Regulatory signs — South Carolina Permit Test
Regulatory signs on the South Carolina permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.
The rules
The No Left Turn sign means a left turn is prohibited.
Left turns are banned where crossing oncoming traffic is too dangerous or would block the intersection.
No Left Turn
The No Right Turn sign means a right turn is prohibited.
A banned right turn usually protects a busy crosswalk or a road you cannot safely enter.
No Right Turn
The No U-Turn sign means a U-turn is prohibited.
A U-turn crosses every lane of traffic, which is too dangerous where this sign is posted.
No U-Turn
Black and white speed limit signs show the maximum legal speed allowed in ideal conditions.
In rain, fog or heavy traffic the safe speed is lower than the posted maximum.
Speed Limit Signs—These black and white signs indicate the maximum legal speed allowed in ideal conditions.
The One-Way Street sign means traffic flows only in the direction of the arrow; do not turn in the opposite direction.
Every car on a one-way street comes from the same direction, so a car going the other way meets them head on.
One-Way Street—These signs tell you that traffic flows only in the direction of the arrow.
On the test
What does this sign mean?
No left turn. Left turns are banned where crossing oncoming traffic is too dangerous or would block the intersection. South Carolina Driver's Manual, p.68: “No Left Turn”
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
What it costs
- One payment, once — not a subscription. Nothing renews and there is nothing to cancel, for an exam you sit one time.
- Free to start: a 10-question test and the first section of cards. No sign-up and no account.
- Paying opens the rest of the cards, unlimited full-length practice tests, and retests built from exactly the questions you got wrong.
- Every level up to Prepared — 3 tests passed in a row.
- Do the work, fail the real exam, and we refund you.
All South Carolina permit topics
Where these come from
Every rule here is checked against South Carolina Driver's Manual, published by the South Carolina Department of Motor Vehicles, and against the state code itself. Last checked 2026-10-03.
- src/assets/drivers-manuals/SC.pdf (South Carolina Driver's Manual, South Carolina Department of Motor Vehicles, created 2026-03-30, retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SC.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- https://dmv.sc.gov/forms-and-manuals
- https://dmv.sc.gov/driver-services/drivers-license/testing (read 2026-10-03; states no count or mark)
- https://dmv.sc.gov/driver-services/drivers-license/beginner-permits (read 2026-10-03; states no count or mark)
- https://www.scstatehouse.gov/coderegs/Chapter%2090.pdf (read 2026-10-03; pass rates for driving-school students only)