Washington's CDL requirements and the path to certification

Washington requires a Commercial Driver's License (CDL) if you operate a vehicle over 26,001 pounds, haul hazardous materials, or drive a bus carrying 16 or more people. The state issues CDLs through the Department of Licensing (DOL), and the process involves a written knowledge test, a skills test, and a background check. You cannot skip the written exam or the driving test — both are mandatory, and both must be passed before the DOL will issue your license.

The timeline varies depending on how quickly you prepare and schedule your tests. Most people spend 4 to 12 weeks studying and practicing before they are ready to test. Once you pass both the knowledge and skills exams, the DOL typically issues your CDL within a few business days.

Key Takeaways

  • Washington's CDL knowledge test covers vehicle operation, safety, and hazmat rules if you need that endorsement, and you must score at least 80 percent to pass.
  • The skills test includes a pre-trip inspection, a basic control test, and a road test, all conducted by an approved third-party examiner or the DOL.
  • You must hold a valid Washington driver's license and pass a medical exam (DOT physical) before you can test for a CDL.
  • Washington recognizes out-of-state CDLs, but you must transfer yours to a Washington license within 30 days of becoming a resident.

Medical certification and the DOT physical requirement

Before you sit for the CDL knowledge test, you must pass a Department of Transportation (DOT) physical exam. This is not optional. The exam checks your vision, hearing, blood pressure, and general health to confirm you can safely operate a commercial vehicle. You will need to visit a certified medical examiner — not your regular doctor — and bring your results to the DOL when you test.

The DOT physical is valid for 24 months. If your medical certificate expires before your CDL does, you must renew it or your CDL becomes invalid. Washington's DOL website lists approved medical examiners by county, so you can find one near you without calling around.

The knowledge test: what to study and how to pass

Washington's CDL knowledge test is computer-based and covers the Commercial Driver's Manual, which the DOL publishes online for free. The test has 50 questions, and you must answer at least 40 correctly (80 percent) to pass. You get one attempt per day if you fail, so you can retest the next business day without waiting weeks.

The test covers general knowledge (vehicle operation, safety, braking, cargo handling), air brakes if your vehicle has them, and hazmat rules if you need the hazmat endorsement. The DOL's manual breaks these topics into separate sections, so you can study one endorsement at a time. Most people study for 2 to 4 weeks before testing, using the manual plus practice tests available online through third-party study sites.

You take the knowledge test at a DOL office. Bring your valid Washington driver's license, your DOT medical certificate, and proof of your Social Security number. The test takes about 30 minutes.

The skills test: pre-trip inspection, basic control, and road test

After you pass the knowledge test, you schedule the skills test, which has three parts. All three must be passed on the same day, and you must use a vehicle that matches the class of CDL you are testing for. You cannot borrow a friend's truck and test — the vehicle must be registered to you or your employer, and it must meet Washington's safety standards.

The pre-trip inspection is a walk-around check where you point out and explain the function of critical components: lights, brakes, tires, mirrors, coupling devices, and safety equipment. The examiner watches and listens; you do not have to touch everything, but you must know what to look for and why. This part takes about 10 minutes.

The basic control test is a closed-course exercise where you maneuver the vehicle through a series of cones and markers. You perform a straight-line backing, an offset backing, and a 90-degree alley dock. Hitting a cone or going outside the boundaries means you fail that segment. This part takes about 5 to 10 minutes.

The road test is a 20- to 30-minute drive on public roads with an examiner in the passenger seat. You must demonstrate smooth acceleration, proper braking, lane changes, turns, and safe speeds. The examiner is looking for control, awareness, and compliance with traffic laws. Common failures include rolling stops, improper mirror checks, and unsafe lane changes.

Who administers the skills test in Washington

Washington allows both the DOL and third-party examiners to conduct skills tests. Third-party examiners are private companies or driving schools that the DOL has approved. Many people use third-party examiners because they often have shorter wait times than the DOL, though you pay a fee (typically $100 to $200 for the full skills test).

The DOL also administers skills tests at its offices, but wait times can be 4 to 8 weeks depending on location and season. If you use a third-party examiner, the results are submitted to the DOL, and your CDL is issued the same way.

You can find approved third-party examiners on the DOL website by searching your county. Call ahead to confirm they test for your class of CDL and to schedule your appointment.

CDL classes and endorsements in Washington

Washington issues three classes of CDL: Class A (combination vehicles over 26,001 pounds), Class B (single vehicles over 26,001 pounds), and Class C (smaller commercial vehicles or buses). Your class depends on the vehicle's Gross Vehicle Weight Rating (GVWR) and what you will be hauling.

Endorsements are add-ons that allow you to haul specific cargo or operate specific vehicle types. The most common are Hazmat (H) for hazardous materials, Tanker (N) for liquid cargo, Doubles/Triples (T) for multiple trailers, and Passenger (P) for buses. Each endorsement requires a separate knowledge test. You can test for multiple endorsements on the same day, but you must pass each test separately.

Transferring an out-of-state CDL to Washington

If you hold a valid CDL from another state and move to Washington, you have 30 days to transfer it. You do not have to retake the knowledge or skills tests — the DOL will recognize your out-of-state license and issue a Washington CDL with the same class and endorsements.

Bring your out-of-state CDL, your valid passport or other federal ID, proof of your Social Security number, and proof of Washington residency (a utility bill or lease works) to a DOL office. The transfer fee is the same as a regular CDL renewal. If your out-of-state CDL is expired, you will have to retake the tests.

Frequently Asked Questions

Can I test for a CDL if I have a suspended or revoked driver's license?

No. You must have a valid, unrestricted Washington driver's license before you can test for a CDL. If your license is suspended or revoked, you must resolve that first. Once your license is reinstated, you can begin the CDL process.

What happens if I fail the skills test?

You can retest, but you must wait at least one business day. There is no limit to how many times you can retake the skills test, though you pay the fee each time. Many people pass on the second or third attempt after practicing more.

Do I need a CDL to drive a pickup truck for work?

Only if the truck's GVWR exceeds 26,001 pounds. Most standard pickup trucks are under that threshold, so you do not need a CDL. Check your truck's registration or door jamb for the GVWR to be sure.

How long is a Washington CDL valid?

A CDL is valid for five years from the date of issue. You renew it at a DOL office by passing a new knowledge test and providing an updated DOT medical certificate. You do not have to retake the skills test unless your CDL was suspended or revoked.

Can I study for the CDL knowledge test online?

Yes. The DOL publishes the Commercial Driver's Manual online for free, and many third-party websites offer practice tests and study guides. However, you must take the actual knowledge test at a DOL office in person.