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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 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
Section 393.70(d) requires that every full trailer must be coupled to the frame FMCSA-VEH-393.70-Q03 Two sets of safety chains attached to draw bar
Are employers required to refer a discharged employee to an SAP? FMCSA-D&A-382.605-Q4 Treatment Requirements for Discharged Employee
Question 20: Is a multi-day DVIR acceptable under § 396.11 and 396.13? FMCSA-VM-396.11-Q020 Driver vehicle inspection reports
Is the Canadian bilingual or any other record of duty status form acceptable in the U.S.? FMCSA-HOS-395.8-Q07 Hours of Service Records of Duty Status
Applicability of FMCSRs when schools charge trip fees FMCSA-RG-390.3T-Q011 Applicability of FMCSRs when schools charge trip fees
Is a motor vehicle drawing a non-self-propelled mobile home that has one or more set of wheels on the roadway, a driveaway-towaway operation? FMCSA-RG-390.5T-Q022 Mobile homes in driveaway-towaway operations
Question 4: If a driver furnished by another motor carrier is in the second carrier’s service for a period of 7 consecutive days or more, may the driver still fall under the exemption in §391.65? FMCSA-DQ-391.65-Q004 Drivers furnished by other motor carriers
Question 3: Does the prohibition against carrying alcoholic beverages in §392.5 apply to a driver who uses a company vehicle, for personal reasons, while off-duty? FMCSA-DQ-392.5-Q003 Alcohol prohibition
Is a vehicle used to transport or tow an anhydrous ammonia nurse tank considered a CMV and subject to FMCSRs? FMCSA-RG-390.5T-Q002 Applicability of FMCSRs to vehicles towing nurse tanks