FMCSA Hours-of-Service Rules in Oregon Truck Cases

Why a truck driver's hours matter

Long hours behind the wheel are one of the biggest safety risks in commercial trucking. A tired driver reacts more slowly and makes more mistakes. To reduce that risk, the federal government limits how long a commercial driver can work and drive. These limits are called the hours-of-service (HOS) rules. In an Oregon truck-accident case, records showing that a driver broke these rules can become important evidence.

The federal hours-of-service limits

The hours-of-service rules for property-carrying trucks come from federal regulations in 49 CFR Part 395. "Property-carrying" means trucks that haul freight or goods, as opposed to buses that carry passengers. A few core limits apply.

Federal rules let a property-carrying driver drive up to 11 hours, but only within a 14-hour on-duty window that begins after 10 straight hours off duty.¹

After 8 cumulative hours of driving time, the driver may not drive again until taking at least a consecutive 30-minute interruption of driving status. That interruption can be satisfied by off-duty time, sleeper-berth time, or on-duty time spent not driving — so a driver who spends 30 minutes loading rather than resting has still satisfied the rule.² Drivers who qualify for the short-haul exceptions are not subject to this requirement at all.²

Over a longer stretch, a driver may not drive after having been on duty 60 hours in any 7 consecutive days, or 70 hours in any 8 consecutive days for carriers that operate every day of the week.³ The distinction matters: the rule bars further driving, not other on-duty work. A driver who has hit the limit may still perform non-driving duties. Either period can restart with 34 or more consecutive hours off duty.³

These caps work together. Even a driver who has not reached the 11-hour driving limit still cannot legally drive once the 14-hour window has closed. The rules are meant to force real rest, not just short pauses.

How the hours are recorded: ELD logs

Most commercial carriers must track these hours automatically. Federal rules require a motor carrier to install an electronic logging device (ELD) in its trucks and to have each driver use it to record duty status.⁴ An ELD connects to the truck's engine and logs when the truck is moving, idling, or shut off. Because the data is captured automatically, it is harder to alter than the old paper logbooks. ELD records, together with GPS data, dispatch records, and fuel receipts, can show how many hours a driver had already worked before a crash.

Do these rules apply to trucks in Oregon?

For interstate carriers, yes. The hours-of-service rules apply to all motor carriers and drivers who operate commercial motor vehicles, subject to limited exceptions.⁵ A trucking company based in another state that hauls loads into or through Oregon is operating in interstate commerce and must follow Part 395 as written.

Purely intrastate Oregon trucking is a different picture, and it is easy to get wrong. Oregon has adopted Part 395 by administrative rule, but with its own numbers substituted for several of the federal ones when the hauling is entirely within the state. Under OAR 740-100-0010, a motor carrier conducting intrastate transportation of property may not require or permit a driver to exceed 12 hours driving after 10 consecutive hours off duty, may not let the driver drive beyond the 16th hour after coming on duty, and may not let the driver drive after 70 hours on duty in 7 consecutive days or 80 hours in 8 consecutive days — rather than the federal 11, 14, 60, and 70.⁶ Those substituted limits do not apply to loads of hazardous materials that require placarding, which stay on the federal numbers.⁶

So the same conduct can be a violation or not depending on whether the trip was interstate or intrastate. A 12-hour driving day is over the federal limit but within Oregon's intrastate limit. Identifying which set of rules governed the driver at the time of the crash is one of the first things to pin down, and it turns on the nature of the haul rather than on where the truck happened to be when the collision occurred.

How an HOS violation can support a negligence argument

Oregon injury cases are built on negligence — the idea that someone failed to use reasonable care and caused harm as a result. To hold a trucking company or driver responsible, an injured person generally must show what safe conduct looked like and how the other side fell short of it.

The hours-of-service rules matter here because they set a clear, written safety standard. If ELD logs show that a driver had been driving 13 hours, or had skipped the required 30-minute break, that is objective evidence the driver was on the road when federal rules said they should have stopped. A lawyer may use that evidence to argue that the driver — and often the company that set or allowed the schedule — did not act as a careful trucker should.

A violation, on its own, does not decide a case. The other side may challenge the logs or argue that the violation did not cause the crash. Fatigue and rule-breaking still have to be connected to how the collision actually happened. But because HOS records are detailed and time-stamped, they are among the most useful pieces of evidence a lawyer reviews after a serious truck crash.

What to take from this

The hours-of-service rules exist to keep overtired drivers off the road, and the ELD system creates a record of whether a driver followed them. Whether a specific violation matters in a specific crash depends on which set of limits applied to that driver, the facts, the logs, and how the collision happened — questions an Oregon attorney would evaluate case by case.

This article is educational

This article describes Oregon law in general terms. It is not legal advice and does not create an attorney-client relationship.

Time limits matter. Most Oregon personal-injury and auto-accident claims must be filed within two years of the injury or accident. Medical malpractice claims must be filed within two years of when you knew or reasonably should have known of the negligence, with an outer limit of five years from the act itself (with a fraud exception). Wrongful death claims must be filed within three years of the date of death. Claims against public bodies (cities, counties, state agencies, public hospitals) require a notice of claim within 180 days. Missing these deadlines typically ends a case.

If you think you may have a claim, call Huegli Law at 971-317-6436 for a free case review. Todd Huegli is licensed in Oregon and consults on cases in Oregon only.

Footnotes

1. 49 CFR § 395.3 — Maximum driving time for property-carrying vehicles. https://www.law.cornell.edu/cfr/text/49/395.3 (third-party mirror) ↩

2. 49 CFR § 395.3 — Maximum driving time for property-carrying vehicles. https://www.law.cornell.edu/cfr/text/49/395.3 (third-party mirror) ↩ ↩²

3. 49 CFR § 395.3 — Maximum driving time for property-carrying vehicles. https://www.law.cornell.edu/cfr/text/49/395.3 (third-party mirror) ↩ ↩²

4. 49 CFR § 395.8 — Driver's record of duty status. https://www.law.cornell.edu/cfr/text/49/395.8 (third-party mirror) ↩

5. 49 CFR § 395.1 — Scope of rules in this part. https://www.law.cornell.edu/cfr/text/49/395.1 (third-party mirror) ↩

6. OAR 740-100-0010 — Adoption of Federal Safety Regulations. https://oregon.public.law/rules/oar_740-100-0010 ↩ ↩²