Getting your CDL is just the beginning.
If you want to haul liquid loads — like fuel, milk, or chemicals — you’ll need a tanker endorsement. A lot of drivers don’t realize that until they’re already applying for jobs and getting turned away. Others assume it’s complicated or not worth the hassle.
If you’re searching for how to get tanker endorsement, you’re probably wondering:
What do I need to do? How long will it take? What’s it really for?
This guide breaks it all down into simple steps.
In this article, you’ll learn:
- What a tanker endorsement allows you to haul
- How to apply, study, and pass the test
- Why this small add-on can lead to bigger paychecks
Let’s get started.
What Is a Tanker Endorsement?
A tanker endorsement is a special certification added to your CDL that allows you to haul large quantities of liquid or gas in a tank vehicle.
This endorsement is often required when transporting more than 119 gallons of liquid per container or 1,000 gallons total. That includes everything from fuel and milk to industrial chemicals.
If you’re behind the wheel of a small delivery tanker truck or a full-sized fuel hauler, you’ll need the right CDL requirements for tanker endorsement to stay compliant. These requirements are clearly defined and essential for safe operation.
If you’re a Class A CDL or Class B CDL holder and plan to drive a tanker vehicle, this endorsement is for you. Many carriers also prefer drivers who carry both a tanker and hazmat endorsement, especially when the load involves hazardous materials.
For CDL drivers looking to increase job options and income, the tanker endorsement is one of the most valuable add-ons you can get.
Requirements to Qualify for a Tanker Endorsement
Before you can get a tanker endorsement, you need a valid commercial driver’s license. That means either a Class A or Class B CDL, depending on the type of vehicle you drive.
You’ll also need to meet some basic requirements:
- Be at least 18 years old (21 if transporting across state lines)
- Pass a DOT medical exam and hold a valid Medical Examiner’s Certificate
- Maintain a clean driving record, especially free of serious violations
Unlike the hazmat endorsement, the tanker doesn’t require fingerprinting or a background check. You won’t need to take a road skills test, either. However, you will need to pass a written tanker endorsement test at your local DMV.
Some drivers choose to expand their qualifications by becoming a hazmat driver, which opens even more opportunities. Hazmat certification pairs well with tanker endorsements, especially for high-value and regulated loads.
Each state follows FMCSA guidelines, but details can vary slightly. Always check with your state’s CDL manual before you take the test.
Getting the N endorsement (tanker) is a fast way to qualify for more loads, better pay, and more stable work in the trucking industry.
How to Get a Tanker Endorsement: Step-by-Step Guide
Adding a tanker endorsement to your CDL license is easier than most drivers think. There’s no road test involved, and you can usually finish the process in a few days.
Here’s how to get started.
Step 1 – Study Your State CDL Manual
Every state has its own version of the CDL handbook, but the tanker section is usually labeled Section 8 – Tank Vehicles. This section covers how liquid behaves in motion, surge effects, safe driving practices, and inspection procedures.
To pass the tanker endorsement test, you’ll need to understand how to handle tank vehicles, especially when transporting hazardous materials or liquids that can shift and affect braking.
Step 2 – Take the Written Knowledge Test
Once you’ve studied the material, schedule your written knowledge test at your local DMV. The test typically includes 20 to 30 questions. You’ll need to score at least 80% to pass.
This test is focused entirely on tanker-specific content. If you’re also getting your hazmat endorsement or combining both into an X endorsement, you’ll need to take additional tests.
Step 3 – Pay Fees and Update Your CDL
After you pass the tanker endorsement test, pay any state fees to have the endorsement added to your license. Fees vary by state but usually range from $10 to $50.
No skills test or behind-the-wheel exam is required for the N endorsement — just the written test. That said, always check with your state DMV for specific requirements.
While preparing for the test, be aware of any new CDL requirements that may apply in your state. Recent changes like Entry-Level Driver Training (ELDT) regulations can impact how and when you qualify.
Once your CDL is updated, you’re cleared to drive tanker trucks and haul liquid loads.
How Long Does It Take & What It Costs
In most states, you can obtain the tanker endorsement in less than a week.
Studying the manual might take a day or two, depending on how comfortable you are with the material. Once you feel ready, the knowledge test takes about 30 minutes, and you’ll usually know your results right away.
Typical costs include:
- Testing fee: $10–$25
- License update fee: $10–$50
Some states charge both; others combine them.
To speed things up, download your CDL manual online and start reviewing Section 8 right away. Take practice exams, which are often available for free. Many truck drivers also recommend visiting the DMV early in the day to avoid long lines.
For CDL holders aiming to increase their qualifications without weeks of driver training, this is one of the fastest ways to unlock new opportunities.
Why Tanker Endorsements Matter for Your Trucking Career
A tanker endorsement opens the door to better routes, higher pay, and more consistent work.
Companies need qualified CDL drivers to move everything from fuel and milk to cleaning chemicals and hazardous materials. These are essential goods, and that means steady demand — even during economic slowdowns.
Drivers with a CDL tanker endorsement are seen as more skilled and more flexible. Many carriers even offer bonuses for drivers who hold both tanker and hazmat endorsements (the X endorsement). That combo makes you eligible for high-paying loads that require added safety and compliance knowledge.
If you’re just starting out or looking to level up, this one endorsement can make a real difference in your trucking career.
Ready to Put Your Tanker Endorsement to Work?
Now you know exactly how to get a tanker endorsement, what it qualifies you to haul, and why it’s one of the most valuable CDL endorsements in the industry.
With your new endorsement in hand, the next step is finding the right job — and Premium Transport Staffing® (PTS) is here to help.
PTS® connects Class A CDL drivers with reliable, flexible, and high-paying opportunities across the country. If you’re looking for day-to-day gigs, temp-to-hire positions, or long-term routes, our mobile app makes it easy to get matched with the right job fast — no paperwork chaos, no guesswork.
Download the PTS® app or contact a recruiter today to start hauling the loads you’re now qualified to carry.
Your next tanker truck driver job is just a few clicks away.
