Hours-of-Service Rules and Driver Fatigue
The daily driving limits
A property-carrying driver must start with 10 consecutive hours off duty, may drive up to 11 hours, cannot drive after the 14th hour since coming on duty, and needs a 30-minute break once 8 hours of driving have passed (49 CFR 395.3(a)). Weekly caps of 60 hours in 7 days or 70 in 8 apply on top of that (49 CFR 395.3(b)).
The electronic logging device
Most carriers must install an ELD and require drivers to record duty status with it (49 CFR 395.8(a)). Compared against fuel receipts, gate records and dispatch messages, the log can show a driver who was already past the limit when the crash happened.
Driving while too tired
Apart from the hour limits, no driver may operate, and no carrier may require or permit a driver to operate, while fatigue or illness has made driving unsafe (49 CFR 392.3). A carrier that schedules runs no one could complete legally shares that responsibility.
Local runs and the short-haul exemption
Drivers who stay within a 150 air-mile radius and are released within 14 hours can be exempt from the logbook rule, but the carrier must keep accurate time records for six months (49 CFR 395.1(e)(1)). Regional haulers and base contractors often rely on this exemption, so their time records become the evidence. Our Utah truck accident guide explains who else can share fault.
A truck that drove away
If a truck forced you off I-15 or US-89 and never stopped, your uninsured motorist coverage may pay. If it never touched you, Utah Code § 31A-22-305(6) requires clear and convincing proof beyond your own testimony that it existed, so write down any company name or trailer number you saw.