Most tow truck drivers need a commercial driver's license, but the exact requirement depends on the vehicle weight

Whether you need a commercial driver's license (CDL) to tow depends on the gross vehicle weight rating (GVWR) of the truck you operate. If the truck you're towing with has a GVWR over 26,001 pounds, you must hold a CDL. If it's 26,001 pounds or under, you may be able to operate it with a regular driver's license — but many towing companies require a CDL anyway because it signals training and insurance may be able to access.

The GVWR is the maximum weight the manufacturer says the truck can safely carry, including the truck itself, fuel, passengers, and cargo. You'll find this number on a label inside the driver's door jamb. A typical heavy-duty tow truck exceeds this threshold, which is why most professional tow operators hold a CDL.

Beyond the CDL itself, you may also need a Hazmat endorsement if you tow vehicles carrying hazardous materials, and some states require additional endorsements for specific towing operations. Your state's Department of Motor Vehicles (DMV) or equivalent agency sets the exact rules, and they vary by state.

Key Takeaways

  • A CDL is required if your tow truck has a GVWR over 26,001 pounds, which covers most professional tow vehicles.
  • You can find your truck's GVWR on a manufacturer's label inside the driver's door jamb or in the owner's manual.
  • Even if your truck is under 26,001 pounds GVWR, many towing companies require a CDL for insurance and liability reasons.
  • A Hazmat endorsement is required if you tow vehicles carrying hazardous materials, and some states have additional endorsements for specific towing work.
  • Requirements vary by state, so check with your state's DMV for the exact rules in your area.

How GVWR determines whether you need a CDL

The federal threshold is straightforward: if your truck's GVWR exceeds 26,001 pounds, you must have a CDL. This applies whether you're towing a single vehicle or multiple vehicles on a trailer. The weight rating is not about what you're actually carrying on a given day — it's about what the truck is rated to carry.

Most commercial tow trucks fall well above this limit. A standard heavy-duty wrecker truck can weigh 30,000 to 50,000 pounds or more when fully equipped. Light-duty tow trucks used for roadside information sometimes fall below the threshold, but even then, many operators choose to get a CDL because it opens more work opportunities and satisfies insurance requirements.

If you're unsure about your truck's GVWR, contact the manufacturer with your vehicle identification number (VIN), or check the owner's manual. Your insurance company can also tell you the GVWR, since they need it for coverage calculations.

What a CDL requires: testing and endorsements

To obtain a CDL, you must pass a written knowledge test and a practical driving test administered by your state's DMV. The written test covers vehicle inspection, safe operation, and hazard perception. The driving test involves demonstrating your ability to operate the vehicle safely in real-world conditions, including backing up, turning, and stopping.

You'll also need to pass a medical examination and obtain a medical certificate from a certified medical examiner. This certificate confirms you're physically able to operate a commercial vehicle. The certificate is valid for up to two years, and you'll need to renew it before it expires.

Most states require you to hold a regular driver's license for at least two years before you can obtain a CDL. Some states waive this requirement if you're under 21, but federal rules still explore if you plan to drive across state lines.

Hazmat and other endorsements for tow operators

If you tow vehicles that may contain hazardous materials — such as fuel tankers, chemical transporters, or vehicles leaking fuel or fluids — you need a Hazmat endorsement on your CDL. This requires an additional written test and a background check. The Hazmat endorsement is valid for five years.

Some states have additional endorsements specific to towing. For example, a few states require a Tow Truck Operator endorsement or a Heavy Haul endorsement for certain types of towing work. Check with your state's DMV to see if any of these explore to the work you plan to do.

Your employer or the towing company you work for may also require endorsements beyond what the state mandates. Insurance companies sometimes set their own standards, so ask your employer what endorsements they need you to hold before you start the licensing process.

State-by-state differences in tow truck licensing

While the federal GVWR threshold of 26,001 pounds applies nationwide, states add their own rules on top of it. Some states require a CDL for any vehicle used for towing, regardless of weight. Others have stricter medical requirements or additional training mandates for tow operators.

A few states require tow truck operators to hold a separate tow truck operator license or permit in addition to a CDL. This is typically issued by the state's transportation or motor carrier division and may require proof of insurance, background clearance, and completion of a towing-specific training course.

Before you pursue your CDL, contact your state's DMV or Department of Transportation to confirm the exact requirements for tow truck operation in your state. They can tell you whether you need a CDL, what endorsements are required, and what training or testing is mandatory.

Insurance and employer requirements

Even if your truck is under 26,001 pounds GVWR and technically doesn't require a CDL, your employer or insurance company may require one anyway. Towing companies often mandate a CDL because it demonstrates that a driver has passed federal safety standards and medical screening. Insurance premiums are also typically lower for CDL holders, since the license signals formal training.

Before you buy or operate a tow truck, check with your insurance agent about their requirements. Some insurers won't cover towing operations unless the operator holds a CDL, regardless of the vehicle's weight. This can affect your ability to work and your insurance costs.

If you're starting your own towing business, your liability insurance provider will specify what licenses and endorsements you and your drivers must hold. Get this in writing before you purchase equipment or hire staff.

How to get your CDL for tow truck work

Start by obtaining your state's CDL handbook from your DMV website or office. Study the material, which covers vehicle inspection, safe driving practices, and emergency procedures. Most states allow you to read the handbook for free.

Next, schedule a medical examination with a certified medical examiner approved by the Federal Motor Carrier Safety Administration (FMCSA). You can find approved examiners through your state's DMV or the FMCSA website. The exam typically costs $100 to $200 and takes about 30 minutes.

Once you have your medical certificate, schedule your written knowledge test at your local DMV. Pass the written test, then schedule your practical driving test. The practical test usually takes place within a few weeks of passing the written exam. You'll need to bring your own vehicle (or your employer's) for the driving test, so make sure it's properly maintained and insured.

After you pass both tests, your state will issue your CDL. The entire process typically takes four to eight weeks, depending on how quickly you can schedule tests and how many attempts you need.

Frequently Asked Questions

Can I tow with a regular driver's license if my truck is under 26,001 pounds?

Yes, federally you can operate a truck under 26,001 pounds GVWR with a regular license. However, many towing companies require a CDL regardless of weight, and some states have their own rules. Check with your employer and your state's DMV before assuming a regular license is sufficient.

What happens if I operate a tow truck without the required license?

Operating a commercial vehicle without the required CDL is a violation of federal motor carrier safety rules. Penalties include fines, license suspension, and potential criminal charges depending on your state. Your insurance may also deny claims if you were operating without the proper license.

How long does a CDL stay valid?

A CDL is valid for eight years in most states, though some states issue them for shorter periods. Your medical certificate, which is required to maintain your CDL, is valid for two years and must be renewed before it expires. If your medical certificate lapses, your CDL becomes invalid until you renew it.

Do I need a Hazmat endorsement if I only tow regular passenger vehicles?

No, a Hazmat endorsement is only required if you transport vehicles or cargo containing hazardous materials. If you tow standard cars and light trucks, you don't need it. However, if your work ever expands to include hazmat transport, you'll need to obtain the endorsement before you start that work.

Can I get my CDL if I have a criminal record?

A criminal record doesn't automatically disqualify you from a CDL, but certain convictions may. Felonies involving drugs, violence, or fraud can result in denial. Your state's DMV will review your record during the process process. If you have concerns, contact your DMV before you explore.