Speed Limit Laws: New Hampshire

Rural Interstates

Cars (MPH) Trucks (MPH)
65 (70 on specified segments) 65 (70 on specified segments)

Urban Interstates

Cars (MPH) Trucks (MPH)
65 (70 on specified segments) 65 (70 on specified segments)

Other Limited Access Roads

Cars (MPH) Trucks (MPH)
55 (70 on specified segments) 55 (70 on specified segments)