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                RegulationsRegulatory 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, please identify the guidance document in your request and send it to: FMCSAguidance@dot.gov. NOTE: The FMCSAguidance mailbox is not intended to serve as a mailbox for general inquiries. For inquiries that go beyond the limited purpose of the FMCSAguidance mailbox, please call FMCSA's Information Line (800-832-5660) or visit FMCSA's "Contact Us" page to send your inquiry to the appropriate mailbox.KeywordsIssued Date from:Issued Date to:
       Subject
																								Agency Identifier
																								Topic
																								Issued DateWhat is a "qualifying rest break or sleeper berth period" under the definition of adverse driving conditions?
																																				FMCSA-HOS-2020-395-FAQ11
																																				Hours of Service
																																				November 19, 2020May 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
																																				November 19, 2020Under 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
																																				November 19, 2020If a driver takes 3 hours off-duty and then 10 consecutive hours in the sleeper berth, will the 3 hours count against the driver's 14-hour "driving window"?
																																				FMCSA-HOS-2020-395-FAQ07
																																				Hours of Service
																																				November 19, 2020A 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
																																				November 19, 2020May 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
																																				November 19, 2020How are split sleeper berth rest periods used in determining compliance with the 14-hour "driving window" rule?
																																				FMCSA-HOS-2020-395-FAQ04
																																				Hours of Service
																																				November 19, 2020What 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
																																				November 19, 2020What rest periods qualify for the split sleeper berth provision?
																																				FMCSA-HOS-2020-395-FAQ02
																																				Hours of Service
																																				November 19, 2020Are there any restrictions on how often the adverse driving conditions exception may be used?
																																				FMCSA-2020-395-FAQ12
																																				Hours of Service
																																				November 19, 2020

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