If you drive in Tennessee, the rules of the road cover licensing, insurance, speed, phone use, seat belts, DUI, school buses, and what you owe at a crash scene. Break them and you’re looking at fines, license points, suspension, or in serious cases jail time. The details below are the ones that most often trip drivers up.
License, Registration, and Insurance
Every driver needs a valid license from Tennessee or another recognized jurisdiction, and new residents have 30 days to convert an out-of-state license.1Justia Law. Tennessee Code 55-50-301 Getting a Tennessee license involves a vision screening, a written knowledge test, and a road skills exam, though the road test is waived if you surrender a valid license from another state. Driving with no valid license at all is a Class C misdemeanor.2Justia Law. Tennessee Code 55-50-351
Vehicles must be titled and registered with the Department of Revenue, again within 30 days of moving to Tennessee.3Tennessee Department of Revenue. Title and Registration The standard passenger vehicle registration fee is $26.50, and local wheel taxes may push the total higher.4Tennessee Department of Revenue. VR-5 – Registration Fees for Hybrid or Electric Vehicles
Every registered vehicle has to carry minimum liability insurance, written as “25/50/25”:
- $25,000 for bodily injury per person
- $50,000 for total bodily injury per accident
- $25,000 for property damage per accident
Tennessee runs an electronic verification system, so a lapsed policy can trigger notice letters, fines, and a registration suspension.5Tennessee Department of Revenue. Financial Responsibility Law
Speed Limits and Lane Use
Unless a posted sign says otherwise, Tennessee’s default speed limits are:6Justia Law. Tennessee Code 55-8-152
- 70 mph on interstate highways
- 65 mph on divided highways without full access control
- 30 mph in urban areas
- 15 mph in school zones during designated hours
Fines climb in work zones when construction crews are present.7Justia Law. Tennessee Code 55-8-153 The left lane on a multi-lane highway is for passing, and camping there when you’re not overtaking can draw a citation.8Justia Law. Tennessee Code 55-8-115
Truck tractors and semitrailers have extra lane rules on interstates and divided highways with three or more lanes in each direction. In designated stretches, they must stay in the right two lanes except when passing. A violation is a Class C misdemeanor with a fine of up to $50.9Justia Law. Tennessee Code 55-8-195
Signaling, Right-of-Way, and Pedestrians
Turn signals must be on continuously for at least 50 feet before you turn, merge, or change lanes.10Justia Law. Tennessee Code 55-8-143 – Signals for Turns Brake lights have to work too.
At an intersection without signals, the driver on the left yields to the driver on the right when they arrive together. At four-way stops, first to arrive goes first; a tie goes to the driver on the right.11Justia Law. Tennessee Code 55-8-128 Roundabouts flip the usual instinct: traffic already circling has the right-of-way, and if you’re entering a multi-lane roundabout you need to yield to vehicles in every lane, not just the one nearest you.
Drivers must yield to pedestrians in a crosswalk when the pedestrian is on the driver’s half of the road, or close enough on the other half to be in danger. In school zones with active warning flashers, you have to come to a complete stop and stay stopped until the pedestrian has finished crossing your side.12Justia Law. Tennessee Code 55-8-134 – Pedestrians Right-of-Way in Crosswalks You also can’t pass another vehicle that has stopped at a crosswalk, even if you don’t see the reason it stopped.
Seat Belts and Child Restraints
Seat belt use is a primary offense, so an officer can pull you over solely for being unbuckled. Everyone in the front seat must wear a belt. In the back seat, the requirement applies to passengers aged 16 and 17.13Justia Law. Tennessee Code 55-9-603 – Use of Safety Belts in Passenger Vehicles A first violation is $30; a second or later violation is $55.
Child restraint rules go further:14Justia Law. Tennessee Code 55-9-602
- Under age 1 or under 20 pounds: rear-facing car seat
- Ages 1 through 3 and at least 20 pounds: forward-facing car seat with a harness
- Ages 4 through 8: booster seat, unless the child is at least 4 feet 9 inches tall, in which case a regular seat belt is allowed
Phones and Distracted Driving
Tennessee’s Hands-Free Law bans holding a cellphone or any standalone electronic device while driving. That covers texting, dialing, watching video, and holding a phone to your ear. Hands-free voice calls and GPS are fine as long as you’re not holding the device.15Justia Law. Tennessee Code 55-8-199 – Prohibited Uses of Wireless Telecommunications Devices or Stand-Alone Electronic Devices
- First offense: $50, with the option to take a driver education course instead
- Third or later offense, or any violation causing a crash: $100
- Violation in a school zone or work zone: $200
Drivers under 18 pick up seven points on their record for a second or later violation. Commercial drivers can lose their CDL for repeat offenses.
DUI Thresholds and Penalties
Tennessee’s blood alcohol limits are:
- 0.08% for standard drivers
- 0.04% for commercial drivers
- 0.02% for drivers under 21
A first DUI carries a minimum 48 consecutive hours in jail, a $350 to $1,500 fine, and a one-year license revocation. If your BAC was 0.15% or higher, the minimum jail time is seven consecutive days.16Justia Law. Tennessee Code 55-10-402 Repeat offenses add longer jail time, bigger fines, and a mandatory ignition interlock device.17Justia Law. Tennessee Code 55-10-417 A fourth DUI is a Class E felony with at least one year in prison and no probation.
Drug-impaired driving is charged under the same DUI statute, but there is no numeric “per se” limit for controlled substances the way there is for alcohol. Tennessee has no specific THC threshold that automatically triggers a DUI. Prosecutors rely on field sobriety tests, officer observations, and blood test results showing the presence of drugs.
Implied Consent
Driving on Tennessee roads counts as consent to breath or blood testing when an officer has reasonable grounds to suspect impairment. Refusing the test triggers an automatic license suspension whether or not you’re ever convicted of DUI, and the refusal itself is a separate administrative penalty.18Justia Law. Tennessee Code 55-10-406
School Buses and the Move Over Law
When a school bus extends its stop arm and turns on its flashing red lights, traffic in both directions must stop. The only exception is a divided highway with a physical median or barrier; drivers on the other side don’t have to stop. A center turn lane doesn’t count as a divider, so if that’s all that separates you from the bus, you stop.19Justia Law. Tennessee Code 55-8-151 – Overtaking and Passing School Bus Many districts now use bus-mounted cameras to catch violators.
The move over law requires you to change lanes away from any stopped emergency vehicle, tow truck, highway maintenance vehicle, solid waste truck, or utility service vehicle with its flashing lights on. If you can’t safely change lanes, slow to a reasonable speed as you pass. A violation can bring a fine of up to $500 and up to 30 days in jail.20Tennessee Department of Transportation. Move Over Law
What to Do After a Crash
If you’re in a crash that causes any injury, death, or damage to an occupied vehicle, you have to stop, give the other driver your name, address, and vehicle registration number, and show your license if asked. You also have to provide reasonable aid to anyone injured, including arranging transportation to a hospital if it’s needed or requested.21Justia Law. Tennessee Code 55-10-103 – Duty to Give Information and Render Aid These duties apply on public roads and also in shopping center parking lots, apartment complexes, and other areas generally open to the public.
You also have to file a crash report with the Department of Safety and Homeland Security if the accident involved any death or injury, property damage over $1,500 to any person involved, or damage over $400 to state or local government property.22Tennessee Department of Safety and Homeland Security. Owner/Operator Information Leaving the scene of an injury crash can be charged as felony hit-and-run.
Points, Suspensions, and Out-of-State Tickets
Tennessee tracks violations through a points system. Speeding, failure to yield, improper lane changes, and similar offenses add points to your record. Accumulate 12 or more points within a 12-month window and you face a mandatory hearing and possible suspension.23Cornell Law Institute. Tennessee Comp. R. and Regs. 1340-01-04 Point totals per offense vary, but minor tickets stack up faster than most drivers expect.
Reckless driving is a Class B misdemeanor, punishable by up to six months in jail and a fine of up to $500, plus a mandatory additional $50 fine.24Justia Law. Tennessee Code 55-10-205 – Reckless Driving Tennessee is also part of the Interstate Driver License Compact, so a traffic conviction in another state gets reported home and treated as if it happened in Tennessee for suspension and points purposes.25Justia Law. Tennessee Code 55-50-902 – Interstate Driver License Compact A ticket you pick up on a road trip doesn’t stay behind at the state line.