
When Do I Need A Cdl License – A CDL can have 3 license plates; Class A, B, or C. Each classification allows you to drive special commercial vehicles (CMVs). Approval is also required if you, for example, want to transport certain goods (such as dangerous goods), drive a mixed vehicle, or carry passengers.
In this article, we will go over the differences between Class A, B, and C and how to obtain each license.
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A Class A license allows the holder to drive a combination vehicle with a curb weight of at least 26,000 pounds, provided that the GVWR of the truck is at least 10,000 pounds.
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If you drive a commercial vehicle that includes trucks or trailers with two or more axles, you will need a Class A CDL.
Once you’ve passed the above-mentioned test, congratulations! You will now have a Class A Commercial Driver’s License. However, keep in mind that you will need to take additional recommended tests, such as a couple of vision tests or air-brakes tests, depending on the type of car you want to drive.
For example; If your car uses air brakes, you should pass the air brake approval test before you drive it. Likewise, you need to take the double-triple test to drive double and triple.
A Class B CDL allows the holder to drive a vehicle with a GVWR over 26,000 pounds, provided the GVWR of a towed vehicle is less than 10,000 pounds. Most of the weight is in a car in the front.
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As the Class B CDL is usually focused on one vehicle, you may not need to get an endorsement for a combination vehicle or two-wheeler.
However, most cars in Class B use air brakes because they are best suited for heavy vehicles which means you will get the recommended air brakes in addition to the recommended Class B. B agrees.
Class C CDL is the last license class and it includes others, for example Class A and B do not. It allows the owner to drive a vehicle with a GVWR of less than 26,000 pounds, because the truck has a GVWR of less than 10,000 pounds. This class of license is also used to drive vehicles transporting 16 people or more (school buses, passenger vans, etc.), or transporting hazardous materials (hazmats).
The process of obtaining a Class C CDL, and determining which endorsement is appropriate, varies depending on the type of vehicle you will be driving. For example, a school bus is different from a dangerous goods vehicle and may require a different approval.
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Approval allows for the operation of many different types of vehicles. With the exception of the CDL, you are limited to driving in your licensed class with no additional endorsements required. In order to drive different types of cars and load more things, you need to get some good deals.
You can think of your CDL as having many restrictions from the get-go. For each approval you receive, you will carry a specific restriction (for example; driving with air brakes, transporting dangerous goods, or operating a tank truck). Each endorsement requires the CDL holder to pass a specific knowledge test. Most agreements also require a special evaluation of the road.
In this section, we’ll go over all the different CDL endorsements, including what to apply for and how to get them. You must complete training from an FMCSA-approved technician to obtain an H, P, or S endorsement.
Approved T must pull a double or triple trailer. To get this approval you must pass the written test.
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Approval P requires a vehicle with seating for 16 passengers or more, including the driver. To apply you must have a valid driving record up to this point (eg; no DWI, impaired driving, speeding, or other serious offenses on record paper). To get this approval you must pass a written test and a road test.
Approval H is required to operate a vehicle transporting hazardous materials (hazmats). To apply you must be a US citizen, permanent resident, or have a valid work permit. To get this approval you must pass the written test.
An approved N is to be a tank car, i.e. a car carrying liquid or oil in a tank. To get this approval you must pass the written test.

An S approval is required to drive a school bus, but first you must obtain a P approval. You can lose your S approval if you commit driving offenses such as like speeding or crossing the wrong road. To get this approval you must pass a written test and a road test. Your state will also conduct a background check on you before granting approval.
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Approval X is a combined approval for H and N, i.e. it allows you to transport dangerous goods on a tank. To apply you must fulfill the requirements of H and N approval. To get this approval you must pass the written test.
Your CDL comes with different types of restrictions. All restrictions restrict the activity of certain CMVs. These restrictions are generally the same for all US states, but depending on where you live there may be additional restrictions.
Driving CMVs is difficult, so there are many different restrictions you need to be aware of.
Most of the following restrictions will be placed on your CDL because you passed the CDL road test using a vehicle without the proper equipment. For example; If you pass the driving test with a CMV with an automatic transmission, you will receive an E restriction that prohibits you from operating a CMV with a manual transmission.
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An E restriction prohibits the driver from operating a CMV with a manual transmission. In other words, the driver should only drive the CMV with automatic transmission.
Restriction F indicates that the driver may only operate CMVs with two outside gears. It is placed on a driver who cannot physically move his head, who is legally blind in one eye, or who cannot hear. The outside mirror will help by showing a larger area around the car.
Restriction G means that the driver can only operate the CMV during the day. Restriction G is imposed on drivers with impaired vision as recommended by the doctor, usually with less than 50/50 vision in both eyes.
Limitation K is used by some states when the applicant is under 21 years of age. It shows that the holder is only allowed to drive different vehicles, i.e. should not drive different vehicles. This restriction must be removed when the CDL holder turns 21 years old.
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An L restriction is similar to a Z restriction in that they both restrict the driver from operating CMVs equipped with full air brakes. Limitation L will be issued if you make a mistake when you check the air brake during the skill test, if you fail to check the air brake, or if you failed the air test.
A restriction M indicates that the driver only uses school buses B and C or passengers. It is placed on the driver who receives the bus/school approval to use a Class B vehicle.
An N restriction indicates that the driver will only use Class C school buses or passenger vehicles. It is placed on the driver who receives the bus/school approval to use a Class C vehicle.
An O restriction prohibits a driver from driving a CMV with a fifth wheel. An O road limit will be issued to drivers who pass the CDL road test using a CMV without a fifth wheel hitch or pintle hook.
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Limit V is given to drivers who have different medical conditions as defined by FMCSA, such as vision or hearing impairment, epilepsy, or diabetes. If you have a medical condition that is not listed on your current driver’s license, you must visit your local DMV office with a copy of your Medical Certificate. update your CDL.
A limited X is only issued for Learner Business Licenses. It means that the car tank must be empty and the tank must be purged.
A Z ban prohibits the operator from operating CMVs equipped with full air brakes. Most CMVs are equipped with air brakes because of their crash performance, but you can still get this limit if you pass the CDL road test with a CMV that has hydraulic brakes (and not wind brake).
A B is not much for those who do not have enough vision. It means that the driver must use corrective lenses or glasses while operating the CMV.
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A limited P is only issued for Business Learner’s Licenses. It means ‘no passengers who are not driving instructors or other authorized persons (inspectors or other trainers).
Those are