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Regulatory Guidance

Welcome to the FMCSA Guidance Portal. This web portal is a searchable, indexed database that contains and links to all guidance documents in effect from the Federal Motor Carrier Safety Administration. The guidance documents lack the force and effect of law, unless expressly authorized by statute or incorporated into a contract.

To comment on any guidance document, or to request issuance, reconsideration, modification, or rescission of any guidance document in accordance with 49 CFR 5.41, send your request to: FMCSAguidance@dot.gov. Please identify the guidance document in your request.

Subject Agency Identifier Topic Issued Date
How may a driver using the sleeper berth provision obtain the off-duty time required by 395.3(a)(1)? FMCSA-HOS-2020-395-FAQ01 Hours of Service
May a driver use on-duty not driving time during a roadside inspection to satisfy the 30-minute break? FMCSA-HOS-2020-395-FAQ19 Hours of Service
When must a driver take a 30-minute break? FMCSA-HOS-2020-395-FAQ16 Hours of Service
If it only takes an hour for a driver to get through the adverse driving conditions, do they still get to use the full 2 hours of the exception? FMCSA-HOS-2020-395-FAQ13 Hours of Service
What if a driver is stopped for a roadside inspection after having taken only one rest period that qualifies for the split sleeper berth provision? FMCSA-HOS-2020-395-FAQ03 Hours of Service
A driver takes 5 consecutive hours off-duty and later takes a 7-hour consecutive break in the sleeper berth. How is this time calculated for HOS compliance? FMCSA-HOS-2020-395-FAQ06 Hours of Service
May a driver choose to use the sleeper berth provision some days and the other provisions of 49 CFR 395.1(g) other days? FMCSA-HOS-2020-395-FAQ09 Hours of Service
May the adverse driving conditions exception be used in concert with the revised short-haul provisions? FMCSA-HOS-2020-395-FAQ21 Hours of Service
Does the 30-minute break count against the 14-hour “driving window”? FMCSA-HOS-2020-395-FAQ18 Hours of Service
Are drivers required to annotate an adverse driving condition they encountered on their electronic logging device (ELD)? FMCSA-HOS-2020-395-FAQ15 Hours of Service