South Carolina now issues many oversize single-trip permits automatically. SCDOT’s permit system, Safehaul, says a load within its self-issue limits gets its permit without waiting for the permit office, and that’s what Permigo sees: those permits come back the moment Permigo files them. A load past any of those limits still waits for a person at SCDOT, and when a truck is booked to roll on a set day, that wait decides whether it leaves on time.
The short version
A single-trip permit for a load up to 14 feet wide, 15 feet high and 100 feet long, with no overhang, and up to 130,000 lb gross and 20,000 lb on any axle, is issued as soon as it’s filed. SCDOT’s notice in Safehaul says so (Permigo read it on October 16, 2026), and in Permigo’s experience it’s true. Past any of those limits, a person at SCDOT reviews the permit, about a business day behind in Permigo’s experience, so one filed on Friday usually waits for Monday; SCDOT’s guidelines, revised in March 2026, give no time for it. A superload’s routing analysis can take 3 to 5 business days. Permigo’s own turnaround is quick: it files the permit as soon as the order comes in. Permigo read SCDOT’s guidelines on October 11, 2026.
Single-trip permits: at once, or about one business day
A single-trip permit covers one load on one route, and it’s valid for 7 days, under SCDOT’s Guidelines for Movement. An overweight load takes the same permit up to 130,000 lb gross; above that it’s a superload. Every request goes through SCDOT’s online system, Safehaul, and SCDOT publishes no time for a single-trip permit.
Within the self-issue limits, South Carolina approves a single-trip permit automatically: in Permigo’s experience it’s issued the moment Permigo files it.
A load past any of those limits, say 15 feet wide, 110 feet long or with any overhang, waits for a person in SCDOT’s permit office, and the office works about a business day behind, in Permigo’s experience. A permit filed on Monday is usually reviewed on Tuesday. One filed first thing Monday morning is sometimes approved the same day, but don’t count on it. For those loads, plan on a business day, and order at least that far ahead of a set move date.
How long each kind of South Carolina permit takes
The wait depends on the permit. SCDOT issues two kinds automatically and sends the rest to its permit office or its engineers. It publishes a time for only a few.
| Permit | How SCDOT handles it | Time |
|---|---|---|
| Annual (multiple-trip) permit within the default limits: 14 ft wide, 13 ft 6 in high, 100,000 lb on five or more axles (over 90,000 lb only on SCDOT’s oversize truck route map) | May be issued automatically | Any hour, any day |
| Single-trip permit within SCDOT’s self-issue limits: up to 14 feet wide, 15 feet high and 100 feet long, with no overhang, and up to 130,000 lb gross and 20,000 lb on any axle | Issued automatically (SCDOT calls it self-issue) | As soon as it’s filed, in Permigo’s experience |
| Any other single-trip permit | Reviewed by a person in the permit office, in Permigo’s experience | About one business day, in Permigo’s experience (SCDOT publishes no time) |
| Annual permit for one set route, up to 15 ft high or 130,000 lb | Reviewed by the permit office | No published time |
| Superload: over 130,000 lb gross, or any single axle over 20,000 lb | Routing analysis | Can take 3 to 5 business days |
| Over 16 ft wide | Checked with each county engineer on the route | Request at least 5 days before the move; the office needs two days once the request is in |
| Past another routine maximum, such as over 125 ft long | An exception SCDOT may refuse | Request at least 5 days before the move |
| 16 ft high or more | Needs a route survey SCDOT approves first | No published time |
A wide load up to 14 feet can self-issue; up to 16 feet it goes on an ordinary single-trip permit that SCDOT reviews. Over 16 feet wide is past SCDOT’s routine maximum, so its guidelines want the request at least 5 days before the move. SCDOT’s over-16-foot form, revised in August 2022, adds that the office needs two days once the request is in, to check with the county engineer in every county on the route for road work. The travel date has to be exact.
Heavier superloads bring more paperwork: a certificate of insurance over 180,000 lb, and the manufacturer’s weight and dimensions over 300,000 lb. South Carolina’s superload line is 130,000 lb, and the superload guide sets it beside every other state’s.
Office hours, Fridays, weekends and holidays
SCDOT’s oversize/overweight (OSOW) permit office is open 8:00 a.m. to 5:00 p.m. Eastern, Monday to Friday, and closed on state holidays. A self-issued permit doesn’t wait for the office. In Permigo’s experience, a single-trip permit for review filed on Friday usually waits for Monday. Permigo files seven days a week, so a permit ordered on Saturday or Sunday goes in that day and waits for the office to open. In winter weather the office closes when the Governor closes state offices in Richland and Lexington counties, SCDOT’s permit page says.
SCDOT’s 2026 closure notice lists 13 closed days this year, and New Year’s Day 2027. These are still ahead:
| Office closed | Next day the office is open |
|---|---|
| Wednesday, November 11 (Veterans Day) | Thursday, November 12 |
| Thursday, November 26, and Friday, November 27 (Thanksgiving) | Monday, November 30 |
| Thursday, December 24, Friday, December 25, and Monday, December 28 (Christmas) | Tuesday, December 29 |
| Friday, January 1, 2027 (New Year’s Day) | Monday, January 4, 2027 |
Travel bans are a separate list. No oversize load moves on New Year’s Day, Memorial Day, July 4, Labor Day, Thanksgiving or Christmas, under SCDOT’s guidelines. Its permit director can stretch a ban from noon the day before to noon the day after, depending on the route and the load. The South Carolina page has every movement window.
Why you may read “same day” elsewhere
Past the self-issue limits, South Carolina doesn’t reliably issue a single-trip permit the same day. Some permit references still say it does if the application is in by 2:00 p.m. That line is printed in a 2022 edition of the Specialized Carriers & Rigging Association’s permit manual, with superloads and loads over 16 feet wide or high left out. Neither SCDOT’s August 2021 guidelines nor its current ones from March 2026 say it, and it isn’t what Permigo sees for a permit SCDOT reviews: about one business day.
How Permigo times a South Carolina permit
Permigo’s side is quick. It files your South Carolina permit as soon as the order comes in, 7am–7pm CT, seven days a week. Within the self-issue limits, that’s the whole wait. Past them, the time you wait is SCDOT’s review: in Permigo’s experience, an order in by the end of the business day is usually reviewed the next business day. The moment it’s issued, Permigo lets you know and adds it to the driver’s package: the one link with the route and every permit for the trip. On a route through several states, Permigo tells you before you pay which state will take longest.
$20 flat per state permit, with South Carolina’s own fee at cost; the cost guide lists it.
Common questions
How long does a South Carolina oversize permit take?
It depends on the load. A single-trip permit up to 14 feet wide, 15 feet high and 100 feet long, with no overhang, and up to 130,000 lb gross and 20,000 lb on any axle is issued automatically: SCDOT’s permit system says so, and in Permigo’s experience it comes back as soon as Permigo files it. A bigger load waits for a person at SCDOT, about a business day behind in Permigo’s experience, so one filed on Friday is usually reviewed on Monday; SCDOT publishes no time for it. A superload’s routing analysis can take 3 to 5 business days, SCDOT says. Once issued, a single-trip permit is good for 7 days.
Can a South Carolina oversize permit be issued instantly?
Yes, if the load is within SCDOT’s self-issue limits: up to 14 feet wide, 15 feet high and 100 feet long, with no overhang, and up to 130,000 lb gross and 20,000 lb on any axle. SCDOT’s permit system announced it, and since then, in Permigo’s experience, those single-trip permits are issued the moment Permigo files them. Past any of those limits, a person at SCDOT reviews the permit, and most are reviewed the next business day. The often-repeated line that applications “received by 2:00pm will be issued the same day” is from the Specialized Carriers & Rigging Association’s 2022 manual, not SCDOT.
If I order a South Carolina permit on Friday, when is it issued?
If the load is within SCDOT’s self-issue limits, on Friday: Permigo files it as soon as the order comes in, and in Permigo’s experience it is issued at once. A bigger load waits for the permit office, which works Monday to Friday, 8:00 a.m. to 5:00 p.m. Eastern, and in Permigo’s experience reviews Friday’s single-trip permits on Monday. Permigo files on weekends too, so a weekend order goes in that day. When Monday is an office holiday, a permit for review waits for the next day the office is open.
Are South Carolina annual oversize permits issued automatically?
Yes, within SCDOT’s default limits: a non-divisible load up to 14 feet wide, 13 feet 6 inches high and 100,000 lb on five or more axles, with anything over 90,000 lb kept to SCDOT’s oversize truck route map. For those loads, SCDOT’s guidelines say the annual (multiple-trip) permit may be issued automatically, any hour of any day. It is good for one year and tied to one truck. A multiple-trip permit for a set route, up to 15 feet high or 130,000 lb, goes to the permit office for review.
How long does a South Carolina superload permit take?
Allow 3 to 5 business days: SCDOT’s guidelines, revised in March 2026, say the routing analysis can take that long. A load over 130,000 lb gross, or with any single axle over 20,000 lb, needs that analysis before SCDOT issues the permit. Over 180,000 lb the request also needs a certificate of insurance. Over 300,000 lb it needs the manufacturer’s weight and dimensions, and SCDOT may ask for an engineer’s structural analysis. Permigo files superloads and tells you the lead time before you pay.
How long does a South Carolina permit take for a load over 16 feet wide?
Plan on at least 5 days. A South Carolina load over 16 feet wide is past SCDOT’s routine maximum, so its guidelines want the request at least 5 days before the move. SCDOT’s over-16-foot form adds that the office needs two days once the request is in, to check with each county engineer on the route. The travel date has to be exact. A load 16 feet high or more needs a route survey SCDOT approves before the permit is issued.
When is SCDOT’s oversize permit office open?
SCDOT’s oversize/overweight (OSOW) permit office is open 8:00 a.m. to 5:00 p.m. Eastern, Monday to Friday, and closed on state holidays, under its guidelines and its 2026 closure notice. As of October 11, 2026, the closures still ahead are November 11, November 26 and 27, December 24, 25 and 28, and January 1, 2027. In winter weather the office closes when the Governor closes state offices in Richland and Lexington counties. Permigo files seven days a week, 7am–7pm CT, so an order placed while SCDOT is closed is waiting when it opens.
What does Permigo charge for a South Carolina permit, and how do I order?
Permigo charges $20 flat per state permit, and South Carolina’s own permit fee is billed at cost on the same invoice. Order online, or call or text +1 (786) 494-6912, 7am–7pm CT, seven days a week. Permigo’s side is quick: it files the South Carolina permit as soon as the order comes in during those hours, lets you know the moment SCDOT issues it, and adds it to the driver’s package for the trip.