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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
Is this “mandatory information” that required of a normal RODS under section 395.8(d) or that of the 100 air-mile radius exemption under section 395.1(e)(5)? FMCSA-HOS-395.8-Q19 Hours of Service Records of Duty Status
Are automatic on-board recorders (AOBRDs) required to be designed and maintained to prevent team drivers in a non-driving duty status from making updates to their electronic record of duty status while the vehicle is in motion? FMCSA-ELD-HOS-395.15-Q04 When a non-driver may update their eROD
What is the duty status of a co-driver who is riding seated next to the truck driver? FMCSA-HOS-395.2-Q13 Hours of Service Definitions
When must a driver complete the signature/certification of the driver’s record of duty status? FMCSA-HOS-395.8-Q24 certification of RODS
How many statute miles are equivalent to 100-air-miles? FMCSA-HOS-395.1-Q12 Hours of Service Exceptions
Must a driver engaged in union activities affecting the employing motor carrier record such time as on-duty (not driving) time? FMCSA-HOS-395.2-Q16 Hours of Service Definitions
(395.8-Q20) FMCSA-HOS-395.8-Q20 RODS and the 100 air-mile radius exemption
May the time a driver spends attending safety meetings, ceremonies, celebrations, or other company-sponsored safety events be recorded as off-duty time? FMCSA-HOS-395.2-Q19 Hours of Service Definitions
May a driver operating a CMV under a lease arrangement with a motor carrier, after being placed out of service for an hours of service violation, cancel the lease and continue to operate the vehicle as a private personal conveyance? FMCSA-HOS-395.13-Q02 Lease arrangements and out of service declarations
A motor carrier relieves a driver from duty. What is a suitable facility for resting? FMCSA-HOS-395.2-Q22 Hours of Service Definitions