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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. FMCSA may not cite, use, or rely on any guidance that is not posted on this Guidance Portal, except to establish historical facts.

This Guidance Portal represents the exclusive source of guidance that the FMCSA has determined is in effect. In accordance with Executive Order 13891 and OMB Memorandum M-20-02, any previously issued guidance that does not appear in the Guidance Portal is considered rescinded and of no legal effect.

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: Please identify the guidance document in your request.

Subject Agency Identifier Topic Issued Date
May a driver use yard moves to satisfy the 30-minute break requirement? FMCSA-HOS-2020-395-FAQ20 Hours of Service
Does the 30-minute break have to be consecutive? FMCSA-HOS-2020-395-FAQ17 Hours of Service
May a driver use the adverse driving conditions provision even if the adverse conditions have cleared when the driver arrives at the location where the condition occurred? FMCSA-HOS-2020-395-FAQ14 Hours of Service
Are there any restrictions on how often the adverse driving conditions exception may be used? FMCSA-2020-395-FAQ12 Hours of Service
May a 10-consecutive hour off-duty period be paired with a subsequent qualifying 7+-consecutive hour sleeper berth period? FMCSA-HOS-2020-395-FAQ05-RESCINDED Hours of Service
Under the sleeper berth provisions, a driver takes 7 hours in the sleeper berth & later takes an off-duty period of 3 hours before arriving at home. When the driver arrives home within the permissible hours, what rest is req’d to reset their "day clock"? FMCSA-HOS-2020-395-FAQ08 Hours of Service
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