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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, 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.

Subject Agency Identifier Topic Issued Date
How many times may a motor carrier relieve a driver from duty within a tour of duty? FMCSA-HOS-395.2-Q23 Hours of Service Definitions
Driver vehicle inspection report FMCSA-VM-396.11-Q015 Driver vehicle inspection report
Do the disqualification provisions of §391.15 apply to offenses committed by a driver who is using a company vehicle for personal reasons while off-duty? FMCSA-DQ-391.15-Q005 Driver disqualification
What is the applicability of the FMCSRs to motor carriers owning and operating school buses that contract with a municipality to provide pupil transportation services? FMCSA-RG-390.3T-Q014 Applicability of FMCSRs to school bus contractors
Is time spent operating controls in a CMV to perform an auxiliary, non-driving function (e.g., lifting a loaded container, compacting waste, etc.) considered driving time? FMCSA-HOS-395.2-Q26 Hours of Service Definitions
May time spent in resting or sleeping in motor homes being delivered be recorded as off-duty time? FMCSA-HOS-395.3-Q09 Hours of Service Maximum Driving Time
Do the definitions of "farm", "farmer" and "agricultural crops" apply to greenhouse operations? FMCSA-RG-390.5T-Q001 Applicability of farm-related definitions to greenhouse operations
May an operation that changes its normal work-reporting location on an intermittent basis utilize the 100-air-mile radius exemption? FMCSA-HOS-395.1-Q15 Hours of Service Exceptions
May a rubber stamp signature be used on a driver’s record of duty status? FMCSA-HOS-395.8-Q02 Hours of Service Records of Duty Status
Is the “mandatory information” referred to in the previous guidance that required of a normal RODS under section 395.8(d) that of the 100-air-mile radius exemption under section 395.1(e)(5)? FMCSA-HOS-395.1-Q17 Hours of Service Exceptions