CDL and CLP applicants are required to take one or more knowledge tests, depending on the class of CDL or CLP and the endorsements
needed. Information needed to pass commercial knowledge tests can be found in the Oregon Commercial Driver Manual
. The tests are offered in English only and translators are not permitted.
You must pay test fees
prior to taking any test. Be prepared to make separate payments for your testing and licensing fees
Commercial Knowledge Tests:
- General Knowledge Test - Required for CLP applicants.
- Combination Vehicles Test - Required for all CLP applicants to operate Class A combination vehicles.
- Air Brakes Test - Required to operate vehicles with air brakes.
- Passenger Endorsement Test - Required to operate vehicles carrying 16 persons or more, including the driver.
- Tank Endorsement Test - Required to haul liquids or gas in bulk.
- School Bus Endorsement Test - Required to transport pre-primary, primary or secondary school students from home to school, from school to home, or to and from school sponsored events.
- Hazardous Materials Endorsement Test - Required to haul hazardous materials or waste in amounts which require placards. To renew a CDL with a hazardous materials endorsement you must pass the hazardous materials endorsement knowledge test prior to renewal.
- Doubles/Triples Endorsement Test - Required to pull double or triple trailers.
Note: Refer to the "What Sections Should You Study" table in the Oregon Commercial Driver Manual to determine the specific sections to study in order to obtain the desired endorsement(s). Endorsement knowledge tests cover not only material from individual endorsement sections, but also from the section on driving safely. You will need to be familiar with the driving safely section when applying for any class of CDL, CLP or CDL endorsement.
If You Have a CDL or CLP from Another Jurisdiction:
DMV will waive all CDL knowledge tests EXCEPT the Hazardous Materials Endorsement Test if you surrender a current, valid CDL from another jurisdiction for a comparable Oregon CDL.
CLPs from other jurisdictions may not be used to waive Oregon commercial knowledge tests.
Third Party CDL Testers
CDL drive tests are also available from Third Party CDL Testers.
Commercial Skills Test
Before taking a CDL skills test you must obtain and hold an Oregon Commercial Learner Permit (CLP) for 14 days. Unexpired Oregon commercial instruction permits, issued before September 26, 2016, may be used for CDL skills testing purposes as long as you have also passed the required commercial knowledge tests required for issuance of your CDL. Commercial skills tests must be conducted in English only and translators/interpreters are not permitted.
DMV will not conduct a commercial skills test in a vehicle that is:
- Transporting any load;
- Contains hazardous materials:
- Has more than one trailer;
- Pulls a trailer that has no brakes or uses surge brakes; or
- Is clearly illegal or unsafe.
CDL Skills Tests consists of three parts:
- Pre-trip Vehicle Inspection- You will be asked to complete a pre-trip inspection of your vehicle and explain to the examiner what you should inspect and why. Section 11 of the Oregon Commercial Driver Manual tells you what to inspect and how to inspect it.
- Basic Control Skills (BCS) - You will be asked to perform backing maneuvers to demonstrate your ability to exercise basic control of your vehicle. Section 12 of the Oregon Commercial Driver Manual contains additional information about this portion of the CDL skills test.
- On-Road Driving Test- You will be tested on your skill to safely operate your vehicle in a variety of traffic situations that may include left and right turns, intersections, railway crossings, curves, single or multi-lane roads, streets, or highways. The examiner will tell you where to drive. Section 13 of the Oregon Commercial Driver Manual explains more about this test.
Waiver of CDL Skills Testing Requirements for Qualified Military CMV Operator
DMV may waive the Class A or B CDL skills testing requirements for qualified military commercial motor vehicle operators under the Oregon Military Skills Test Waiver program. Passenger and school bus endorsement skills tests will not be waived under the Oregon Military Skills Test Waiver program. To apply for a military skills test waiver you must:
- Hold or be eligible for an Oregon Class C driver license;
- Provide proof that you are a U.S. citizen or lawful permanent lawful resident;
- Be currently employed, or have been employed within the previous 12 months, in a military specialty in which a primary duty involves operation of a commercial motor vehicle. Currently, only Army primary MOS 88M, Marine primary MOS 3531 and Air Force primary AFSC 2T1X1 have been identified as specialties in which a primary duty is operation of a commercial motor vehicle;
- Complete an Oregon Application for Military Skills Test Waiver (Form 735-7390), or equivalent application from DOD or another state, signed by you and your commanding officer;
- Provide a copy of your DD 214 or, if you are currently in military service, a copy of your Military Identification Card;
- Provide a copy of your military vehicle operator’s permit (OF346 or DA Form 5984-E) that DMV can use to properly classify the type of commercial motor vehicle that you operate, or operated. DMV cannot waive the skills tests unless the vehicle can be associated with a specific federal CMV classification that can be verified; and
- Otherwise meet the requirements described in Federal Motor Carrier Safety Regulation 383.77.
Send the Oregon Application for Military Skills Test Waiver (Form 735-7390) along with copies of other required documents to:
CDL Policy Unit
1905 Lana Ave NE
Salem, OR 97314
If DMV is able to determine that you meet the qualifications for the military skills test waiver, a copy of your application and an approval letter, with instructions, will be mailed to you. If you do not meet the qualifications for the military skills test waiver, DMV will return your documents to you.