Month: September 2026

What Does the CDL Skills Test Include?

Key Takeaways

  • The CDL skills test has three required parts: the vehicle inspection, the basic control skills test, and the on-road driving test. A candidate must pass all three to earn a commercial driver’s license.
  • A candidate who fails the pre-trip inspection part does not move on to the rest of the test.
  • The basic control skills test checks how well a candidate handles the vehicle in tight spaces through maneuvers like straight-line backing, offset backing, and alley docking.
  • The on-road test happens in live traffic and checks whether a candidate can start, stop, shift, turn, and follow the rules of the road safely.
  • Examiners score candidates on encroachments, pull-ups, and outside observations. Too many errors in any one part can end the test early.
  • A test candidate should plan for two to three hours at the testing site, and the vehicle used must match the CDL class being tested for.

The Three Parts of the CDL Skills Test

The CDL skills test is the final step before a driver earns a commercial driver’s license. Every state administers the test in the same three parts, since the requirements come from the Federal Motor Carrier Safety Administration, known as FMCSA. A candidate must pass each part in order. Failing one part usually means the test stops there, and the candidate has to schedule a retest for that section.

This structure exists because trucking involves different kinds of skill. Reading a truck’s condition, maneuvering it in a tight yard, and driving it safely in traffic are three separate abilities. The test checks all three before handing over a license.

Part 1: The Vehicle Inspection

The first part of the CDL skills test is the vehicle inspection, also called the pre-trip inspection. The candidate walks around the vehicle and explains to the examiner what they are checking and why. This covers the engine compartment, the cab, the lights, the tires, the brakes, and, for Class A candidates, the coupling system.

Candidates must point to or touch each item while explaining it. Reciting memorized lines without looking at the parts is one of the most common reasons candidates lose points. If the vehicle has air brakes, the candidate also has to demonstrate the air brake check, including how the system builds pressure and how the low-pressure warning works.

A full breakdown of what this part covers, how long it should take, and the most common mistakes candidates make is available in What You Need to Know About Pre-Trip Inspections in 2026. A candidate has to pass the vehicle inspection before the examiner moves on to the basic control skills test.

Part 2: The Basic Control Skills Test

The second part checks how well a candidate can control the vehicle in a confined space, away from other traffic. Examiners choose from a set of standard maneuvers, which may include:

  • Straight-line backing
  • Offset backing to the right
  • Offset backing to the left
  • Parallel parking (driver’s side)
  • Parallel parking (conventional)
  • Alley docking

A candidate is not tested on every maneuver. Examiners select a subset, and the exact combination can vary by state and by testing site.

How the Basic Control Skills Test Is Scored

Examiners track four things during this part of the test:

  • Encroachments. Every time the vehicle touches or crosses a boundary line or cone, it counts as an error.
  • Pull-ups. Stopping and reversing direction to reposition the vehicle counts as a pull-up. The first pull-up in each exercise is usually free, but extra pull-ups add up.
  • Looks. Getting out of the vehicle to check position counts as a “look.” Too many looks in one exercise can cost points.
  • Final position. The vehicle has to end the exercise in the exact spot the examiner describes. Missing the final position can fail that exercise even if the rest of the maneuver was clean.

Refusing to attempt a maneuver, or failing to complete one as instructed, can result in an automatic failure of this part of the test.

Part 3: The On-Road Driving Test

The third and final part takes place in live traffic. The examiner rides along and evaluates the candidate’s judgment, vehicle control, and ability to follow traffic laws under real conditions. This includes starting and stopping smoothly, shifting through gears, turning at intersections, changing lanes, merging, and responding to traffic signals and signs.

The on-road test also checks habits that don’t show up in a controlled yard, like mirror checks, following distance, and how a candidate handles hills, curves, and railroad crossings. Examiners are watching for consistent, safe behavior over the whole route, not just a handful of test-day maneuvers.

What to Expect on Test Day

A CDL skills test typically takes two to three hours from start to finish, including time between sections. Candidates need to bring a valid commercial learner’s permit, a medical certificate, and any other documents their state requires. The vehicle used for the test has to match the class of CDL the candidate is pursuing, so a Class A candidate tests in a Class A vehicle.

Most CDL schools, including United Truck Driving School, provide the test vehicle as part of training. This matters because a candidate who trains and tests in the same truck already knows its blind spots, mirror angles, and handling before test day.

Front view of red United Truck Driving School semi truck driving on a city street

What Happens If a Candidate Fails

Failing one part of the CDL skills test does not mean starting over from scratch. States generally allow a retest of just the failed section, though rules on timing and retest limits vary.

United Truck Driving School’s Class A CDL and Class B CDL programs prepare students for all three parts of the skills test through classroom instruction and hands-on practice in the yard and on the road. Contact a campus representative at the San Diego or Riverside campus, or visit the admissions page to learn more about enrollment and job placement support after graduation.

FAQs

How many parts does the CDL skills test have?

Three. A candidate must pass the vehicle inspection, the basic control skills test, and the on-road driving test, in that order.

Can a candidate skip the vehicle inspection and start with the driving portion?

No. The vehicle inspection comes first, and a candidate must pass it before moving on to the other two parts.

How long does the CDL skills test take?

Most candidates should plan for two to three hours at the testing site, including setup time between each part of the test.

What happens if a candidate crosses a boundary line during the basic control skills test?

That counts as an encroachment, which is scored as an error. Too many encroachments in one exercise can fail that part of the test.

Does the test vehicle have to match the CDL class a candidate is applying for?

Yes. A candidate testing for a Class A license must test in a Class A vehicle, and the same rule applies to Class B.

Are candidates tested on every backing maneuver during the basic control skills test?

No. Examiners choose a subset of maneuvers, such as straight-line backing, offset backing, or alley docking, rather than testing every possible exercise.

What does the on-road portion of the test evaluate?

It evaluates a candidate’s ability to drive safely in live traffic, including starting, stopping, shifting, turning, and following the rules of the road.

Does failing one part of the test mean starting over completely?

Usually not. Most states allow a candidate to retest only the section they failed, though rules vary by state. See What Happens If I Fail the CDL Test? for details.

Pre-Trip Inspections in 2026

Key Takeaways

Pre-trip inspections are a federal requirement enforced through California’s DMV, with real consequences for drivers and CDL candidates. Here is what to know heading into 2026.

  • Federal law requires a pre-trip inspection before every shift, after picking up a new trailer, and after any 10-hour break.
  • California’s DMV cross-checks ELD data during audits, so a pre-trip inspection that looks too short can draw scrutiny even if the paperwork is in order.
  • California has adopted the modernized CDL skills test. It uses fewer inspection items and allows the DMV’s official checklist, but examiners still expect drivers to use the right terms and show each step by hand.
  • Common test mistakes include reciting memorized lines without looking at parts, skipping hardware checks, and rushing the air brake check.
  • Practicing the same routine every time builds muscle memory. That leads to higher pass rates and safer habits on the job.
  • A pre-trip inspection is not just something drivers do for a test. It is a daily skill that protects a driver’s CDL, prevents violations, and helps avoid costly breakdowns.

What is a Pre-Trip Inspection and Why It Matters in 2026

Federal law requires every commercial driver to inspect a vehicle before driving it. California’s DMV enforces that rule through its own Commercial Driver Handbook and testing program. In 2026, that rule carries more weight. Testing standards have changed, enforcement is stricter, and skipping steps has real consequences.

When a Pre-Trip Inspection is Required by Law

Under FMCSA regulation, a driver may not operate a commercial vehicle without first being certain that it is in safe working order. California’s Commercial Driver Handbook builds on this rule. It adds that drivers must review the last vehicle inspection report and confirm that any problems were fixed before driving.

A pre-trip inspection is required in three situations:

  • At the start of a driver’s shift
  • Any time a driver picks up a new trailer
  • After a break of 10 hours or more

How Long a Pre-Trip Inspection Takes

A full inspection of a combination vehicle typically takes 30 to 45 minutes, depending on the vehicle and conditions. California’s own DMV Vehicle Inspection Test runs about 40 minutes for the standard version, and the DMV places no time limit on the modernized version of the test.

Rushing is a warning sign. The FMCSA now checks Electronic Logging Device (ELD) data against inspection records during audits. A pre-trip inspection that looks too short next to a driver’s logged time can draw attention, even before an inspector finds a defect.

The rules about how, when, and what drivers must inspect keep changing. The next section covers what applies right now in California.

2026 Rules and Regulations for Pre-Trip Inspections

“The driver is personally responsible for this inspection. You cannot rely on a mechanic’s word, a dispatcher’s assurance, or the previous driver’s report alone.”
— FMCSA, Federal Motor Carrier Safety Administration

The FMCSA sets the federal rules, and California’s DMV administers them through its own testing standards. Here is what changed for CDL testing in California, and what it means for new applicants.

The ELDT Mandate and What It Means for New CDL Applicants

FMCSA’s Entry-Level Driver Training rules are also known as ELDT. They apply to anyone getting a Class A or Class B commercial driver’s license for the first time, and to drivers moving up from Class B to Class A. These rules took effect in February 2022. Pre-trip inspection is a required part of the curriculum. Schools who are compliant with the ELDT mandate are required to teach pre-trip inspections both in the classroom and behind the wheel.

The Modernized CDL Testing Model in California

The American Association of Motor Vehicle Administrators, or AAMVA, redesigned the CDL skills test. FMCSA approved the changes. California has adopted this modernized model at many of its CDL Testing Centers. The updated Vehicle Inspection section uses fewer items. Applicants can also use the DMV’s official checklist to help guide the order of inspection. The goal is to test the skills a driver will actually use on the job.

California’s DMV also confirms there is no time limit for the Vehicle Inspection or Basic Control Skills portions of the test. Drivers are not penalized for being thorough.

Regulations explain what is required. A checklist explains how to do it, and the order matters more than most drivers realize.

Step-by-Step Pre-Trip Inspection Checklist

Knowing the rules is one part of the job. Walking around a 70-foot truck and knowing what to check at each stop is a different skill. A structured checklist, followed the same way every time, is what separates a thorough inspection from a missed defect.

In-Cab Checks: Gauges, Mirrors, Safety Equipment, and Emergency Kit

Closeup of semi truck gages with a hand pointing

Start the engine safely. Set the parking brake, put the gearshift in neutral or park, press the clutch, then start the engine. Oil pressure should rise to normal within seconds. Air pressure should build from 50 to 90 psi within three minutes. The temperature gauge should begin to climb. Check that mirrors are clean and adjusted. The windshield should have no damage. Confirm the emergency kit is present: spare fuses, three red reflective triangles, and a charged fire extinguisher.

Engine Compartment: Fluids, Belts, Hoses, and Steering Parts

With the engine off, look for puddles or dripping fluid. Check that oil, coolant, and power steering fluid are all above the refill marks. Inspect the belts on the alternator, water pump, and air compressor for cracks or fraying. Each belt should have no more than 3/4 inch of play. If a part is gear-driven instead of belt-driven, the driver should say so out loud during the test.

Front Axle, Tires, and Suspension

Check for leaf springs that are missing, shifted, cracked, or broken. Look at the rims for damage or illegal welds. Check tread depth and tire pressure with a gauge, not by kicking the tires. Confirm that hub oil seals are not leaking.

Driver Side Walk-Around: Fuel Tank, Battery Box, Frame, and Lights

Check that fuel tanks are secure, with tight caps and no leaks. Inspect the frame for cracks, broken welds, or holes. Confirm that all lights and reflectors are clean and working, and that they show the right color: red at the rear, amber elsewhere.

Rear Axle, Drive Tires, Brakes, and Driveshaft

Inspect the brake parts. Check the drums for cracks and the linings for wear. When brakes are released, push rod travel should not go past one inch when pulled by hand. Check the driveshaft for bends or cracks, and confirm the couplings are secure.

Coupling Area, Fifth Wheel, and Air Lines

Teacher stick pointing at semi truck airlines

Check that there is no gap between the fifth wheel and the trailer apron. Confirm the locking jaws are around the kingpin and the release handle is in the right position. Check the glad hand rubber gaskets for cracks, and listen for air leaks.

Trailer Inspection: Landing Gear, Doors, Lights, and Mud Flaps

Confirm the landing gear is raised and the crank handle is secure. Check the trailer lights, reflectors, and reflective tape. Confirm the doors open and close properly, and that mud flaps are in place and undamaged.

A full inspection covers the entire vehicle. For CDL candidates in California, an examiner scores a version of this same process, and the standards are stricter than most students expect.

How to Pass the Pre-Trip Portion of the CDL Skills Test

California allows applicants to use the DMV’s official Vehicle Inspection Checklist during the test. Examiners still expect drivers to point to or touch each item and explain what they are checking, so the checklist works as a guide, not a script.

The pre-trip inspection is one of three parts of the CDL skills test. It is also the part most students underestimate. California’s own guidance for the Vehicle Inspection Test is clear: drivers must point to or touch critical safety features and explain each one to the examiner.

Common Mistakes That Cost Students a Passing Score

With so many things steps to the pre-trip inspection, it’s fairly common or the student that’s testing to make mistakes. Some of the few most common ways that points get deducted are:

  • Reciting memorized lines without looking at the parts
  • Forgetting hardware checks, like cotter pins or lug nuts, which can mean an automatic fail
  • Not knowing the minimum and maximum marks for fluid levels
  • Rushing the brake check. California treats a wrong air brake procedure as an automatic fail for the whole Vehicle Inspection test

Memory Tricks and Routines That Build Confidence

Students who practice the inspection in the same order every time, every day, for at least two weeks before the test, pass at higher rates. Building that muscle memory through daily repetition is what turns a memorized script into a routine a driver can perform under pressure.

How United Truck Driving School Trains Students on Pre-Trip Inspection

Most CDL programs teach students how to pass the pre-trip part of the exam. United Truck Driving School trains students to do the inspection correctly on the job.

United’s Class A CDL and Class B CDL programs include classroom instruction and behind-the-wheel training. Both programs cover all three parts of the California CDL skills test: pre-trip inspection, backing, and the road test. Most students finish in as little as three weeks, depending on the program, so pre-trip mastery has to happen fast. Instructors teach a repeatable routine from day one.

Since the ELDT rules took effect, United’s classroom curriculum has grown. It now covers not just what to check, but how to document defects and meet requirements. Students learn inspection as a skill they will use every working day, not a script they memorize and forget.

A driver who inspects thoroughly from day one stays compliant and avoids violations. That habit protects a commercial driver’s license for the long run.

Contact United Truck Driving School to learn about Class A, Class B, and CDL-A plus Passenger programs at the San Diego or Riverside campus. Call a campus representative or visit the admissions page to learn about enrollment or ask about job placement support.

FAQs

Can a driver just describe each part instead of touching it?

No. California’s DMV requires drivers to point to or touch each part while explaining what they are checking.

Why does the brake check matter so much during the test?

A wrong air brake procedure ends the CDL skills test right away in California. Drivers must show that air pressure builds correctly and that push rod travel stays under one inch.

What is the best way to prepare for the pre-trip portion of the test

Practicing the same routine every day for at least two weeks builds the muscle memory examiners look for. Practicing in different lighting conditions also helps, since real inspections happen before dawn and after dark.

Can drivers use a checklist during California’s CDL skills test?

Yes. California’s DMV allows applicants to use the official Vehicle Inspection Checklist during the modernized version of the test.

What are the three inspection requirements for a commercial vehicle

Federal law requires three things: a pre-trip inspection before driving, a post-trip inspection when defects are found, and a review of the last inspection report before each trip. Drivers must also confirm that any noted problems were fixed before driving.