the “3-6 second” rule to determine if you have enough cushion between you and the vehicle you are following.

Arizona Driver License Manual and Customer Service Guide, p.25

If you pass the fixed point before you finish counting, you are following too closely.

Reaching the sign before the count ends means you would reach the car ahead before you could stop.

If you pass the same point before you finish counting, you are following too closely.

Arizona Driver License Manual and Customer Service Guide, p.25

Create a space cushion around you by staying in the middle of your lane.

Hugging a lane line leaves no room to move when a car drifts toward you or a door opens.

Create a space cushion around you by staying in the middle of your lane.

Arizona Driver License Manual and Customer Service Guide, p.25

Most rear-end crashes are caused by following too closely.

The driver behind has the least time to react. A short gap turns a hard stop ahead into a crash.

Most rear end crashes are caused by following too closely.

Arizona Driver License Manual and Customer Service Guide, p.25

At high speeds, the distance your vehicle travels while you react to a problem is greater, and your margin for error is less.

In the second it takes to see and brake, a fast car covers much more road than a slow one.

At high speeds, the distance your vehicle travels while you are reacting to a problem is greater - and your margin for error is less.

Arizona Driver License Manual and Customer Service Guide, p.25

On the test

What rule does the manual give for judging your following distance?

3-6 seconds. Too close, and when the car ahead stops short you hit it before your foot is on the brake. Arizona Driver License Manual and Customer Service Guide, p.25: “You can use the “3-6 second” rule to determine if you have enough cushion between you and the vehicle you are following.”

How this works

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Where these come from

Every rule here is checked against Arizona Driver License Manual and Customer Service Guide, published by the Arizona Department of Transportation, and against the state code itself. Last checked 2026-09-28.