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Washington
Speed Limits
Truck speed limits in Washington: Highway 60 mph, Rural 60 mph, Urban 60 mph. Trucks limited to 60 mph on all interstates (passenger vehicles 70-75). Left lane: Trucks restricted from left lane on designated highways where posted.
Winter & Chain Laws
Strict chain requirements on mountain passes (Snoqualmie, Stevens, White); WSP enforces chain controls; chains required for all CMVs when posted Construction: Construction season April-October; mountain pass construction common.
Restricted Routes
Mountain passes may close during severe weather; some Seattle metro truck restrictions; standard oversize/overweight permits with strict requirements
Hours of Service & ELD
Aggressive enforcement; WSP commercial vehicle division very active ELD: Full federal ELD mandate compliance required.
Inspections & Enforcement
High; WSP conducts extensive roadside inspections and facility audits Drug testing: Federal DOT drug testing requirements apply.
Parking Availability
Limited; 62 spots per 100K truck miles; Seattle metro especially constrained
Official Source
For the most current trucking regulations in Washington, visit the official enforcement page at https://wsp.wa.gov/driver/commercial-vehicles/.
Related guides
More from Pennsylvania · Road Safety
- Pennsylvania → Montana
- Pennsylvania → North Carolina
- Pennsylvania → North Dakota
- Pennsylvania → Nebraska
- Pennsylvania → New Hampshire
Moving to Washington from elsewhere · Road Safety
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.