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North Dakotadriving inIdaho
Truck Friendly — high speed limits, no chain laws, good parking

Idaho

Highway Speed
65 mph
Urban Speed
65 mph
Truck Parking
Good
Inspection Level
Moderate

Speed Limits

Truck speed limits in Idaho: Highway 65 mph, Rural 80 mph, Urban 65 mph. Effective July 1, 2026 (HB 664, signed Mar 24, 2026): split speed limit eliminated; trucks may match car speeds — 80 mph on rural interstates, 65 mph on urban interstates. Left lane: No specific truck left-lane restriction.

Winter & Chain Laws

Chains required during winter conditions on designated mountain passes; ITD can require chains on any route during severe weather Construction: Construction season May-October; mountain passes may have limited hours for oversize loads.

Restricted Routes

Mountain passes require chain-up capability; standard oversize/overweight permits; some seasonal road closures

Hours of Service & ELD

Standard federal HOS enforcement; Idaho State Police CMV units ELD: Full federal ELD mandate compliance required.

Inspections & Enforcement

Moderate; ISP conducts roadside inspections at ports of entry Drug testing: Federal DOT drug testing requirements apply.

Parking Availability

Good; 147 spots per 100K truck miles; adequate truck stops along I-84 and I-86

Official Source

For the most current trucking regulations in Idaho, visit the official enforcement page at https://itd.idaho.gov/motor-carrier-services/.

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Law last updated: 2026-03Row last reviewed: May 8, 2026

Trucking regulations change frequently. Always verify current rules with the official state DOT or highway patrol before operating. This guide is for informational purposes only. Data reflects regulations as of early 2026.