Understand Hours of Service Regulations
- 11-hour driving limit (property) or 10-hour driving limit (passenger)
- 14-hour driving window (property) or 15-hour on-duty limit (passenger)
- 30-minute break (property)
- Sleeper berth provision
InstructionsTo view potential violations in an example log:
- Download the explanations to better understand each scenario
- Select one of the pre-populated examples from the drop-down field in ETHOS below
Download more detailed instructions for additional information.
- Select your event date, time, and duty status and click “add event”
- Repeat until you’ve entered all the data for a particular log
- Potential violations will appear on the log and below the log in a table where you can switch between carrier types
*This Educational Tool for Hours of Service (ETHOS) is for educational purposes only and is designed to assist motor carriers in understanding the hours of service rules in 49 CFR part 395. The ETHOS identifies only potential violations, and should not be relied on by motor carriers to monitor or evaluate hours of service compliance. FMCSA does not retain any data entered in this application, and will not use the data entered for any purpose. The information provided by using the ETHOS is not a communication from FMCSA, guidance, advisory opinion, pre-enforcement ruling, or other interpretation or application of law. Use of this ETHOS does not preclude enforcement or other actions by FMCSA based on violations discovered during roadside inspections, compliance reviews, or other inspections and investigations.
Educational Tool for Hours of Service (ETHOS)
Learn more by utilizing ETHOS with one of the three methods below.
Input your event by selecting date, time, and status
Select an example from the dropdown below
Load your ETHOS file