What you need before you can legally drive a truck
To drive a commercial truck, you need a Commercial Driver's License (CDL), which is issued by your state's Department of Motor Vehicles. You cannot get one without first passing a written knowledge test, a skills test, and a medical exam. The entire process typically takes four to eight weeks, though the timeline depends on how quickly you study, schedule your tests, and whether you need additional endorsements for hazmat or passenger transport.
Before you can even test for a CDL, most states require you to hold a regular driver's license for at least one year and have a clean driving record. Some states have stricter requirements—a few demand two years of driving history. You'll also need to pass a Department of Transportation (DOT) medical exam, which checks your vision, hearing, blood pressure, and general health. This exam costs between $100 and $200 and must be performed by a certified medical examiner.
The knowledge test covers federal trucking regulations, vehicle inspection, safe driving practices, and air brake systems if you're driving an air-brake truck. You study from your state's CDL manual, which is free and available online through your DMV website. Most people spend two to four weeks studying before testing.
Key Takeaways
- You must pass a written knowledge test, a skills test, and a DOT medical exam to get your CDL, which is issued by your state's DMV.
- A commercial truck driving school typically costs $3,500 to $15,000 and takes three to seven weeks, though some programs are shorter or longer depending on the endorsements you need.
- Many trucking companies will pay for your training if you commit to working for them for a set period, usually one to three years.
- You can study for the written test on your own using your state's CDL manual, but most people find a formal training program helpful for learning vehicle inspection and passing the skills test.
- After you get your CDL, you'll need to find a company willing to hire you as a new driver, which often means starting with local or regional routes before moving to long-haul work.
Truck driving school: what it covers and how long it takes
A commercial truck driving school teaches you how to inspect a truck, operate it safely, and pass the CDL skills test. Most programs run three to seven weeks full-time, though some compressed programs finish in two weeks and others take up to twelve weeks if they include additional endorsements or job placement services. The cost ranges from $3,500 to $15,000 depending on the school, location, and what's included.
During truck driving school, you'll spend time in a classroom learning federal regulations and safety procedures, then move to behind-the-wheel training where an instructor rides with you in a truck. You'll practice pre-trip inspections (checking brakes, lights, tires, and fluid levels), backing up, lane changes, and highway driving. The school provides the truck for practice and testing. By the end, you should be ready to pass your state's CDL skills test, which includes a pre-trip inspection, a backing exercise, and a road test.
Not all truck driving schools are the same. Some are accredited by the Professional Truck Driver Institute (PTDI), which means they meet national standards for curriculum and instructor training. PTDI-accredited schools don't cost more, but they do have stricter requirements and better track records for helping students pass the CDL test on the first attempt. You can search for accredited schools on the PTDI website.
Company-sponsored training programs and tuition reimbursement
Many large trucking companies—including Werner, Schneider, Swift, and Heartland Express—will pay for your CDL training if you agree to work for them after you finish. These programs typically require a commitment of one to three years. If you leave before the commitment period ends, you may have to repay part or all of the training cost, though some companies waive this if you're laid off or the company closes.
Company-sponsored training is often faster and cheaper than independent truck driving school because the company designs the program to match its own trucks and procedures. You'll train on the same equipment you'll drive on the job. The downside is that you're locked into working for that company, and if you find the job isn't what you expected, leaving costs money.
If you've already paid for truck driving school on your own, some companies offer tuition reimbursement—they'll pay you back a portion of what you spent, usually $1,000 to $5,000, after you've worked for them for a set period. This is less common than full sponsorship but does exist. Ask about it when you explore.
Self-study for the written test without formal training
You can study for the CDL written test entirely on your own using your state's CDL manual and free online practice tests. This route costs nothing upfront and takes as little as two to four weeks if you study consistently. However, you still need to pass the skills test, which requires you to demonstrate pre-trip inspection and driving ability in front of a state examiner. Most people find it difficult to practice these skills without access to a truck and an experienced instructor.
If you choose self-study, you'll need to rent or borrow a truck to practice backing, turning, and inspecting before your skills test. Some independent driving instructors offer one-on-one coaching for $50 to $150 per hour, which is cheaper than full truck driving school but still requires you to find a truck. This approach works best if you already know someone in trucking who can let you practice on their truck.
The written test itself is straightforward if you study the manual thoroughly. The skills test is where most self-taught drivers struggle, because backing a 70-foot truck combination and performing a pre-trip inspection require practice and feedback. Failing the skills test means paying the testing fee again (usually $100 to $300) and waiting weeks for another appointment.
Endorsements and additional certifications you might need
Your basic CDL allows you to drive most commercial trucks, but certain jobs require additional endorsements. A Hazmat endorsement is needed if you transport hazardous materials like fuel, chemicals, or explosives. It requires passing an extra written test and a background check. A Passenger endorsement is required to drive buses or passenger vans. A Doubles/Triples endorsement lets you pull double or triple trailers, which some regional and long-haul jobs require.
You can add endorsements either before you get your CDL or after. Adding them before costs less because you take all the tests at once, but it means more studying upfront. Adding them later means you can start working sooner and study for endorsements as specific jobs require them. Most truck driving schools include one or two endorsements in their base program; others charge extra.
Beyond endorsements, some companies require additional training or certifications. Tanker endorsement training teaches you how to safely haul liquids in specialized tanks. Flatbed training covers securing cargo on open trailers. These are usually company-specific and provided on the job or during your first few weeks of employment.
Timeline from decision to first job
If you attend a truck driving school, the timeline looks like this: two to four weeks studying for the written test and scheduling your medical exam, three to seven weeks in truck driving school, one to two weeks waiting for your CDL test appointment and taking the test, then one to four weeks job searching and onboarding with a company. Total: roughly three to five months from start to your first paycheck.
If you use company-sponsored training, the timeline is often shorter because the company schedules everything and you move directly from training to employment. Some companies have you start working within days of finishing the program, though you may drive with a mentor for the first few weeks.
If you self-study, the timeline depends entirely on how quickly you can arrange practice time and schedule your tests. The written test is usually available within a week or two of explore at your DMV. The skills test has longer wait times in busy areas—sometimes four to eight weeks. Once you have your CDL, job placement can happen quickly if you're flexible about location and route type.
What to look for in a truck driving school
When choosing a truck driving school, check whether it's accredited by the Professional Truck Driver Institute (PTDI) and whether it has a high pass rate on the CDL skills test. Schools should publish their pass rates—if they won't, that's a red flag. Ask about the instructor-to-student ratio; smaller classes mean more hands-on time behind the wheel. A good program has at least 40 to 60 hours of behind-the-wheel instruction.
Find out what's included in the tuition. Some schools bundle the DOT medical exam, CDL test fees, and endorsements into one price. Others charge separately for each. Ask whether the school helps with job placement after you graduate—many do, and this can speed up your first hire. Read reviews on Google and the Better Business Bureau, but remember that unhappy people are more likely to leave reviews than satisfied graduates.
If a company is sponsoring your training, ask whether you can choose the school or whether they have a partnership with a specific one. Company-partnered schools are often good because the company has vetted them, but you have less choice. If you're paying out of pocket, compare the total cost including all fees, not just tuition.
Frequently Asked Questions
Can I get a CDL without going to truck driving school?
Yes, you can study on your own using your state's CDL manual and pass the written test without formal training. However, you still need to pass the skills test, which requires demonstrating pre-trip inspection and driving ability in a truck. Most people find it difficult to practice these skills without an instructor and access to a truck, so self-study is less common than attending a school.
How much does truck driving school cost if a company isn't paying?
Independent truck driving schools typically charge $3,500 to $15,000 depending on the program length, location, and what's included. Shorter programs (two to three weeks) cost less; longer programs with job placement services cost more. Some schools offer payment plans or financing options. Always ask what's included in the quoted price—some schools charge extra for the DOT medical exam, CDL test fees, or endorsements.
What happens if I fail the CDL skills test?
You can retake it after paying the testing fee again, which usually costs $100 to $300. Wait times for the next available test vary by state and how busy your local DMV is—typically one to eight weeks. Most truck driving schools offer free or discounted retesting if you fail, so ask about this before you enroll.
Do I need to be a certain age to get a CDL?
You must be at least 18 years old to get a CDL and drive within your state. To drive across state lines (interstate), you must be at least 21. Most trucking companies won't hire drivers under 21 anyway, even if they're legally allowed to drive. Some companies prefer drivers with a few years of regular driving experience before they start truck driving.
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. You'll need to renew it before it expires, which involves passing a medical exam and paying a renewal fee. You don't have to retake the knowledge or skills tests unless your license was suspended or you let it expire for more than a certain period (usually one to two years).