North Carolina Oversize Load Regulations & Permit Guide
Important: We are not a permit service and we do not arrange permits for carriers. All information provided below is for informational purposes only. Always read permits and provisions carefully as we cannot guarantee the accuracy of information provided below.
For companies specializing in heavy haul oversized transport or machinery hauling services, understanding North Carolina’s oversize load safety regulations is essential for compliant operations. Here’s your comprehensive guide:
Permit Essentials
- Oversize Permits: Valid for 10 travel days.
- Must Obtain Permits: Before entering the state.
- Single-trip Permits: Required for most oversized movements.
- Special Provisions: Available for heavy equipment oversize shipping.
Operating Hours & Travel Flexibility
- Standard Movement: Sunrise to sunset (Mon–Sat, no Sunday travel).
- 24/7 Movement Allowed: For overweight-only loads (≤112,000 lbs gross), sealed ship containers (≤94,500 lbs), and interstate routes only (must request with permit).
Restricted Travel Areas
- Urban Curfews: 7–9 AM & 4–6 PM within 10 miles of:
- Charlotte
- Raleigh
- Durham
- Chapel Hill
- I-40 Tunnel Restrictions: For loads >14′ height.
- Holiday Restrictions: No travel on major holidays/weekends.
Legal Dimensions for Heavy Haul Trucks
Length:
- 53′: On designated highways (41′ kingpin to rear tandem).
- 48′: On other roads (60′ max overall).
Width:
- 8’6″: On Interstates/designated routes.
- 8′: Elsewhere.
Height:
- 13’6″: Maximum height.
Weight Limits:
- Gross: 80,000 lbs.
- Single axle: 20,000 lbs.
- Tandem: 38,000 lbs.
- Tridem: Varies by spacing.
Routine Permit Limits
- Length:
- 105′ standard.
- 120′ for beams/girders.
- Width: 15′ max.
- Height: Route-dependent (>14′ requires extra processing).
- Weight:
- 5 axles: 112,000 lbs.
- 6 axles: 120,000 lbs.
- 7 axles: 132,000 lbs.
- Superload Classification: >132,000 lbs or >15′ width.
Escort Requirements
- Length:
- 110′: 1 escort.
- 150′: 2 escorts.
- Width:
- 12′: 1 escort.
- 14′: 2 escorts (on two-lane roads).
- 15′: Possible police escort.
- Height:
- 14’5″: 1 high-pole escort.
- I-40 tunnels:
- Eastbound >13’11”: 1 escort.
- Westbound >14’2″: 1 escort.
- Weight: >149,999 lbs: 1 escort.
Special Equipment Considerations
- Blades/buckets >14′ wide: Must be removed.
- Multiple Pieces: Strict limitations on non-designated highways.
- Exemptions: For beams/poles/pipes ≤85′ on Interstates.
Safety & Compliance
- Signage: “Oversize Load” signs required (>10′ wide).
- Markings:
- Flags on all corners (>8’6″ wide).
- Flags/lights for >4′ rear overhang.
- Route Planning: Must account for urban curfews, tunnel restrictions, and holiday closures.