Where to Find CDL Training in Colorado

Colorado has two main routes to get your Commercial Driver's License (CDL): attend a formal truck driving school or complete on-the-job training through a carrier. Formal schools are faster and more structured, typically taking four to eight weeks. Carrier-sponsored programs vary widely — some take months, others run concurrent with your first job.

Formal CDL schools operate in Denver, Colorado Springs, and several smaller cities. The Colorado Department of Transportation (CDOT) does not run training programs itself, but it maintains a list of approved schools on its website. You can also search through the Professional Truck Driver Institute (PTDI), which accredits many Colorado programs. Accreditation does not may provide quality, but it means the school meets baseline standards for instruction hours and equipment.

Carrier-sponsored training is offered by major trucking companies like Werner, Schneider, and Swift, as well as regional carriers. These programs typically require a commitment to work for the company for a set period (often one to three years) after you finish. The company covers tuition; you cover living expenses during training.

Key Takeaways

  • Colorado CDL training takes four to eight weeks at a formal school, or several months through a carrier-sponsored program.
  • You must pass a written knowledge test, a pre-trip inspection test, and a road test with a CDOT examiner before you receive your CDL.
  • Formal schools cost between $3,000 and $7,000 out of pocket; carrier programs are free but lock you into an employment contract.
  • Your medical certificate (CDOT Form MCSA-5875) must be current before you test, and you need a valid Colorado driver's license to start.
  • Colorado recognizes out-of-state CDL training, so you can complete school elsewhere and test in Colorado if you establish residency.

What You Need Before You Start Training

Before enrolling in any CDL program, you need a valid Colorado driver's license and a current medical certificate. The medical certificate is issued by a CDOT-certified medical examiner and confirms you meet federal health standards for commercial driving. You can find certified examiners through the CDOT website or by calling your local DMV office. The certificate is valid for two years and costs between $50 and $150, depending on the examiner.

You also need a Social Security number and proof of Colorado residency (utility bill, lease, or bank statement dated within 60 days). If you have a commercial learner's permit (CLP) already, training will move faster — schools can often skip the written test portion. If not, you will take the written knowledge test as part of your training or before you enroll.

Check your driving record before you explore. Colorado and federal law disqualify you from holding a CDL if you have certain convictions (felonies involving drugs, crimes of violence, or certain traffic offenses) or if you have multiple serious traffic violations within the past three years. Your school or the carrier will run a background check, so know your record in advance.

Formal School vs. Carrier-Sponsored Training

Formal schools give you more control over timing and employer choice. You pay tuition upfront (typically $3,000 to $7,000), complete training in four to eight weeks, and then job-hunt on your own terms. You own your CDL and can work for any carrier that will hire you. The downside is cost and the gap between finishing school and landing your first job — some drivers spend weeks or months looking.

Carrier-sponsored programs eliminate tuition and may provide a job when you finish. You commit to working for that carrier for a set period, usually 12 to 36 months. During training, the company covers instruction but not your living expenses, which can run $500 to $1,500 per month depending on the program location. After you complete training and the commitment period, you are free to move to another carrier. The tradeoff is less flexibility during training and a contractual obligation that can carry penalties if you leave early.

A third option is to find a carrier willing to hire you with a permit and train you on the job. This is less common in Colorado than in some states, and it typically takes longer than formal school. You work under supervision while learning, which means lower pay during the training phase.

The Colorado CDL Testing Process

Colorado CDL testing happens in three stages: the written knowledge test, the pre-trip inspection test, and the road test. All three must be passed to receive your CDL. You can take them on the same day or spread them across multiple visits to a CDOT testing facility.

The written test covers federal and Colorado-specific commercial driving rules, vehicle maintenance, and safety. It has 50 questions; you must score at least 80 percent to pass. If you hold a commercial learner's permit, you have already passed this test. If not, you take it at the testing facility or sometimes at your training school, depending on the school's agreement with CDOT.

The pre-trip inspection test requires you to walk around a truck, identify key components (lights, brakes, tires, coupling devices), and explain what you are checking and why. You do not have to touch everything, but you must demonstrate knowledge of the vehicle. This test is pass-fail with no score; the examiner is looking for competence and safety awareness.

The road test is a 30- to 45-minute drive with a CDOT examiner in a commercial truck. You will navigate city streets, highway driving, and parking maneuvers. The examiner scores your performance on vehicle control, safety, and rule compliance. You must pass all three tests to receive your CDL; if you fail any one, you can retake only that portion after a waiting period (usually 24 hours to one week, depending on CDOT's schedule).

Costs and Timeline for Colorado CDL Training

Formal school costs range from $3,000 to $7,000, depending on the school and whether you need remedial instruction or additional endorsements (hazmat, tanker, doubles). Most schools include tuition, textbooks, and access to practice tests. Some charge extra for the medical certificate or testing fees. Ask the school for an itemized cost breakdown before you enroll.

Carrier-sponsored programs are free for tuition but require you to cover living expenses during training, which typically runs $500 to $1,500 per month for four to eight weeks. Some carriers offer housing stipends or allow you to stay at company facilities at reduced cost. After training, you begin earning a driver's wage, which varies by carrier but typically starts at $35,000 to $45,000 per year for new drivers.

Timeline varies. Formal school takes four to eight weeks from start to CDL in hand. Carrier programs can take two to four months from process to your first solo run, depending on how long the company takes to process your paperwork and schedule training. Out-of-state training followed by Colorado testing can take longer if you have to establish residency first.

Endorsements and Restrictions You May Need

Your CDL comes with a base license that allows you to drive most commercial trucks. Additional endorsements expand what you can haul. The most common are Hazmat (hazardous materials), Tanker, Doubles/Triples, and Passenger. Each endorsement requires a separate written test and, in some cases, additional training or background checks.

Hazmat endorsement requires a Transportation Security Administration (TSA) background check and fingerprinting, which adds $100 to $200 and takes one to two weeks. Tanker and Doubles endorsements require only written tests. Passenger endorsement is for school buses or tour buses and requires a written test plus a skills test with passengers or dummies in the vehicle.

Most formal schools include one or two endorsements in their base tuition. If you want additional endorsements, ask whether the school covers them or charges extra. Carrier-sponsored programs typically cover whatever endorsements the carrier needs you to have.

What Happens After You Pass Your CDL Test

Once you pass all three tests, CDOT issues your CDL. You receive a physical card in the mail within two weeks. Your CDL is valid for eight years in Colorado, though your medical certificate must be renewed every two years. You can renew your medical certificate at any CDOT-certified examiner; renewal is faster than the initial exam and costs the same.

If you attended formal school, you now job-hunt independently. Most carriers hire new CDL holders, though some prefer drivers with a few months of experience. Your school may have job placement information or connections with carriers; ask about this when you enroll. If you went through a carrier-sponsored program, you begin your employment commitment when ready after passing your tests.

Keep your CDL current by maintaining a clean driving record and renewing your medical certificate on time. Certain violations (DUI, reckless driving, leaving the scene of an accident) can result in CDL suspension or revocation, even if you are driving a personal vehicle. Colorado also has a points system; accumulating too many points within a set period can lead to license suspension.

Frequently Asked Questions

Can I get my CDL if I have a DUI on my record?

A DUI does not automatically disqualify you, but it complicates the process. Colorado law allows CDL holders with a DUI, but federal rules may restrict certain endorsements (Hazmat, for example). Your carrier or school can tell you whether your specific record is acceptable. Some carriers will not hire drivers with recent DUIs regardless of legal status.

Do I have to use a Colorado school, or can I train out of state?

You can train anywhere and then test in Colorado, as long as you establish Colorado residency before you test. Residency requires a Colorado address and typically proof of intent to stay (lease, utility bill, voter registration). Some out-of-state schools have partnerships with Colorado testing facilities, which can streamline the process.

How long does a CDL stay valid in Colorado?

Your CDL is valid for eight years from the date of issue. Your medical certificate, however, is valid for only two years and must be renewed before it expires. If your medical certificate lapses, your CDL becomes invalid until you renew it, even though the CDL card itself has not expired.

What is the difference between a commercial learner's permit and a CDL?

A commercial learner's permit (CLP) allows you to drive a commercial truck under supervision while you train and prepare for your CDL test. You must have a CLP for at least 14 days before you can test for your CDL. A CLP does not allow you to drive commercially on your own; a CDL does. Most training programs help you obtain a CLP as the first step.

Can I test for my CDL in Colorado if I live in another state?

No. You must be a Colorado resident to test at a Colorado CDOT facility. If you live in another state, you test there. However, if you complete training in Colorado and establish residency (even temporarily), you can test in Colorado and then move back to your home state with your Colorado CDL, which other states recognize.