All persons operating a motor vehicle on any public street or highway must hold a valid driver license or instruction permit. The Division of Motor Vehicles (DMV) administers the required physical, vision, physical aptitude, written, and driving tests. Applicants for a driver license, identification card, or instruction permit must provide proof of age, identity, and lawful presence in the United States (see the Real ID Act subsection for more information on this requirement). Driver licenses are categorized by vehicle type and by age group. Vehicle type licenses include: personal/passenger, motorcycle, and commercial. Age group licenses include adult and minor. Visit the DMV's website for more information on driver licenses. Use this map of state DMVs to find the DMV closest to you. DMV appointments for nearly all locations may be scheduled online.

Colorado driver license previous type n. An applicant must be 18 years of age or older. A Class A or Class B license, or a Class C license with endorsements for double or triple trailers, buses, tank trucks, or hazardous materials is a commercial license. Colorado Driver License numbers are just numbers, your program will not allow me to continue without entering letters. Please help Please enter the license number and use any numbers and/or letters but do not enter any special characters such as - or. or spaces. All drivers of commercial vehicles in North Dakota must possess a valid operator’s license for the type. Application for owner operator. Truck Driver Concrete Mixing Salary. Code of Colorado Regulations. Evidence of a previous Colorado driver's license. The determination is based on the type of organization and its driver selection.

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Detailed list of all Colorado CDL Classification descriptions. Colorado CDL Endorsement Codes. Colorado CDL Restriction Codes. Free Info.

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Colorado CDL Classification Codes
Colorado CDL Endorsement Codes
Colorado CDL Restriction Codes
  • Colorado Class A CDL In most states, this license allows the driver to operate any vehicle with a semi-trailer or trailer with two or more axles. This also includes any combination of vehicles with a gross vehicle weight rating (GVWR) greater than 26,000 pounds (provided that the GVWR of the towed vehicle is in excess of 10,000 pounds) under the following conditions. Prepare for the Colorado Class A CDL written tests.
    • For drivers towing trailers with more than 10,000 pounds of GVWR.
    • Allows the holder to operate Class B and C vehicles.
    • Drivers may be able to operate tractor-trailers, truck and trailer combinations, double and triple trailers, tractor-trailer buses, tanker vehicles, livestock carriers, and flatbeds. Common careers for holders include heavy truck drivers, dispatchers, local drivers, couriers, and bus drivers.
    You must possess appropriate endorsements based upon the loads you carry.
  • Colorado Class B CDL - This license allows the driver to operate any vehicle with a GVWR greater than 26,000 pounds, as well as any vehicle towing a trailer that does not exceed a GVWR of 10,000 pounds under the following conditions. Prepare for the Colorado Class B CDL written tests.
    • For drivers towing trailers with less than 10,000 pounds of GVWR.
    • Holder can operate Class C vehicles, but not Class A vehicles.
    • Drivers may be able to operate straight trucks, box trucks (like delivery trucks), large buses (such as school buses and city buses, and tourist buses), and dump trucks with small trailers.
    You must possess appropriate endorsements based upon the loads you carry.
  • Colorado Class C CDL - This license is for vehicles that do not exceed 26,000 pounds and otherwise do not require a CDL except when you need a CDL to attach an endorsement to under the following conditions.
    • When driving a vehicle designed to carry 16 or more passengers (including the driver) with a GVWR that does not exceed 26,000 pounds, you will need a Class C CDL with the Passenger Vehicles Endorsement (P). Prepare for the Colorado Class C CDL Passenger Bus written tests.
    • When driving a school bus with a GVWR that does not exceed 26,000 pounds, you will need a Class C CDL with the Passenger Vehicles Endorsement (P) AND School Bus Edorsement (S). Prepare for the Colorado Class C CDL School Bus written tests.
    • When carrying Hazardous Materials requiring placarding (when GVWR does not exceed 26,000 pounds), you will need a Class C CDL with the Hazardous Materials Endorsement (H). Prepare for the Colorado Class C CDL Hazmat written tests.
    • When driving a vehicle with a tank exceeding 1000 gallons (when GVWR does not exceed 26,000 pounds), you will need a Class C CDL with the Tank Vehicle (T) Endorsement. Prepare for the Colorado Class C CDL Tank Vehicle written tests.

CO CDL Endorsement Codes and Descriptions

  • T - Colorado Double/Triple Trailers Endorsement (Knowledge test only)
    • Prepare for the Colorado Double/Triple Trailers Endorsement CDL written tests
  • P - Colorado Passenger Endorsement (Knowledge and Skills Tests)
    • Prepare for the Colorado Passenger Endorsement CDL written tests
  • N - Colorado Tank Vehicle Endorsement (Knowledge test only)
    • Prepare for the Colorado Tank Vehicle Endorsement CDL written tests
  • H - Colorado Hazardous Materials Endorsement (Knowledge test only)
    • Prepare for the Colorado Hazardous Materials Endorsement CDL written tests
  • X - Combination of tank vehicle and hazardous materials endorsements (Knowledge test only)
    • Prepare for the Colorado Combination of Tank Vehicle and Hazardous Materials Endorsement 'X' CDL written tests
  • S - Colorado School Bus Endorsement (Knowledge and Skills Tests)
    • Prepare for the Colorado School Bus Endorsement CDL written tests
  • W - Tow truck. (Written Test) in New York State
T, P, S, N, H and X are Federal endorsements. Any other endorsements have been promulgated at the State level. i.e. New York DMV requires a 'W' endorsement to legally operate a tow truck in New York. States may have a more restrictive category for a class of license, or have additional codes for endorsements or restrictions on CDLs that are not mentioned in the Federal regulations, as long as these items are fully explained on the license document. Check your specific Colorado CDL Information for details. Colorado driver

Colorado CLP Endorsements - Only 3 endorsements are allowed on the Colorado CLP

  • P - Colorado Passenger Vehicle Endorsement: A Colorado CLP holder with a 'P' endorsement is prohibited from operating a CMV carrying passengers, other than Federal/state auditors and inspectors, test examiners, other trainees, and the CDL holder accompanying the Colorado CLP holder as prescribed by 49CFR383.25(a)(1).
  • S - Colorado School Bus Endorsement: A Colorado CLP holder with an 'S' endorsement is prohibited from operating a school with passengers, other than Federal/state auditors and inspectors, test examiners, other trainees, and the CDL holder accompanying the Colorado CLP holder as prescribed by 49CFR383.25(a)(1).
  • N - Colorado Tank Vehicle Endorsement: A Colorado CLP holder with an 'N' endorsement may only operate an empty tank vehicle, and is prohibited from operating any tank vehicle that previously contained hazardous materials that have not been purged of any residue.
  • L - If the driver does not pass the Air Brakes Knowledge Test, does not correctly identify the air brake system components, does not properly conduct an air brake systems check, or does not take the Skills test in a vehicle with a full air brake system, the driver must have an 'L' no full air brake restriction placed on their license.
  • Z - If the driver takes the test in a vehicle with an air over hydraulic brake system, then they will have a 'Z' no full air brake restriction placed on their license. In either case the driver is not authorized to operate a CMV equipped with full air brakes.
  • E - If the driver takes the Skills Test in a vehicle that has an automatic transmission, then an 'E' no manual transmission restriction is placed on their license.
  • O - If the driver takes the Skills Test in a Class A vehicle that has a pintle hook or other non-fifth wheel connection, they will have an 'O' restriction placed on their license restricting them from driving any Class A vehicle with a fifth wheel connection.
  • M - If a driver possesses a Class A CDL, but obtains his or her passenger or school bus endorsement in a Class B vehicle the State must place an 'M' restriction indicating that the driver can only operate Class B and C passenger vehicle or school buses.
  • N - If a driver possesses a Class B CDL, but obtains his or her passenger or school bus endorsement in a Class C vehicle; the State must place an 'N' restriction indicating that the driver can only operate Class C passenger vehicle or school buses.
  • V - If the State is notified by the FMCSA that a medical variance has been issued to the driver, the State must indicate the existence of such a medical variance on the CDLIS driving record and the CDL document using a restriction code 'V' to indicate that there is information about the medical variance on the CDLIS record.

ODD-BALL Drivers License Restriction Codes and Descriptions that don't necessarily apply to a CDL and that are not recognized in all states.

  • 3 - If the driver does not pass the Air Brakes Knowledge Test, does not correctly identify the air brake system components, does not properly conduct an air brake systems check, or does not take the Skills test in a vehicle with a full air brake system, the driver must have an 'L' no full air brake restriction placed on their license.
  • B - If the driver takes the test in a vehicle with an air over hydraulic brake system, then they will have a 'Z' no full air brake restriction placed on their license. In either case the driver is not authorized to operate a CMV equipped with full air brakes.
  • C - If the driver takes the Skills Test in a vehicle that has an automatic transmission, then an 'E' no manual transmission restriction is placed on their license.
  • D - If the driver takes the Skills Test in a Class A vehicle that has a pintle hook or other non-fifth wheel connection, they will have an 'O' restriction placed on their license restricting them from driving any Class A vehicle with a fifth wheel connection.
  • F - If a driver possesses a Class A CDL, but obtains his or her passenger or school bus endorsement in a Class B vehicle the State must place an 'M' restriction indicating that the driver can only operate Class B and C passenger vehicle or school buses.
  • G - If a driver possesses a Class B CDL, but obtains his or her passenger or school bus endorsement in a Class C vehicle; the State must place an 'N' restriction indicating that the driver can only operate Class C passenger vehicle or school buses.
  • K - If the State is notified by the FMCSA that a medical variance has been issued to the driver, the State must indicate the existence of such a medical variance on the CDLIS driving record and the CDL document using a restriction code 'V' to indicate that there is information about the medical variance on the CDLIS record.
  • O - If the driver takes the test in a vehicle with an air over hydraulic brake system, then they will have a 'Z' no full air brake restriction placed on their license. In either case the driver is not authorized to operate a CMV equipped with full air brakes.
  • P - If the driver takes the Skills Test in a vehicle that has an automatic transmission, then an 'E' no manual transmission restriction is placed on their license.
  • U - If the driver takes the Skills Test in a Class A vehicle that has a pintle hook or other non-fifth wheel connection, they will have an 'O' restriction placed on their license restricting them from driving any Class A vehicle with a fifth wheel connection.
  • V - If a driver possesses a Class A CDL, but obtains his or her passenger or school bus endorsement in a Class B vehicle the State must place an 'M' restriction indicating that the driver can only operate Class B and C passenger vehicle or school buses.
  • W - If a driver possesses a Class B CDL, but obtains his or her passenger or school bus endorsement in a Class C vehicle; the State must place an 'N' restriction indicating that the driver can only operate Class C passenger vehicle or school buses.
  • X - If the State is notified by the FMCSA that a medical variance has been issued to the driver, the State must indicate the existence of such a medical variance on the CDLIS driving record and the CDL document using a restriction code 'V' to indicate that there is information about the medical variance on the CDLIS record.
  • Z - If the State is notified by the FMCSA that a medical variance has been issued to the driver, the State must indicate the existence of such a medical variance on the CDLIS driving record and the CDL document using a restriction code 'V' to indicate that there is information about the medical variance on the CDLIS record.
If you need help . . .
determining what Class of CDL you need based upon the type of vehicle you will drive (A, B or C) or are not sure which CDL Endorsements you need based upon the type of loads you will carry; use the free CDL Selector Tool . . .
Colorado
Go to CDL Selector Tool
Not sure which CO CDL Tests you need to pass? Use this tool to determine what Class of CDL and which CDL Endorsements you require.

Are YOU ready to get YOUR Colorado CDL?
Prepare for YOUR Colorado CDL Tests NOW . . .

In addition to the Colorado CDL (commercial driver's license) information found in our website covering the Colorado CDL and in the free Colorado CDL Handbook (which is quite boring and a bit confusing - and doesn't have a single multiple-choice question in it that is asked on the actual tests), the complete online Colorado CDL Practice Test prep program will prepare you to easily pass your Colorado CDL written exams to get your Colorado CDL permit. The skills test modules are invaluable to give you a head start before doing your

Colorado Driver's License Previous Type N

behind the wheel work, possibly saving you a lot of money. The Colorado CDL test prep program includes the following features . . .
  • Covers ALL Eight Colorado CDL written tests.
    • In separate study modules - you won't need all of them - don't waste time on what you don't require.
  • Covers ALL Three Colorado CDL skills tests.
    • In separate study modules - you won't need all of them - don't waste time on what you don't require.
  • 670 practice Colorado CDL test questions with actual answers.
  • Access to CDL videos covering written and skills tests.
  • CDL study guide in both text and audio - listen as you read along.
  • CDL study Quick Reviews.
  • Interactive online CDL Quizzes.
  • and much more!
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