Tank
This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has three possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Oklahoma Commercial Driver License Manual. Questions come from chapters covering: Driving Safely, Tank Vehicles, Hazardous Materials and Combination Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.
Number of Question
Passing Score
1. Cargo tanks should never be completely full because:
Explanation
Liquids expand as they get warmer and drivers must allow extra space in a tank to accommodate this expansion. Different liquids expand to different degrees, so drivers must be aware of the outage requirements of the specific load they are carrying.
2. On a slippery surface, stopping distance:
Explanation
A vehicle's regular stopping distance increases on slippery surfaces because there is less available traction.
3. If you discover that your cargo is leaking, you should:
Explanation
If you discover a leak in a cargo of hazardous materials, identify the materials in question by using the shipping papers, labels, or package location. Do not touch the leaking material.
4. You may be an aggressive driver if you:
Explanation
Avoid being an aggressive driver by being realistic about your travel time, making allowance for delays, maintaining reasonable following distances, and not making hand gestures that could anger another driver.
5. If there is a fire in your vehicle, you should not:
Explanation
In the event of a vehicle fire, you should leave the road and stop in an open area. Do not pull into a service station as fuels at the service station could catch fire. Report the fire and your location to emergency services.
6. While driving a vehicle, if an unusual noise or feeling occurs, the driver should:
Explanation
Use your senses during trips to help you identify mechanical issues. If you see, hear, smell, or feel anything that could indicate trouble, you should stop and check it out.
7. Before beginning a trip, you should:
Explanation
Before a trip, you should ensure that air reaches all air brakes on all trailers by opening up the rear emergency line and service line shut-off valves and listening for escaping air. Close both shut-off valves before beginning to drive.
Frequently Asked Questions
To obtain a CDL Tank endorsement in Oklahoma, you need to follow these steps:
1. Obtain a Commercial Driver's License (CDL): To get a CDL, you must pass a written knowledge test and a skills test. You must also meet the federal and state requirements for CDL holders, including age, medical qualifications, and driving record.
2. Meet the Tank Vehicle Endorsement Requirements: To get a Tank endorsement, you must meet the following requirements:
- Hold a valid CDL
- Pass the Tank Vehicle Knowledge Test
- Pass the Tank Vehicle Skills Test
3. Study for the Tank Vehicle Knowledge Test: The Tank Vehicle Knowledge Test is a written test that covers topics such as tank vehicle inspection, loading and unloading procedures, and safe driving practices. You can study for the test by reviewing the Oklahoma Commercial Driver License Manual.
4. Schedule and Pass the Tank Vehicle Knowledge Test: You can schedule your test appointment at your nearest Oklahoma Department of Public Safety (DPS) testing center. You must pass this test to move on to the next step.
5. Study for the Tank Vehicle Skills Test: The Tank Vehicle Skills Test is a hands-on test that evaluates your ability to safely operate a tank vehicle. You can study for the test by practicing with a qualified instructor or by reviewing the Oklahoma Commercial Driver License Manual.
6. Schedule and Pass the Tank Vehicle Skills Test: You can schedule your test appointment at your nearest Oklahoma DPS testing center. You must pass this test to receive your Tank endorsement.
7. Pay the required fee: Once you have passed both tests, you will need to pay the required fee to add the Tank endorsement to your CDL.
Note that there may be additional requirements or restrictions based on your specific situation or type of tank vehicle you plan to operate. It's important to check with the Oklahoma DPS for complete information and guidance throughout this process.
1. Obtain a Commercial Driver's License (CDL): To get a CDL, you must pass a written knowledge test and a skills test. You must also meet the federal and state requirements for CDL holders, including age, medical qualifications, and driving record.
2. Meet the Tank Vehicle Endorsement Requirements: To get a Tank endorsement, you must meet the following requirements:
- Hold a valid CDL
- Pass the Tank Vehicle Knowledge Test
- Pass the Tank Vehicle Skills Test
3. Study for the Tank Vehicle Knowledge Test: The Tank Vehicle Knowledge Test is a written test that covers topics such as tank vehicle inspection, loading and unloading procedures, and safe driving practices. You can study for the test by reviewing the Oklahoma Commercial Driver License Manual.
4. Schedule and Pass the Tank Vehicle Knowledge Test: You can schedule your test appointment at your nearest Oklahoma Department of Public Safety (DPS) testing center. You must pass this test to move on to the next step.
5. Study for the Tank Vehicle Skills Test: The Tank Vehicle Skills Test is a hands-on test that evaluates your ability to safely operate a tank vehicle. You can study for the test by practicing with a qualified instructor or by reviewing the Oklahoma Commercial Driver License Manual.
6. Schedule and Pass the Tank Vehicle Skills Test: You can schedule your test appointment at your nearest Oklahoma DPS testing center. You must pass this test to receive your Tank endorsement.
7. Pay the required fee: Once you have passed both tests, you will need to pay the required fee to add the Tank endorsement to your CDL.
Note that there may be additional requirements or restrictions based on your specific situation or type of tank vehicle you plan to operate. It's important to check with the Oklahoma DPS for complete information and guidance throughout this process.
To obtain a CDL Tank endorsement in Oklahoma, you must meet the following requirements:
1. Hold a valid Commercial Driver's License (CDL): You must have a valid CDL of the appropriate class for the type of tank vehicle you plan to operate. You must also meet the federal and state requirements for CDL holders, including age, medical qualifications, and driving record.
2. Pass the Tank Vehicle Knowledge Test: You must pass a written knowledge test that covers topics such as tank vehicle inspection, loading and unloading procedures, and safe driving practices.
3. Pass the Tank Vehicle Skills Test: You must pass a hands-on skills test that evaluates your ability to safely operate a tank vehicle. The test will include tasks such as backing up, turning, braking, and navigating through different road conditions.
4. Meet any additional requirements: Depending on the type of tank vehicle you plan to operate, you may need to meet additional requirements or obtain other endorsements or certifications. For example, if you plan to transport hazardous materials in tanks, you may need to obtain a Hazmat endorsement in addition to your Tank endorsement.
It's important to note that there may be other requirements or restrictions based on your specific situation or type of tank vehicle you plan to operate. It's recommended to check with the Oklahoma Department of Public Safety (DPS) for complete information and guidance throughout this process.
1. Hold a valid Commercial Driver's License (CDL): You must have a valid CDL of the appropriate class for the type of tank vehicle you plan to operate. You must also meet the federal and state requirements for CDL holders, including age, medical qualifications, and driving record.
2. Pass the Tank Vehicle Knowledge Test: You must pass a written knowledge test that covers topics such as tank vehicle inspection, loading and unloading procedures, and safe driving practices.
3. Pass the Tank Vehicle Skills Test: You must pass a hands-on skills test that evaluates your ability to safely operate a tank vehicle. The test will include tasks such as backing up, turning, braking, and navigating through different road conditions.
4. Meet any additional requirements: Depending on the type of tank vehicle you plan to operate, you may need to meet additional requirements or obtain other endorsements or certifications. For example, if you plan to transport hazardous materials in tanks, you may need to obtain a Hazmat endorsement in addition to your Tank endorsement.
It's important to note that there may be other requirements or restrictions based on your specific situation or type of tank vehicle you plan to operate. It's recommended to check with the Oklahoma Department of Public Safety (DPS) for complete information and guidance throughout this process.
While there is no specific training or experience requirement to obtain a CDL Tank endorsement in Oklahoma, it is highly recommended that you receive specialized training to safely operate a tank vehicle. Tank vehicles have unique handling characteristics, such as a high center of gravity and liquid surge, that can make them more difficult to control than other types of commercial vehicles.
Many truck driving schools and training programs offer specialized training for tank vehicle operation. This training typically covers topics such as proper loading and unloading procedures, tank vehicle inspection, and safe driving practices. Completing this type of training can help you prepare for the Tank Vehicle Skills Test and improve your overall safety as a tank vehicle operator.
In addition, some employers may require or prefer that their tank vehicle operators have specific training or experience. It's recommended to research the requirements and preferences of potential employers before pursuing a CDL Tank endorsement.
Many truck driving schools and training programs offer specialized training for tank vehicle operation. This training typically covers topics such as proper loading and unloading procedures, tank vehicle inspection, and safe driving practices. Completing this type of training can help you prepare for the Tank Vehicle Skills Test and improve your overall safety as a tank vehicle operator.
In addition, some employers may require or prefer that their tank vehicle operators have specific training or experience. It's recommended to research the requirements and preferences of potential employers before pursuing a CDL Tank endorsement.
Yes, in Oklahoma, you will need to pass a written test specifically for the Tank Vehicle endorsement in addition to the general knowledge test required for all CDL applicants. The Tank Vehicle endorsement test covers topics such as:
1. Inspecting and driving tank vehicles
2. Safe loading and unloading of tank vehicles
3. Cargo and weight distribution
4. Handling liquid surge and sloshing
5. Recognizing and responding to emergencies
To obtain a Tank Vehicle endorsement, you must pass this written test with a score of at least 80%. You will also need to pass a skills test that specifically evaluates your ability to safely operate a tank vehicle. The skills test will include tasks such as backing up, turning, braking, and navigating through different road conditions.
It's important to note that the Tank Vehicle endorsement is just one of several possible endorsements that you can obtain for your CDL. Depending on your specific needs and job requirements, you may also need additional endorsements such as Hazardous Materials (Hazmat), Passenger Transport (P), or Double/Triple Trailers (T).
1. Inspecting and driving tank vehicles
2. Safe loading and unloading of tank vehicles
3. Cargo and weight distribution
4. Handling liquid surge and sloshing
5. Recognizing and responding to emergencies
To obtain a Tank Vehicle endorsement, you must pass this written test with a score of at least 80%. You will also need to pass a skills test that specifically evaluates your ability to safely operate a tank vehicle. The skills test will include tasks such as backing up, turning, braking, and navigating through different road conditions.
It's important to note that the Tank Vehicle endorsement is just one of several possible endorsements that you can obtain for your CDL. Depending on your specific needs and job requirements, you may also need additional endorsements such as Hazardous Materials (Hazmat), Passenger Transport (P), or Double/Triple Trailers (T).
The CDL Tank endorsement written test covers several topics related to the safe operation of tank vehicles, including:
1. Inspecting and driving tank vehicles
2. Safe loading and unloading of tank vehicles
3. Cargo and weight distribution
4. Handling liquid surge and sloshing
5. Recognizing and responding to emergencies
The specific questions on the test may vary, but they will generally focus on these key areas. Here are some examples of the types of questions you might see on the Tank endorsement test:
1. What should you check for during a pre-trip inspection of a tank vehicle?
2. When should you use baffle plates in a tank vehicle?
3. How can you prevent liquid surge while driving a tank vehicle?
4. What should you do if there is a leak or spill from your tank vehicle?
5. How do you safely load and unload a tank vehicle?
To pass the Tank endorsement written test in Oklahoma, you must score at least 80%. It's important to study the Oklahoma CDL Manual and any additional study materials provided by your training program to prepare for the test.
1. Inspecting and driving tank vehicles
2. Safe loading and unloading of tank vehicles
3. Cargo and weight distribution
4. Handling liquid surge and sloshing
5. Recognizing and responding to emergencies
The specific questions on the test may vary, but they will generally focus on these key areas. Here are some examples of the types of questions you might see on the Tank endorsement test:
1. What should you check for during a pre-trip inspection of a tank vehicle?
2. When should you use baffle plates in a tank vehicle?
3. How can you prevent liquid surge while driving a tank vehicle?
4. What should you do if there is a leak or spill from your tank vehicle?
5. How do you safely load and unload a tank vehicle?
To pass the Tank endorsement written test in Oklahoma, you must score at least 80%. It's important to study the Oklahoma CDL Manual and any additional study materials provided by your training program to prepare for the test.
Yes, in Oklahoma, you will need to pass a skills test that specifically evaluates your ability to safely operate a tank vehicle. The skills test will include tasks such as backing up, turning, braking, and navigating through different road conditions.
Here are some of the specific skills and maneuvers that you may need to demonstrate during the Tank endorsement skills test:
1. Pre-trip inspection: You will need to perform a thorough pre-trip inspection of your tank vehicle and explain the steps you're taking to the examiner.
2. Straight-line backing: You will need to back your tank vehicle in a straight line for a distance of at least 50 feet.
3. Offset backing: You will need to back your tank vehicle into a space that is offset to your left or right.
4. Alley docking: You will need to back your tank vehicle into an alley or loading dock.
5. Emergency stops: You will need to demonstrate your ability to make emergency stops safely and smoothly.
6. Gradual stops: You will need to demonstrate your ability to make smooth, gradual stops without spilling any liquid cargo.
7. Turns: You will need to demonstrate your ability to make turns safely and smoothly, taking into account the liquid cargo in your tank vehicle.
It's important to practice these skills with a qualified instructor or trainer before taking the Tank endorsement test. This will help you feel confident and prepared on test day.
Here are some of the specific skills and maneuvers that you may need to demonstrate during the Tank endorsement skills test:
1. Pre-trip inspection: You will need to perform a thorough pre-trip inspection of your tank vehicle and explain the steps you're taking to the examiner.
2. Straight-line backing: You will need to back your tank vehicle in a straight line for a distance of at least 50 feet.
3. Offset backing: You will need to back your tank vehicle into a space that is offset to your left or right.
4. Alley docking: You will need to back your tank vehicle into an alley or loading dock.
5. Emergency stops: You will need to demonstrate your ability to make emergency stops safely and smoothly.
6. Gradual stops: You will need to demonstrate your ability to make smooth, gradual stops without spilling any liquid cargo.
7. Turns: You will need to demonstrate your ability to make turns safely and smoothly, taking into account the liquid cargo in your tank vehicle.
It's important to practice these skills with a qualified instructor or trainer before taking the Tank endorsement test. This will help you feel confident and prepared on test day.
Yes, there are some restrictions and limitations that apply to drivers with a CDL Tank endorsement in Oklahoma. Here are a few examples:
1. Endorsement-specific restrictions: If you have a Tank endorsement on your CDL, you are only authorized to operate vehicles that require a Tank endorsement. You may not operate vehicles that require other types of endorsements unless you also have those endorsements.
2. Hazardous materials restrictions: If you transport hazardous materials in your tank vehicle, you will need to comply with additional regulations and restrictions, such as placarding requirements and route restrictions.
3. Cargo weight limits: The weight of the liquid cargo in your tank vehicle may be limited by federal and state regulations. You will need to ensure that you are not exceeding any weight limits when transporting liquid cargo.
4. Training requirements: If you are a new driver or if you have not previously operated a tank vehicle, you may be required to complete additional training before obtaining a Tank endorsement on your CDL.
It's important to be aware of these restrictions and limitations if you hold a CDL Tank endorsement in Oklahoma. Violating these rules can result in fines, penalties, or even the suspension or revocation of your CDL.
1. Endorsement-specific restrictions: If you have a Tank endorsement on your CDL, you are only authorized to operate vehicles that require a Tank endorsement. You may not operate vehicles that require other types of endorsements unless you also have those endorsements.
2. Hazardous materials restrictions: If you transport hazardous materials in your tank vehicle, you will need to comply with additional regulations and restrictions, such as placarding requirements and route restrictions.
3. Cargo weight limits: The weight of the liquid cargo in your tank vehicle may be limited by federal and state regulations. You will need to ensure that you are not exceeding any weight limits when transporting liquid cargo.
4. Training requirements: If you are a new driver or if you have not previously operated a tank vehicle, you may be required to complete additional training before obtaining a Tank endorsement on your CDL.
It's important to be aware of these restrictions and limitations if you hold a CDL Tank endorsement in Oklahoma. Violating these rules can result in fines, penalties, or even the suspension or revocation of your CDL.
No, you cannot transport liquid or gas materials without a CDL Tank endorsement if the vehicle you are operating requires this endorsement. In Oklahoma, a CDL Tank endorsement is required if you operate a commercial motor vehicle (CMV) that is designed to transport any liquid or gaseous material in a tank or tanks with an individual capacity of 119 gallons or more. This includes vehicles that transport:
- Gasoline or diesel fuel
- Milk
- Chemicals
- Propane
- Natural gas
If you operate a tank vehicle without a Tank endorsement, you may be subject to fines, penalties, and other consequences. In addition, your employer may be subject to penalties and sanctions for allowing you to operate a CMV without the required endorsement.
To obtain a Tank endorsement on your CDL, you will need to pass a written knowledge test and a skills test that specifically evaluates your ability to safely operate a tank vehicle. You may also need to complete additional training if you have never operated a tank vehicle before.
- Gasoline or diesel fuel
- Milk
- Chemicals
- Propane
- Natural gas
If you operate a tank vehicle without a Tank endorsement, you may be subject to fines, penalties, and other consequences. In addition, your employer may be subject to penalties and sanctions for allowing you to operate a CMV without the required endorsement.
To obtain a Tank endorsement on your CDL, you will need to pass a written knowledge test and a skills test that specifically evaluates your ability to safely operate a tank vehicle. You may also need to complete additional training if you have never operated a tank vehicle before.
You can add a CDL Tank endorsement to your existing CDL license in Oklahoma without having to apply for a new license. To add the Tank endorsement, you will need to pass a written test and a skills test that specifically evaluates your ability to safely operate a tank vehicle.
Here are the steps you can take to add the Tank endorsement to your CDL:
1. Obtain the Oklahoma Commercial Driver License Manual, which includes information on the Tank endorsement.
2. Study the Tank endorsement section of the manual and take practice tests to prepare for the written exam.
3. Schedule an appointment at an Oklahoma Department of Public Safety (DPS) testing location to take the written exam.
4. After passing the written exam, schedule an appointment at a DPS testing location to take the skills test in a tank vehicle.
5. Once you have passed both tests, your CDL will be updated with the Tank endorsement.
It's important to note that if you have never operated a tank vehicle before, you may be required to complete additional training before taking the skills test. This training may be provided by your employer or by a third-party training provider.
Also, keep in mind that you may need to pay additional fees for the written and skills tests, as well as for the updated CDL with Tank endorsement.
Here are the steps you can take to add the Tank endorsement to your CDL:
1. Obtain the Oklahoma Commercial Driver License Manual, which includes information on the Tank endorsement.
2. Study the Tank endorsement section of the manual and take practice tests to prepare for the written exam.
3. Schedule an appointment at an Oklahoma Department of Public Safety (DPS) testing location to take the written exam.
4. After passing the written exam, schedule an appointment at a DPS testing location to take the skills test in a tank vehicle.
5. Once you have passed both tests, your CDL will be updated with the Tank endorsement.
It's important to note that if you have never operated a tank vehicle before, you may be required to complete additional training before taking the skills test. This training may be provided by your employer or by a third-party training provider.
Also, keep in mind that you may need to pay additional fees for the written and skills tests, as well as for the updated CDL with Tank endorsement.
Yes, there are specific requirements and regulations for handling hazardous materials with a CDL Tank endorsement. In Oklahoma, if you transport any type of hazardous material in a tank vehicle, you must have a CDL with a Tank endorsement and a Hazardous Materials (HazMat) endorsement.
Here are some of the requirements and regulations for handling hazardous materials with a CDL Tank endorsement in Oklahoma:
1. Endorsements: You must have both the Tank and HazMat endorsements on your CDL to transport hazardous materials in a tank vehicle.
2. Training: You must complete specialized training on the proper handling of hazardous materials, including loading and unloading procedures, emergency response, and safety precautions.
3. Placarding: You must properly placard your vehicle with the appropriate hazard warning labels for the specific type of hazardous material you are transporting.
4. Documentation: You must carry all necessary documentation related to the hazardous materials being transported, including shipping papers, emergency response information, and placarding information.
5. Routing: You must follow specific routing requirements for transporting hazardous materials in tank vehicles. These routes may be designated by federal, state, or local authorities.
6. Inspections: You must perform pre-trip inspections of your tank vehicle to ensure that it is properly equipped and maintained for transporting hazardous materials.
7. Parking: You must follow specific parking requirements for tank vehicles carrying hazardous materials, including parking in designated areas away from other vehicles and sources of ignition.
It's important to note that there may be additional requirements and regulations for handling hazardous materials with a CDL Tank endorsement depending on the specific type of material being transported. It is your responsibility as the driver to ensure that you are following all applicable rules and regulations related to transporting hazardous materials in a tank vehicle.
Here are some of the requirements and regulations for handling hazardous materials with a CDL Tank endorsement in Oklahoma:
1. Endorsements: You must have both the Tank and HazMat endorsements on your CDL to transport hazardous materials in a tank vehicle.
2. Training: You must complete specialized training on the proper handling of hazardous materials, including loading and unloading procedures, emergency response, and safety precautions.
3. Placarding: You must properly placard your vehicle with the appropriate hazard warning labels for the specific type of hazardous material you are transporting.
4. Documentation: You must carry all necessary documentation related to the hazardous materials being transported, including shipping papers, emergency response information, and placarding information.
5. Routing: You must follow specific routing requirements for transporting hazardous materials in tank vehicles. These routes may be designated by federal, state, or local authorities.
6. Inspections: You must perform pre-trip inspections of your tank vehicle to ensure that it is properly equipped and maintained for transporting hazardous materials.
7. Parking: You must follow specific parking requirements for tank vehicles carrying hazardous materials, including parking in designated areas away from other vehicles and sources of ignition.
It's important to note that there may be additional requirements and regulations for handling hazardous materials with a CDL Tank endorsement depending on the specific type of material being transported. It is your responsibility as the driver to ensure that you are following all applicable rules and regulations related to transporting hazardous materials in a tank vehicle.
