State guide · Updated October 2026
South Carolina Driving Laws (2026): Speed Limits, Insurance and More
South Carolina sits in the South census region, with Columbia as its capital and Charleston and Columbia as its biggest cities. Here you will find the South Carolina driving laws drivers ask about most, covering speed limits and phone use through coverage, taxes, inspections and riding.
Every section below answers one question in detail, with the facts, the numbers and how it compares nationally with sources; data was reviewed October 25, 2026 for South Carolina.
South Carolina driving laws: speed limits
The highest speed limit in South Carolina is 70 mph. Interstates carry limits of up to 70 mph in town and country alike.
| South Carolina: Top posted speed | 70 mph |
|---|---|
| Rural freeways | 70 mph |
| Interstates in cities | 70 mph |
On major roads such as I-26 and I-95, signs are frequently lower than 70 mph, especially around Charleston and in work zones.
Motorists also have to keep a speed that suits rain, fog and traffic, even below the posted number; police can cite unsafe speed on its own.
In short, under South Carolina driving laws: max speed limit, 70 mph.
South Carolina driving laws: cell phone and texting law
Only hands-free. South Carolina has a hands-free law: drivers cannot hold a phone to make calls or send messages on the road. Bluetooth calls and mounted navigation remain legal.
| South Carolina: Hand-held phone use (all drivers) | Banned |
|---|---|
| Sending texts while driving | Banned |
| Total phone ban for teens | No |
South Carolina's hands-free law took effect September 1, 2025.
Under the South Carolina driving laws, a mounted phone, spoken commands and one touch to pick up a call or start navigation are permitted; picking it up, even at a red light, is the offense.
At a glance, under South Carolina driving laws: phone law, hands-free law.
South Carolina driving laws: driving age and teen licenses
Teens in South Carolina may obtain a learner's permit at 15 and an intermediate (provisional) license at 15, with night and passenger limits after that.
| South Carolina: Learner's permit | Age 15 |
|---|---|
| Intermediate (provisional) license | Age 15 |
| Supervised driving hours | 40 (10 at night) |
| Unrestricted license | After 12 months licensed or at 17, whichever comes first (minimum 16) |
Prior to the road test, permit holders in South Carolina need 40 hours (10 at night) of supervised driving.
At a glance, under South Carolina driving laws: learner's permit age, permit at 15.
South Carolina driving laws: minimum car insurance
South Carolina requires motorists to carry at least 25/50/25 in liability insurance: $25,000 for injuries to one person, $50,000 for all injuries in one accident and $25,000 for property damage. You also need uninsured motorist (UM) coverage.
| South Carolina: Injury limit per person | $25,000 |
|---|---|
| Per-accident injury coverage | $50,000 |
| Damage to property | $25,000 |
| Extra required coverage | UM |
| Fault system | At-fault |
| Must you insure | Yes |
South Carolina is an at-fault state, so the at-fault driver pays for the other people's injuries and damage through liability coverage.
Also mandatory in South Carolina: uninsured motorist (UM) coverage.
A minimum policy often falls short in a serious crash: hospital bills and a new car can top $50,000 in one crash.
Advisers often recommend at least 100/300/100, because anything above your limits can be taken from your savings.
In short, under South Carolina driving laws: car insurance, 25/50/25.
South Carolina driving laws: car sales tax
South Carolina charges a 5% state infrastructure maintenance fee on vehicles you buy, capped at $500. There are no additional local taxes.
| South Carolina: State rate | 5% (infrastructure maintenance fee) |
|---|---|
| Local add-ons | No |
| Trade-in credit | Yes |
| Maximum tax | $500 |
| Example: $30,000 car | $500 |
Instead of sales tax, South Carolina charges a 5% infrastructure maintenance fee (IMF), capped at $500 per vehicle.
- A $22,000 car in South Carolina: roughly $500 in state tax
- A $38,000 car in South Carolina: roughly $500 in state tax
- A $55,000 car in South Carolina: roughly $500 in state tax
A trade-in lowers the South Carolina driving laws: a $30,000 car with a $5,000 trade-in owes roughly $500 instead of $500.
In short, under South Carolina driving laws: car sales tax, 5%.
South Carolina driving laws: car inspection and emissions
No. South Carolina does not require periodic safety inspections or emissions tests for passenger cars.
| South Carolina: Safety check | Not required |
|---|---|
| Smog check | Not mandatory |
Without periodic inspections in South Carolina, maintaining brakes, lights and tires in shape is the owner's job.
Bottom line, under South Carolina driving laws: car inspection, no regular inspection.
South Carolina driving laws: license and registration deadlines for new residents
After moving to South Carolina, you have 90 days to obtain a South Carolina driver's license, and 45 days to register your car.
| South Carolina: License deadline | 90 days |
|---|---|
| Plate deadline | 45 days |
| Insurance minimum | 25/50/25 |
| Inspection rule | No regular inspection |
Checklist for South Carolina driving laws
- Get a South Carolina driver's license: 90 days. Take proof of identity, your SSN and two proofs of address when you visit the SCDMV (REAL ID rules).
- Buy car insurance at or above the minimum: South Carolina requires 25/50/25. A policy is usually needed before registration.
- Vehicle check: No regular inspection, though a VIN check may be needed for an out-of-state vehicle.
- Title and register the car: 45 days at the SCDMV.
The clock generally starts when you take a job, rent a home or enroll children in school in South Carolina, not on the day the moving truck shows up.
In short, under South Carolina driving laws: new resident deadline, 45 days.
South Carolina driving laws: motorcycle helmet law
Only for motorcyclists under 21. In South Carolina, motorcycle riders 20 and younger must wear a helmet; adults 21 and older can legally ride without one. Whether you are on I-26 near Charleston or on I-85, the law stays the same.
| South Carolina: Helmets mandatory for | Riders 20 and younger |
|---|---|
| Law type | Partial (age-based) |
| Adults can ride without a helmet | Yes |
Riders 20 and younger are required to wear a helmet under the South Carolina driving laws; from age 21 the choice is the rider's.
NHTSA estimates that helmets prevent roughly 37% of rider deaths in crashes, and around 41% of passenger deaths.
A legal helmet indicates the DOT label on the back; novelty helmets that lack it are not legal.
Bottom line, under South Carolina driving laws: helmet law, under 21.
South Carolina driving laws: lane splitting
No. Lane splitting and lane filtering are illegal in South Carolina. Each motorcycle gets its own full lane, and motorcyclists are not allowed to pass between vehicles or split traffic.
| South Carolina: Splitting in moving traffic | Not legal |
|---|---|
| Filtering at a stop | Not legal |
| Law dates from | — |
With no law allowing it, South Carolina driving laws counts as improper passing, and a crash while splitting can undercut the rider with insurers.
In short, under South Carolina driving laws: lane splitting, not allowed.
Where the South Carolina driving laws stand out
- South Carolina ranks near the national average of the national range on all nine topics, so no single law in the South Carolina driving laws will surprise newcomers from nearby states.
Driving around South Carolina
Most long trips use I-26, I-95 and I-85, which tie together Charleston, Columbia and Columbia. Each of these routes falls under South Carolina driving laws.
You get a license from the SCDMV, and registration and titles come from the SCDMV.
Every law on this page applies statewide, from Charleston to small towns.
Next door
- Georgia: 7% for car sales tax, against 5%; helmet law All motorcyclists (vs. Under 21)
- North Carolina: 3% for car sales tax, against 5%; car insurance 50/100/50 (vs. 25/50/25); helmet law of All riders instead of Under 21
Questions about the South Carolina driving laws
Do the South Carolina driving laws change for trucks?
The majority of roads in South Carolina use the same number for vehicles and trucks; look for truck-only limits.
Will police pull over motorists solely for breaking the South Carolina driving laws?
Yes. In South Carolina it is typically a primary offense, so you can be pulled over for it alone.
Is solo driving at 15 allowed under the South Carolina driving laws rules?
Yes, with an intermediate license and within its limits.
What happens if I drive without South Carolina driving laws?
Driving without coverage in South Carolina can bring fines, suspension of your license and plates, and personal liability for any damage.
Is the South Carolina driving laws due on used vehicles?
Yes. A used car is taxed the same way, and sales between individuals may be valued at a minimum or a standard value.
Is a South Carolina driving laws needed to sell a car?
Generally not in South Carolina, but a pre-purchase check is smart.
Must adult riders obey the South Carolina driving laws?
No. Only motorcyclists 20 and younger must wear one in South Carolina.
Is filtering at a stoplight part of South Carolina driving laws?
No. Riding between stopped vehicles at a light is not allowed in South Carolina as well.