North Dakota OSOW Regulations (NDDOT)
Legal Dimensions (No Permit Required)
- Width: 8'6"
- Height: 14'
- Length: 53' (semitrailers)
- Gross vehicle weight: 80,000 lbs
Legal Weights (No Permit Required)
- Single axle: 20,000 lbs
- Tandem axle: 34,000 lbs
Escort Vehicle Requirements
When Escorts Are Required
Over Width
- Over 14'6" on two-lane highways: 1 escort
- Over 16' on two-lane highways: 2 escorts
- Over 16' on four-lane highways: 1 escort
Over Height
- Over 18' high: Written authority from utility companies required
Over Length
- Over 120' long: 1 escort required
Additional Escort Requirements
- Over 18' wide: 2 escorts AND 1 police escort
Operating Times
Standard Hours
- Sunrise to sunset
- Including Saturday and Sunday
Weekend Restrictions
Loads over 16' wide and 110' long:
- No travel Saturday afternoon
- No travel all day Sunday
Contact Information
- Website: https://www.dot.nd.gov/
- State: North Dakota
- Agency: North Dakota Department of Transportation (NDDOT)
Regulatory References
- North Dakota Department of Transportation
- https://www.dot.nd.gov/
- https://jjkellercompliancenetwork.com/regsense/oversize-and-overweight-movements-north-dakota
Last Updated: 2025-11-11
OSOW publishes North Dakota regulation references as public guidance; field teams should still validate route-specific constraints before dispatch.
If your move requires managed execution, request dispatch support to align permits, escort assignment, and operational timing.
OSOW publishes North Dakota regulation references as public guidance; field teams should still validate route-specific constraints before dispatch.