Speed limits when none posted — Arizona Permit Test

Speed limits when none posted on the Arizona permit test — 6 rules, each with the reason behind it and a question on it while it is fresh.

The rules

When no limit is posted, the speed limit in any business or residential district is 25 mph.

Homes and shops mean children, parked cars and people stepping out. A few miles per hour faster turns a close call into a hit.

25 mph in any business or residential district.

Arizona Driver License Manual and Customer Service Guide, p.40

When no limit is posted, the speed limit when approaching a school crosswalk is 15 mph.

Children at a crossing do not judge traffic well. At a crawl you can stop for one who runs out.

15 mph when approaching a school crosswalk.

Arizona Driver License Manual and Customer Service Guide, p.40

When no limit is posted, the speed limit on open highways or city freeways is 55 mph.

Guessing a higher limit on a city freeway is an easy ticket and leaves you too fast for heavy traffic.

55 mph on open highways or city freeways.

Arizona Driver License Manual and Customer Service Guide, p.40

When no limit is posted, the speed limit on designated open highways is 65 mph.

Only highways chosen for it get the higher limit. Assuming it everywhere puts you over the limit on the rest.

65 mph on designated open highways.

Arizona Driver License Manual and Customer Service Guide, p.40

When no limit is posted, the speed limit on rural freeways is 75 mph.

The top limit belongs to rural freeways alone. Carrying it into a city puts you far over the limit.

75 mph on rural freeways. White speed limit signs with black letters are regulatory signs and indicate the maximum speed you can legally go.

Arizona Driver License Manual and Customer Service Guide, p.40

Advisory speed signs with black letters on orange show a recommended safe speed for a curve, grade or other special condition at that spot.

The posted limit is set for a straight, dry road. A sharp curve can throw a car off the road well below it.

Orange signs with black letters indicate recommended safe speeds due to the curvature or grade of the road or other special conditions at that location.

Arizona Driver License Manual and Customer Service Guide, p.40

On the test

When no limit is posted, what is the speed limit in a business or residential district?

25 mph. Homes and shops mean children, parked cars and people stepping out. A few miles per hour faster turns a close call into a hit. Arizona Driver License Manual and Customer Service Guide, p.40: “25 mph in any business or residential district.”

How this works

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You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.

Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.

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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.