How many questions are on the Tennessee TDOS knowledge test?
The test has 30 multiple-choice questions with a single combined score. You need 80% (24/30) to pass — there are no separate sections in Tennessee.
What is the passing score?
You need 80% overall — that means at least 24 out of 30 correct. Tennessee uses a single combined score with no separate sections. You can miss up to 6 questions and still pass.
What happens if I fail?
You must wait 1 day to retake the knowledge test. There's no limit on attempts, but you'll need to pay the $2 application fee again. For the road test, wait times vary by error count (1 day for 7–9 errors, up to 30 days for 16+ errors).
Is the test timed?
No, the real Tennessee TDOS test has no time limit. Take your time and read carefully. Our practice exam uses a 30-minute timer to simulate slight pressure, but the real test lets you go at your own pace.
How old do I need to be for a learner's permit?
Age 15 is the minimum age to apply for a Tennessee learner permit. You must hold the permit for at least 180 days before applying for an Intermediate Restricted license. GDL rules do not apply to anyone 18 or older, or those under 18 who have graduated high school or received a GED.
What documents do I need to bring?
For a first-time permit or license, bring:
- Proof of identity — birth certificate, passport, or other government-issued ID
- Social Security card or document showing your SSN
- Two proofs of Tennessee residency — utility bill, bank statement, lease, etc.
- Parent/guardian must be present if you're under 18
- School Compliance Verification Form if under 18 (Consequences for school violations law)
Does Tennessee use "DUI," "OWI," or "DWI"?
Tennessee uses DUI — Driving Under the Influence (TCA.010). Key numbers: 0.08% BAC limit (21+), 0.02% BAC (under 21), 0.20%+ increases the minimum jail time to 7 days on a first offense. Refusing a chemical test results in a 12-month court-imposed suspension.
Is cannabis legal in Tennessee?
Both recreational and medical marijuana are illegal in Tennessee. Driving impaired by any substance — including cannabis, prescription medications, or over-the-counter drugs — is a DUI offense. This comes up on the test.
How many hours of practice driving do I need?
50 hours of supervised practice driving, including at least 10 hours at night. Your supervisor must be a licensed driver at least 21 years old, seated in the front passenger seat at all times.
What are the curfew restrictions for new drivers?
Learner permit holders under 18 may not drive between 10 PM and 6 AM. Intermediate Restricted license holders may not drive between 11 PM and 6 AM unless they can demonstrate good cause (emergencies, school, or work-related activities). This curfew applies during both the permit and intermediate phases.