Tennessee CDL Practice Test

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🚛 Tennessee CDL Permit Practice Test Guide

Pass Your Tennessee CDL Written Test the First Time

DMV-Written-Test helps future commercial drivers in Tennessee get ready for the CDL knowledge exam with realistic practice tests based on the 2025 Tennessee Commercial Driver License (CDL) Manual. These exams are designed to reflect the official test administered by the Tennessee Department of Safety and Homeland Security (TDOSHS).

Whether you’re pursuing a Class A, B, or C CDL, our practice tests include questions on General Knowledge, Air Brakes, Combination Vehicles, and Tennessee-specific CDL laws.

For official CDL manuals, license procedures, and test booking, visit the Tennessee CDL page:
https://www.tn.gov/safety/driver-services/commercial-driver-license.html

Start preparing now and pass your Tennessee CDL permit test on the first try!

📘 What to Expect on the Tennessee CDL Knowledge Test

Aspect Details
Number of Questions 50 (General Knowledge)
Passing Score 80% (40 correct answers required)
Test Format Multiple Choice
Time Limit 60 minutes (approximate)
Minimum Age 18 (21 for interstate/HazMat)
Test Languages English, Spanish (HazMat in English only)
Endorsement Areas HazMat, Tankers, Passenger, School Bus, Air Brakes
Retake Policy Retake allowed next business day (retest fee may apply)

❓ Frequently Asked Questions

How do I qualify for a CDL permit in Tennessee?
You must be at least 18 years old, hold a valid Tennessee driver’s license, pass a vision test, and take the CDL General Knowledge exam.
Is ELDT required in Tennessee?
Yes. Entry-Level Driver Training (ELDT) is federally mandated for new CDL applicants and certain endorsements.
How long is the CDL permit valid in Tennessee?
A Tennessee Commercial Learner’s Permit (CLP) is valid for 180 days and can be renewed one time.
Can I take the CDL test in Spanish?
Yes. The General Knowledge exam is offered in Spanish. The HazMat exam must be taken in English.
What happens if I fail the CDL knowledge exam?
You may retake the test after one business day. A retesting fee may apply.
Do I need a Tennessee license before applying for a CDL?
Yes. A valid Tennessee driver’s license is required before applying for a CDL.
Are endorsement tests separate?
Yes. Each endorsement, such as Passenger, School Bus, or HazMat, requires a separate written test.
Can I transfer an out-of-state CDL to Tennessee?
Yes. You must transfer your CDL within 30 days of becoming a Tennessee resident.
What documents are needed for a Tennessee CDL?
You’ll need proof of identity, Tennessee residency, lawful presence, and your Social Security number.
Is TSA clearance required for HazMat endorsements?
Yes. A TSA background check is required before receiving or renewing a HazMat endorsement.