A cement truck requires a Commercial Driver's License with a tanker endorsement

To legally drive a cement truck, you need a Commercial Driver's License (CDL) with a tanker (N) endorsement. Cement trucks carry liquid or powdered cargo in a tank, which puts them in a higher-risk category than standard commercial vehicles. The tanker endorsement means you've demonstrated knowledge of how to handle the weight shifts, braking challenges, and cargo-specific hazards that come with tank vehicles.

The path to driving a cement truck starts with your regular CDL — usually a Class A or Class B depending on the truck's weight — and then adds the tanker endorsement test on top. You cannot skip straight to the tanker endorsement; you must hold a valid CDL first. Most cement truck employers will not hire you without both the CDL and the tanker endorsement already in hand.

Key Takeaways

  • You must hold a valid CDL (Class A or B) before you can add a tanker endorsement.
  • The tanker endorsement requires passing a written knowledge test specific to tank vehicle operation and cargo handling.
  • Some states require a skills test (backing and driving) for the tanker endorsement; others require only the written test.
  • Cement truck employers typically require the tanker endorsement before hire, so obtaining it before explore for jobs saves time.
  • Medical certification and a clean driving record are required to maintain your CDL and endorsement.

Class A versus Class B CDL for cement trucks

Most cement trucks are Class A vehicles because they exceed 26,001 pounds and tow trailers. A Class A CDL allows you to operate any commercial vehicle and tow trailers over 10,000 pounds — the standard for cement mixer trucks. If you already hold a Class A CDL, you can move directly to adding the tanker endorsement.

A Class B CDL covers vehicles between 26,001 and 33,000 pounds that do not tow trailers, or vehicles under 26,001 pounds towing trailers over 10,000 pounds. Some smaller cement trucks or ready-mix operations may use Class B vehicles, but this is less common. Check with your employer about the specific vehicle weight and configuration to determine which class you need.

The difference matters because Class A testing is more rigorous than Class B. If you are unsure which class your future employer uses, obtaining a Class A CDL gives you more job options across the industry.

The tanker endorsement written test

Every state requires a written knowledge test for the tanker endorsement. The test covers tank vehicle operation, cargo handling, weight distribution, and emergency procedures. You will answer questions about how liquid shifts inside a tank during braking and turning, why baffled tanks behave differently from unbaffled ones, and how to prevent rollover accidents — the most common hazard with cement trucks.

The test typically includes 20 to 25 questions, and you must score at least 80 percent to pass. Study materials are available through your state's Department of Motor Vehicles (DMV) website, usually in the CDL manual or a separate tanker endorsement study guide. Many drivers study for one to two weeks before taking the test.

You take the written test at your local DMV or testing facility. Bring your valid CDL, state ID, and any documents your state requires. The test fee varies by state but typically ranges from $10 to $50.

Skills testing requirements by state

Some states require a skills test (backing and driving) for the tanker endorsement; others require only the written test. Check your state's DMV website to confirm what your state requires — this is one of the most important steps because showing up unprepared for a skills test you did not know about wastes time and money.

States that require skills testing typically include a backing exercise in a confined space and a road test in a tank vehicle. The backing test measures your ability to control a vehicle with a high center of gravity and shifting cargo. The road test evaluates your braking, acceleration, and handling of the weight transfer that happens inside the tank.

If your state requires skills testing, you will need access to a cement truck or similar tank vehicle for practice and testing. Many CDL training schools offer tanker endorsement courses that include both classroom instruction and behind-the-wheel practice. These courses cost between $300 and $800 and typically take three to five days.

Medical certification and background requirements

Your CDL and tanker endorsement are only valid if you maintain a current medical certificate. You must pass a Department of Transportation (DOT) physical exam conducted by a certified medical examiner. The exam checks your vision, hearing, blood pressure, and ability to operate a commercial vehicle safely. You can find a certified examiner through your state's DMV or the National Registry of Certified Medical Examiners.

Your medical certificate is valid for two years (or one year if you are over 65). You must renew it before it expires, or your CDL becomes invalid. Many drivers schedule their renewal exam a few months before expiration to avoid gaps in certification.

You must also maintain a clean driving record. Serious violations — such as reckless driving, DUI, or at-fault accidents — can disqualify you from holding a CDL. Minor violations do not automatically disqualify you, but they may affect your insurability or your employer's willingness to hire you.

How to add the tanker endorsement to an existing CDL

If you already hold a valid CDL, adding the tanker endorsement is straightforward. Visit your state's DMV with your current CDL, state ID, and proof of residency. Request the tanker endorsement process form (the name varies by state but is often called an "Endorsement Request" or "CDL Modification").

Pay the endorsement fee and take the written test at the same visit or schedule a test appointment. If your state requires a skills test, you will schedule that separately after passing the written test. Once you pass all required tests, the DMV will issue an updated CDL with the tanker (N) endorsement printed on it.

The entire process — from process to receiving your updated license — typically takes two to four weeks, depending on your state's processing time. Some states offer expedited processing for an additional fee.

Training options and employer requirements

While not legally required in most states, many employers prefer or require formal tanker endorsement training before hire. A CDL training school that offers tanker endorsement courses will teach you cement truck operation, cargo handling, safety procedures, and equipment inspection. These courses are especially valuable if your state requires a skills test or if you have limited experience with commercial vehicles.

Some cement truck companies offer on-the-job training after hire, but this is less common. Starting with formal training makes you a more competitive candidate and reduces the learning curve once you are behind the wheel. Training schools also provide study materials and practice tests that improve your chances of passing the written exam on your first attempt.

Ask potential employers whether they cover training costs or offer tuition reimbursement. Some companies reimburse training expenses after you complete a certain period of employment, which can offset the upfront cost.

Frequently Asked Questions

Can I get a tanker endorsement without a CDL?

No. You must hold a valid CDL before you can add any endorsement, including tanker. If you do not have a CDL yet, you will need to obtain your Class A or B CDL first, then add the tanker endorsement.

Do I need a tanker endorsement for all cement truck jobs?

Yes. Any vehicle that carries liquid or powdered cargo in a tank requires a tanker endorsement. Cement trucks fall into this category. Some ready-mix operations may use non-tank vehicles, but the vast majority of cement truck positions require the tanker endorsement.

How long does it take to get a tanker endorsement?

If you already have a CDL, adding the tanker endorsement typically takes two to four weeks from process to receiving your updated license. The written test can be taken within days of explore. If your state requires a skills test, allow an additional one to two weeks for scheduling and testing.

What happens if I fail the tanker endorsement test?

You can retake the test. Most states allow you to retake the written test when ready or within a few days. If you fail a skills test, you may need to wait a few days before retesting. There is usually a fee for each test attempt. Many drivers study longer or take a training course before retesting.

Is the tanker endorsement valid in all states?

Yes. A CDL with a tanker endorsement issued by one state is recognized in all other states. You do not need separate endorsements for each state you drive in, though you must maintain your medical certification and follow each state's traffic laws.