North Carolina OSOW permits

Permits valid for ten days. Must have a permit prior to entering the state.

North Carolina permitting system:

Contact phone number: 1-888-574-6683


Sunrise to sunset, Monday through Saturday, no Sunday travel. Overweight only, not exceeding 112,000 pound gross (or 94,500 for sealed ship container) and traveling only on Interstate routes may travel 24/7, but it must be requested with the permit order.


Loads over 10 feet wide are restricted within a 10 mile radius of the following cities: Charlotte, Raleigh, Durham and Chapel Hill from 7:00 a.m. – 9:00 a.m. and 4:00 p.m. – 6:00 p.m. Loads over 14’ height are subject to speed and escort restrictions in I-40 tunnels near Tennessee line. No travel on major holidays or holiday weekends. Double check with permit office for holiday restrictions.


Width: 8'6" Interstate and designated highways, 8' on other roads

Height: 13'6

Length: 53'0 trailer* on designated highways, 48' trailer on all other roads. No overall designated legal length on all highways for 48' trailer. For 53' trailer, no overall designated length on Interstates or federally designated highways, 60' overall on non-designated. In NC, only Interstates and a few sections of 4-lane US Highways are considered federally designated highways. On other routes, including most US Highways, the legal overall length is 60 feet. *(53' semi-trailer must not exceed 41' center of kingpin to center of rear tandem).

Overhang: Front – 3', Rear – 14' (but note length restriction for non-designated routes on 53' trailers).

Weight: 80,000 Gross Single – 20,000 Tandem – 38,000 Tridem – depends on spacings


Width: 15'

Length: 105', beams and girders maximum 120'.

Height: No set limits – determined by route. Loads over 14' may take extra processing time.

Weight: 5 axles – 112,000 6 axles – 120,000 7 axles – 132,000 Steer Axle – 12,000* Single – 25,000 Tandem – 50,000 Tridem – 60,000 *Steer Axle can exceed 12,000 only with super load application (approximately 2-3 day turn-around, $100 extra fee). Weight over 132,000 or widths over 15' are super loads. Letter from shipper must be included with a super load application (except for steer axle weight over 12,000 only applications).


Width: Over 12' – 1 escort; over 14' – 2 escorts on 2 lane or 2 way roads; over 15' wide may require police escorts

Height: Over 14'5" – 1 escort with high pole. Note for I-40 tunnels near TN line: Eastbound and over 13'11" – 1 escort with height pole; Westbound and over 14'2" – 1 escort with height pole. Length: Over 110' – 1 escort; over 150' – 2 escorts.

Overhang: Over 15' front or rear – 1 escort

Weight: Over 149,999 pounds – 1 escort.


Blades and buckets which cannot be angled to not exceed 14 feet in width must be removed. A blade or bucket, if it is part of the original equipment being hauled, may be detached and hauled with the equipment without being considered a divisible load. Beams, poles, pipes, structural material don't need permit up to 85 feet long, daylight only, on Interstates and designated roads.

Multiple pieces rule:

NC does not allow or permit for multiple pieces on an overlength vehicle/load (over 60’ overall length) on “non-designated” highways. If you are hauling two farm tractors end-to-end and your overall length is 70 feet, we can not get a NC permit except for Interstate and “designated” US routes (mainly 4-lane US highways). If your route is on other highways (including most US Highways), NC will not give us a permit unless we claim that it is for a single piece.


"Oversize Load" signs are required at front and rear for all loads exceeding 10 feet wide. Flags are required on each corner and at the widest point of the load for all loads over 8'6" wide, but the flags shall be so mounted as to not increase the overall width of the load." Rear overhang in excess of 4 feet requires a flag, or at night a red or amber light visible for at least 200 feet

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