Scenario 1: 80,000-lb tractor-trailer, IRP/IFTA-registered
✅ You need to get Weight-Mile Tax
⛔ No trip/fuel permit needed (but you must file mileage reports)
Scenario 2: 28,000-lb truck, no IFTA or IRP
✅ You need a Temporary Trip Permit + Fuel Permit
Cost: $95 (trip) + $95(fuel) = $190 total for 10 days
Scenario 3: 88,000-lb truck
✅ You need an Overweight Permit
→ Oregon’s legal max GVW is 80,000 lbs without a permit.