Fuel Your Future: How to Add a Tanker (N) Endorsement to Your CDL

Aug 12 / Erin Ford

Are you ready to take your commercial driving career to the next level? Earning a Tanker Endorsement (N) allows you to operate vehicles that haul liquid or gaseous materials in tanks — an essential qualification for drivers looking to expand their opportunities and earning potential.

Whether you're hauling fuel, milk, or chemicals, tanker trucks require specialized skills and awareness — and getting certified is a straightforward process if you already have your CDL. In this guide, we’ll walk you through everything you need to know to earn your endorsement and start driving tankers with confidence.

If you already have your CDL, adding your Tanker Endorsement is a pretty simple process.

(Don’t have your CDL yet? Check out this post to get started.) 

What you'll need

  • A valid CDL
  • The required forms and fees for testing at the DMV (Check with your state DMV for specifics.)
  • To pass the written test at the DMV

How We Can Help

As you can see, adding the Tanker Endorsement is simple — but maybe you want more guidance than just flipping through the DOT manual.

That’s where we come in.

We’ve taken all the DOT and FMCSA regulations and built a comprehensive Tanker Endorsement Study Guide. It includes video training modules that walk you through everything you need to pass the written test — plus two downloadable practice tests with answer keys.

Our Study Guide is available here for just $14.99!

Like all our courses, the Tanker Endorsement Study Guide is self-paced and designed by industry experts and professional educators — so what you learn sticks with you long after you finish.