Building and permits · Permits by state
Billboard Permits in South Carolina: Rules, Spacing and Fees
By Gabie Research · Updated Oct 12, 2026 · 7 min read
Short answer
In South Carolina, SCDOT's Outdoor Advertising Office issues billboard permits through an online portal. A new permit costs $100 once. Renewal is $20 a year for signs up to 350 square feet and $30 above that. Signs must sit 500 feet apart on Interstates. A face can be up to 672 square feet, and digital messages hold 6 seconds.
- SCDOT's Outdoor Advertising Office in Columbia issues the permit. You apply in its Outdoor Advertising Portal.
- The application fee is $100, once and nonrefundable. The yearly permit fee is $20, or $30 over 350 square feet.
- Spacing is 500 feet on Interstates, 300 feet on rural primary roads and 100 feet inside cities.
- A face can be up to 672 square feet. No face can be over 60 feet long or 48 feet high. Digital messages hold 6 seconds.
- SCDOT allows tree cutting only for signs permitted two years or more, using Form 603 and an encroachment permit.
SCDOT issues billboard permits in South Carolina. You apply online. A new permit costs $100 once, and renewal is $20 or $30 a year, by size. Signs on Interstates must sit 500 feet apart. A face can be up to 672 square feet.
Who issues billboard permits in South Carolina?
The South Carolina Department of Transportation (SCDOT) runs the Outdoor Advertising program. The Outdoor Advertising Office is at 955 Park Street, Room 125, in Columbia. Its toll-free number is 855-467-2368. Four regional coordinators cover the counties: Midlands, Pee Dee, Piedmont and Low Country.
New owners register for an owner ID in the Outdoor Advertising Portal. Then you apply there. SCDOT moved existing permit data into the new system. Login help comes from ODAHelp@scdot.org.
The law is the Highway Advertising Control Act, Title 57, Chapter 25. The rules are in Regulations 63-341 to 63-355.
Which roads need a state permit?
SCDOT controls Interstates and federal-aid primary highways. That follows 23 U.S.C. 131. The control area is 660 feet from the edge of the right-of-way, for signs a driver can see. SCDOT says any off-premise sign you can see from the main road needs a permit.
State law adds a special rule for two scenic routes. They are the Andrew Pickens Scenic Highway, part of SC 11, and US 123 between Easley and Clemson. Signs there may not sit within 300 feet of the right-of-way. Exceptions include commercial and industrial areas. Ask SCDOT before you plan a site on either route.
Where can a billboard go?
A sign must sit in a zoned or unzoned commercial or industrial area.
- Zoned land needs a complete zoning plan. The plan must cover at least 20% of the land in the town or county. Spot zoning and zoning made for signs do not count.
- Unzoned land needs a working business in a permanent building. The area runs 600 feet from the far edge of the land the business uses. It also crosses the road on non-freeway primary roads that are not scenic.
- The business needs a worker on site 36 hours a week. That must be spread over four days, for 48 weeks a year. It needs power, a phone, water and a restroom.
Some uses never count. They include golf courses, campgrounds, ball fields, apartments, schools, churches, cemeteries, junkyards and quarries. A business built only to qualify a site is a "sham" and does not count.
South Carolina billboard rules at a glance
| Rule | South Carolina limit | Source |
|---|---|---|
| Control area | 660 ft from the right-of-way, visible from the road | Reg. 63-342(D) |
| Unzoned area | 600 ft from the activity | S.C. Code 57-25-120; Reg. 63-342(FF) |
| Maximum face | 672 sq ft | S.C. Code 57-25-140(C); Reg. 63-345 |
| Length and height | No face over 60 ft long or 48 ft high; area capped at 672 sq ft | S.C. Code 57-25-140(C); Reg. 63-345 |
| Cutouts and extensions | Up to 150 sq ft more | Reg. 63-345 |
| Stacked faces | Not allowed | Reg. 63-353 |
| Supports | Steel for 350 sq ft and up; steel monopole at 672 sq ft | Reg. 63-353 |
| Spacing, Interstates and freeways | 500 ft, same side | S.C. Code 57-25-140(E) |
| Interchanges and rest areas (rural) | No sign within 500 ft | S.C. Code 57-25-140(E) |
| Spacing, other primary roads, rural | 300 ft | S.C. Code 57-25-140(E) |
| Spacing, other primary roads, inside cities | 100 ft | S.C. Code 57-25-140(E) |
| Parks, forests, playgrounds, scenic areas | 300 ft outside cities, 100 ft inside | S.C. Code 57-25-140(D) |
| Setback | Not on the right-of-way; no set distance published | Reg. 63-344(F) |
| Lighting | Shielded; no flashing, pulsing or color-changing lights | Reg. 63-347 |
| Digital hold time | At least 6 seconds | Reg. 63-354(E) |
| Digital change time | 2 seconds or less | Reg. 63-354(F) |
| Digital spacing | 500 ft, same side | Reg. 63-354(C) |
| Digital brightness | Same level all through the display; no number published | Reg. 63-354(I) |
| Build deadline | 180 days after the permit is issued | Reg. 63-349(O) |
| Decision time | About 30 days, or deemed rejected; review can run up to a year | Reg. 63-349(L) |
A standard 14 x 48 foot bulletin is 672 square feet. It fits the cap.
What are the digital billboard rules?
South Carolina calls them off-premise changeable message signs. Regulation 63-354 sets these rules:
- Each message stays fixed for at least 6 seconds.
- The change takes 2 seconds or less.
- Signs sit 500 feet apart on the same side of the road.
- A digital sign may have a single face or a V shape. No side-by-side or stacked faces.
- No flashing, intermittent or moving lights, and no scrolling messages.
- The light level stays the same through the display.
Only a sign that meets today's rules can go digital, and you must ask SCDOT first. The rule has stood since March 2007. SCDOT's program page does not list digital rules. South Carolina's 6 seconds is inside the 4-to-10-second range FHWA described in 2007. FHWA recommended 8.
What does a permit cost?
Fees set by S.C. Code 57-25-150 (checked October 12, 2026):
| Fee | Amount | Source |
|---|---|---|
| Application | $100, one time, nonrefundable | S.C. Code 57-25-150(B); SCDOT |
| Annual permit, up to 350 sq ft | $20 | S.C. Code 57-25-150(B); SCDOT |
| Annual permit, over 350 sq ft | $30 | S.C. Code 57-25-150(B); SCDOT |
| Revision | $20 up to 350 sq ft; $30 above | SCDOT |
| Replacement tag | $20 up to 350 sq ft; $30 above | SCDOT |
| Window clearing (encroachment permit) | The agency does not post this; ask |
SCDOT says the law sets these fees. Section 57-25-150 was last changed in 2017. The law waives the application fee for some South Carolina farmers. Their signs must be 32 square feet or less and sell their own produce.
Permits run by calendar year. A renewal not paid within 90 days of the first bill cancels the permit. Changing the ad costs nothing. Breaking the law is a misdemeanor, with a fine up to $200. A civil penalty of $100 a day can also apply.
Do you need a license or bond?
No. Chapter 25 asks for no license or bond for sign owners. SCDOT's page lists none. You register for an owner ID instead. Each sign must show your name where drivers can read it, and it must carry the SCDOT tag.
Can you cut trees in front of a sign?
Only with SCDOT's agreement. State law bars cutting in the right-of-way without it. SCDOT grants this only for signs permitted two years or more, at its choice.
- File Form 603 by email to ODAVeg@scdot.org. Add a site plan and photos from 600 feet.
- Get an encroachment permit before any work.
- SCDOT can approve up to a 600-foot window, measured from the center support.
- You may cut trees, brush and limbs. Stumps are ground 2 inches below grade.
- SCDOT may protect planted, historic or wetland trees.
Cutting without approval makes the sign illegal. You cannot get a sign permit for one year. A second offense bars you for five years, and a third for good. No sign may go within 600 feet of land cleared this way.
What about nonconforming signs?
A nonconforming sign was legal when built but fails today's rules. You may not do work that lengthens its life. You may fix bolts, paint it and change the ad. Fixing damage beyond normal wear needs SCDOT's written approval first.
Adding lights, moving it or raising it makes it illegal. Wind or another natural force may damage a sign. If the damage tops 50% of its replacement cost, it cannot be rebuilt. It also cannot convert to digital. Vandalism is an exception. A sign hit by vandals can be restored in kind after a police report.
State law says SCDOT must pay just compensation to remove a lawful nonconforming sign.
Do you need a local permit too?
Often. Where a city or county has sign rules, SCDOT wants proof first. Send the local permit. Or send a letter from a local official saying the sign complies and a permit will follow. A local zoning board can also set its own size, light and spacing rules. They must be at least as strict, and SCDOT must approve them.
How do you apply for a billboard permit in South Carolina?
- Contact your regional coordinator.
- Register for an owner ID in the portal, if you are new.
- Confirm the zoning, or find a qualifying business.
- Measure spacing to nearby signs.
- Get a written lease from the landowner.
- Get local approval.
- Mark the site with a stake that shows 2 feet above ground.
- Apply in the portal and pay $100.
- Wait for the permit. Build within 180 days and attach the tag.
- Renew each year.
Read how to start a billboard business for the steps before a permit.
Other state billboard permit guides
- Billboard permits: the national overview
- Tennessee
- Texas
- Florida
- Georgia
- California
- North Carolina
- Ohio
- Pennsylvania
- Illinois
- New York
- Alabama
- Kentucky
- Virginia
- Missouri
This is a summary, not legal advice. Check with the agency before you build or sign.
Questions people ask
Who issues billboard permits in South Carolina?
The South Carolina Department of Transportation does, through its Outdoor Advertising Office in Columbia. Four regional coordinators cover the counties.
How much does a South Carolina billboard permit cost?
$100 to apply, one time and nonrefundable. Then $20 a year for a sign up to 350 square feet, or $30 a year above that.
How far apart must billboards be in South Carolina?
500 feet on the same side of an Interstate or freeway. On other primary roads it is 300 feet in rural areas and 100 feet inside cities.
How big can a billboard be in South Carolina?
A face can be up to 672 square feet. No face can be over 60 feet long or 48 feet high. Cutouts can add up to 150 square feet. Stacked faces are not allowed.
What are South Carolina's digital billboard rules?
Each message holds at least 6 seconds and changes in 2 seconds or less. Digital signs sit 500 feet apart. Only signs that meet today's rules can convert, and only as a single face or a V.
Can I cut trees in front of my billboard in South Carolina?
Only with SCDOT's agreement, and only for a sign that has held a permit two years or more. You file Form 603 and get an encroachment permit first. SCDOT will approve up to a 600-foot window.
Sources
- 01Outdoor Advertising Permits · South Carolina Department of Transportation · accessed Oct 12, 2026
- 02S.C. Code of Laws, Title 57, Chapter 25, Highway Advertising Control Act · South Carolina Legislature · accessed Oct 12, 2026
- 03S.C. Code of Regulations, Chapter 63, Department of Transportation (63-341 to 63-355) · South Carolina Legislature · accessed Oct 12, 2026
- 04Outdoor Advertising Regulations 63-341 to 63-354 (State Register Doc. 3059, eff. Mar. 23, 2007) · South Carolina Department of Transportation · accessed Oct 12, 2026
- 05Form 603, Application for Window Clearing at Outdoor Advertising Signs (rev. April 2025) · South Carolina Department of Transportation · accessed Oct 12, 2026
- 0623 U.S.C. 131, Control of outdoor advertising · Legal Information Institute, Cornell Law School · accessed Oct 12, 2026
- 07Guidance on Off-Premise Changeable Message Signs (Sept. 25, 2007) · FHWA · accessed Oct 12, 2026
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Published Oct 12, 2026 · Updated Oct 12, 2026 · How we check facts