Commercial Driver License Restrictions. What are Restriction Codes? Restrictions may be added to Commercial Driver Licenses/Permits based upon the type of vehicle and equipment that the driver uses for the CDL Skills Test.

The state of Texas may place restrictions on your license to make sure the roads are safe for everyone – including you. Motor vehicles always have the potential to be dangerous, and if the DPS identifies you as posing a unique risk in the kind of driving you do, they may decide that your license should be restricted.

Not to worry, though – most restrictions are temporary, and can be lifted if you follow the appropriate steps. In addition, they often apply to only a narrow range of the driving a license holder does, so they don’t generally affect the average commuter. Many apply only to commercial drivers.

The most common type of license restriction in the state of Texas is aimed at young drivers. It’s part of the graduated licensing program designed to reduce teen driving fatalities – the leading cause of death in that age group. Given the danger, Texas law singles out young drivers for a class B restriction.

Provisional licenses have many of the same conditions as the class B, although they are lifted automatically after a year. This means that new drivers must observe a curfew (no driving between midnight and 5 a.m.), they can’t carry more than one passenger under the age of 21 unless it’s an immediate family member, and they cannot use cellphones in any capacity while driving.

Restriction Codes Are as Follows:

1. A: With corrective lenses
2. B: A licensed driver 21 years of age or older must be in the front seat
3. C: Daytime only
4. D: Not to exceed 45 MPH
5. E: No expressway driving
6. F: Must hold valid learners permit until (date)
7. I M/C: Not to exceed 250 cc
8. J: Licensed M/C Operator age 21 or over in sight
9. K: Moped
10. L: Vehicle w/o air breaks – applies to vehicles requiring CDL
11. M: CDL Intrastate Commerce only
12. N: Ignition interlock required
13. O: Occupational license
14. P: Stated on License
15. Q: Licensed Operator in Front Seat (LOFS) 21 or over vehicle above Class B
16. R: LOFS 21 or over vehicle above Class C
17. S: Outside mirror or hearing aid
18. T: Automatic transmission
19. U: Applicable prosthetic devices
20. V: Applicable vehicle devices
21. W: Power steering

How to Remove Restrictions from Your Drivers License

Each category of restriction has its own set of conditions for removal. The youth condition can only be satisfied by the passage of time, and people with permanent disabilities will have to adjust to a restricted license. But others can satisfy the conditions with a little effort and some paperwork.

Restriction T, for example – which requires an automatic transmission – can be lifted if the driver passes the Texas drivers test with proper use of the clutch. Similarly, if older drivers are able to hone their skills with a drivers ed course, they may be able to remove restrictions such as D or E from their licenses by passing the test and becoming re-authorized by the DPS.

In order to drive certain types of vehicles with a commercial driver's license (CDL), it may be necessary to add an endorsement or remove a restriction. In either case, additional testing and fees will be required.

CDL Endorsements

After you have satisfied the requirements for a Class A, B, or C commercial driver's license, you may also need to pass additional written and road driving tests to operate special types of commercial motor vehicles.

Below is a list of the federal endorsement codes you may need in addition to your CDL and what tests will be required by your state.

• H Endorsement: Required for vehicles containing hazardous materials.
  • Requires a written knowledge test.
• N Endorsement: Permits you to operate tank vehicles.
  • Requires an additional written knowledge test.
• P Endorsement: Allows you to operate a vehicle that carries over a specified number of passengers (the exact number may depend on your state).
  • Requires written knowledgeANDroad skills tests.
• S Endorsement: Permits theoperation of a school bus.
  • Requires written knowledge AND road skills tests.
  • ALSO requires separate application forms, fees, and background checks. See our guide to passenger and school bus endorsements.
• T Endorsement: Allows you to tow a double or triple trailer.
  • Requires an additional knowledge test.
• X Endorsement: Combination endorsement for HAZMAT and tank vehicles.
  • Requires a written knowledge test.

Oklahoma Driver's License Class Codes

Check with your state to determine the exact process required for adding an endorsement to your commercial driver license.

CDL Restrictions

A restriction placed on your commercial driver's license may keep you from operating certain types of vehicles.

Common federal CDL restriction codes are listed below:

• E Restriction: Prohibits you from operating vehicles with a manual transmission.
  • Occurs when you take your skills test in a CMV with automatic transmission.
• L Restriction: Prohibitsoperation of a vehicle containing a full air brake system.
  • Occurs if you:
    • Fail the Air Brakes Knowledge Test.
    • Incorrectly identify air brake system components.
    • Fail to properly conduct an air brakes system check.
    • Take the road skill test in a CMV lacking a full air brake system.
• Z Restriction: Also prohibits you from driving a CMV with full air brakes.
  • Occurs if you tested in a vehicle with an air over hydraulic brake system.
• M Restriction: Restricts you to operating a Class B or C passenger vehicle/school bus ONLY.
  • Occurs if you possess a Class A CDL, but earned your passenger/school bus endorsement driving a Class B vehicle.
• N Restriction: Restricts you to operating a Class C passenger vehicle/school bus ONLY.
  • Occurs when you possess a Class B CDL, but earned your passenger/school bus endorsement driving a Class C vehicle.
• Restriction: Prohibits you from driving any Class A vehicle that has a fifth wheel connection.
  • Occurs when you take your skills test in a CMV that has a non-fifth wheel connection, such as a pintle hook.
• V Restriction: Indicates that a medical variance has been reported by the Federal Motor Carrier Safety Administration (FMCSA).
  • This may occur, for instance, if you have a vision or diabetic waiver issued by the FMCSA.

Depending on your state, there may be additional restriction codes that can be placed on your CDL license.

Oklahoma Drivers License Restriction 1

Removing a CDL Restriction

Nm Drivers License Restriction Codes

If you wish to remove a restriction from your CDL, you may be required to complete or provide:

Oklahoma Drivers License Restrictions List

• Additional written knowledge tests.
• Additional road skills tests.
  • This includes testing in a vehicle meeting the requirements indicated by the restriction.
• Further medical evaluations.
• Payment of additional fees.

Oklahoma Drivers License Restrictions Code 29

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