Between August 2023 and October 2026, Oregon recorded 60,206 roadside inspections and 89,465 violations, about 1.49 violations per inspection. The count itself didn't catch my attention. What did was how many of those violations ended with a truck parked. Oregon logged 25,650 out-of-service violations, an OOS rate of 28.7% of violations, against 17.6% nationally across 8,042,912 inspections. Per 100 inspections, that works out to 42.6 out-of-service violations in Oregon.
If you want the same cut for your own lanes, the Oregon state insights page has the full breakdown.
Drivers and vehicles both run high
The split matters more than the headline. Oregon's driver-side violations totaled 19,267, with 10,404 out of service, or 54.0%. Nationally that share is 24.1% (565,351 of 2,344,141). Vehicle-side violations totaled 34,660, with 15,246 out of service, or 44.0%. The national vehicle share is 24.0% (1,703,633 of 7,100,282).
So the gap isn't confined to one side of the inspection. Both groups roughly double the national share. Hazmat is smaller: 409 violations, 120 out of service, 29.3%, against 26.6% nationally. With only 409 violations, I wouldn't read much into that difference.
These three groups don't add up to the total. Driver, vehicle, and hazmat violations account for 54,336 of the 89,465 total. The remaining roughly 35,100 fall into categories I'm not breaking out here, so every percentage in this post is a share of those three groups only.
What an out-of-service mark does
An out-of-service violation means the inspector has ordered the driver or the vehicle off the road until the condition is corrected. That's the number that costs money: a parked truck, a reload, a missed delivery window, and a repair on the roadside or at a shop. A violation without an OOS mark is a citation on the record. An OOS mark is downtime.
The federal rules behind these inspections are in Title 49 of the Code of Federal Regulations. Read the actual text in eCFR Title 49 rather than trusting my summary of it. FMCSA also publishes the underlying safety and inspection data on its data and statistics page, which is the right place to check the national baseline yourself.
For a fleet, the practical read is this. When almost half of vehicle violations written in Oregon carry an OOS mark, a defect found at the roadside isn't a paperwork problem. It's a stopped truck. The fix happens upstream: pre-trip and post-trip inspections that catch the same conditions inspectors look for, and repair records that show the defect was addressed before the truck rolled again.
What the numbers don't tell you
These are aggregate counts. They don't explain why Oregon runs higher than the national figure. Possible contributors include the mix of inspections performed, which vehicles and carriers get selected, how officers write up borderline conditions, and what freight moves through the state. This data doesn't separate those factors, so I won't claim a cause.
Nor do they describe your own risk. A state average tells you where to look. It doesn't predict how your trucks will fare on your lanes.
Key takeaways
- Oregon's OOS rate is 28.7% of violations, against 17.6% nationally, or 42.6 OOS violations per 100 inspections.
- Driver-side OOS share is 54.0% in Oregon versus 24.1% nationally. Vehicle-side is 44.0% versus 24.0%.
- Hazmat is 29.3% versus 26.6%, on a small base of 409 violations.
- An OOS mark is the costly event. Treat any roadside defect as a possible parked truck.
- The data shows where the problems land, not why. Use it to decide what to check first, not to assume a cause.
Where to go next
If you run in more than one state, the state map is the place to start, and the insights index has the rest of the breakdowns. Begin with the categories where your own fleet's numbers are weakest, because that's where an out-of-service mark is most likely to land on you.