License restriction codes — Oklahoma Permit Test

License restriction codes on the Oklahoma permit test — 9 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Restrictions on an Oklahoma license are listed as a code on the license and explained on the back of the license.

A driver or officer can check what each code means right there, without looking anything up.

Restrictions are listed as a code on your license and explained on the back of the license.

Oklahoma Driver Manual, p.14

Restriction code B means corrective lenses, for people who must wear glasses or contacts to meet the vision requirements.

A driver who needs glasses to pass the eye test cannot see the road safely without them.

For people who must wear glasses or contacts to meet the vision requirements.

Oklahoma Driver Manual, p.14

Restriction code F means a left outside rear vision mirror, for people with limited vision in the left eye or with limited hearing.

A driver who cannot see well on the left or cannot hear traffic needs another way to notice cars beside them.

F = Left outside rear vision mirror.

Oklahoma Driver Manual, p.14

Restriction code 4 means an automatic transmission, for people whose physical condition requires one to handle the vehicle safely.

Some drivers cannot work a clutch and gear shift safely, so they must drive a car that shifts for them.

4 = Automatic transmission.

Oklahoma Driver Manual, p.14

Restriction code 5 requires turn indicators and power steering or a steering knob, for people with limited use of either hand.

A driver with a weak hand needs equipment that lets one hand steer and signal safely.

5 = Turn indicators and power steering or steering knob.

Oklahoma Driver Manual, p.14

Restriction code 6 means food, fruit or candy within reach of the driver, for people with insulin-dependent diabetes.

Low blood sugar can make a driver confused or faint, and food within reach can stop it quickly.

6 = Food, fruit or candy within reach of the driver.

Oklahoma Driver Manual, p.14

Restriction code 7 means adequate artificial limbs.

A driver who has lost a limb must wear an artificial one that lets them work the controls.

7 = Adequate artificial limbs.

Oklahoma Driver Manual, p.14

Restriction code 8 means detailed restrictions on the license, any other special conditions that might be required.

Some drivers need a condition that no other code covers, so it is written out on the license itself.

8 = Detailed restrictions on license.

Oklahoma Driver Manual, p.14

Restriction code 9 means the driver must be accompanied by a licensed driver in the front seat, and it is for people learning to drive.

A beginner needs an experienced driver right beside them who can warn them and help in time.

For people learning to drive.

Oklahoma Driver Manual, p.14

On the test

Where is the meaning of a restriction code on your Oklahoma license explained?

On the back of the license. A driver or officer can check what each code means right there, without looking anything up. Oklahoma Driver Manual, p.14: “Restrictions are listed as a code on your license and explained on the back of the license.”

How this works

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Where these come from

Every rule here is checked against Oklahoma Driver Manual, published by the Oklahoma Office of Management and Enterprise Services, and against the state code itself. Last checked 2026-10-04.