IL · CDL Class A

Illinois Class A CDL Practice Questions

This Illinois Class A CDL practice page is tied to the 100-question bank saved for this run. The bank covers general commercial-driving knowledge, air brakes, combination vehicles, hazardous materials, tank vehicles, and doubles/triples. Those specialty subjects are conditional: a Class A applicant does not automatically need every endorsement. Illinois defines Class A as a combination with a gross combination weight rating of at least 26,001 pounds when the towed vehicle has a gross vehicle weight rating above 10,000 pounds. Applicants generally begin with an Illinois Commercial Learner's Permit, complete the knowledge tests that match their vehicle and endorsements, satisfy applicable medical and Entry-Level Driver Training requirements, hold the CLP for at least 14 days, and then complete skills and road testing in a representative vehicle.

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Every test draws only from the Illinois CDL Class A question bank.

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LICENSING GUIDE

What to know before you test

Use this overview together with the latest official guidance linked below.

Confirm that Class A is the correct Illinois classification

Illinois Class A covers combinations with a GCWR of 26,001 pounds or more when the GVWR of the towed vehicle is more than 10,000 pounds. The Class A path requires the General (Core) Knowledge test and the Combination Knowledge test. Air Brake testing applies when the intended vehicle is so equipped, and endorsement tests apply only when the cargo, vehicle, or operation requires them. Illinois also notes that the T endorsement applies to Class A, while triple trailers are not permitted on Illinois highways.

Obtain the Illinois commercial learner's permit

An original Illinois CLP applicant must be at least 18 for intrastate operation and at least 21 for interstate commerce or passenger transportation. The applicant must hold a valid Illinois CDL or non-CDL base license, provide proof of legal presence, self-certify the appropriate CDL medical driving status, pay the applicable fee, and pass the written tests required for the desired Class A vehicle and endorsements. The CLP is valid for one year, and the base license must remain valid for that CLP period.

Complete ELDT before the Class A skills test when it applies

Federal Entry-Level Driver Training requirements apply to a first Class A or Class B CDL, a Class B-to-A upgrade, and first-time P, S, or H endorsements, subject to the listed exceptions. Illinois requires the applicable ELDT to be completed with a provider registered with FMCSA before the driver can be scheduled for the relevant skills test. A first-time hazardous-materials endorsement applicant must complete the applicable ELDT before taking the hazardous-materials knowledge test.

Hold the CLP for 14 days and test in a representative vehicle

Illinois requires CLP holders to wait at least 14 calendar days from the permit issue date before conducting CDL skills and drive testing. The skills process is divided into Pre-Trip Inspection, Basic Control Skills, and the Driving and Road Test. The vehicle must represent the desired classification, restrictions, and endorsements, and Illinois requires proof of vehicle insurance, valid license plates, and current vehicle safety inspections before testing. Testing in equipment that does not demonstrate the desired privileges can result in restrictions on the CDL.

REQUIREMENTS OVERVIEW

Illinois CDL Class A requirements

Requirements depend on the applicant and can change. Verify each item with the cited agency.

age

Illinois CDL and CLP applicants

Illinois requires an applicant to be at least 18 to obtain a CDL or CLP for intrastate operation and at least 21 to operate in interstate commerce or to transport passengers.

documents

Applicants for an original Illinois Class A CLP and applicants appearing for skills testing

An original CLP applicant must hold a valid Illinois CDL or non-CDL base license, provide proof of legal presence, self-certify the applicable CDL medical driving status, and pay the required fee. For skills and road testing, Illinois also requires proof of vehicle insurance, valid license plates, and current vehicle safety inspection documentation for the test vehicle.

tests

Illinois Class A applicants

Class A applicants must pass General (Core) Knowledge and Combination Knowledge testing, plus Air Brake and applicable endorsement tests when required by the intended vehicle or operation. After the CLP waiting period, skills testing consists of Pre-Trip Inspection, Basic Control Skills, and the Driving and Road Test. Applicants subject to ELDT must complete the applicable training before the relevant State test.

passing

Illinois CDL knowledge and skills-test applicants

Applicants must successfully pass the required written, knowledge, skills, and road examinations for their path. Illinois' current CDL page also states that a third failure of the same CDL exam triggers a 30-day waiting period; six failures trigger 90 days, and nine failures trigger a one-year waiting period.

applicability

Illinois Class A applicants

Illinois Class A applies to a combination of vehicles with a GCWR of 26,001 pounds or more when the towed vehicle has a GVWR above 10,000 pounds. Endorsement and equipment-specific requirements depend on the actual vehicle, cargo, and operation; air-brake, hazmat, tank, and double/triple topics are not universal requirements for every Class A applicant.

OFFICIAL REFERENCES

Sources for this guide

Open the current source before relying on licensing details.

Commercial Driver's License (CDL) and Commercial Learner's Permit (CLP)Original Illinois CLP; CDL classifications; endorsements; medical; testingOpen source ↗ Entry-Level Driver Training (ELDT)Applicants subject to ELDT and timing requirementsOpen source ↗ Commercial Driver's License FAQsMedical self-certification; testing failure waiting periodsOpen source ↗ Commercial Driver's License (CDL) SchedulingSkills-test appointment eligibilityOpen source ↗ Entry-Level Driver Training (ELDT)About the ELDT Regulations; Training Provider RegistryOpen source ↗