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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
When are tow trucks subject to financial responsibility coverage? FMCSA-INS-387.3-Q003 Applicability of Financial Responsibility Requirements to Towing
May the motor carrier meet the financial responsibility requirements by aggregating insurance in layers? FMCSA-INS-387.15-Q001 Aggregation of insurance to meet financial responsibility requirements
Are the FMCSRs applicable to the rail movement of trailers and intermodal container chassis that previously or subsequently were moved by highway by a motor carrier in interstate commerce? FMCSA-RG-390.3T-Q004 Applicability of FMCSRs to rail movements of intermodal chassis
§391.2 General exemptions FMCSA-DQ-391.2-Q001 Driver qualification exemptions
Must a person who is injured in an accident and immediately receives treatment away from the scene of the accident be transported in an ambulance? FMCSA-RG-390.5T-Q018 Mode of transportation of persons injured in CMV accident
When a motor carrier receives a request for driver information from another motor carrier about a former or current driver, is it required to supply the requested information? FMCSA-DQ-391.23-Q001 Driver investigations and inquiries
May a motor carrier designate another person or organization to administer the road test? FMCSA-DQ-391.31-Q004 Road test
If a driver logs his/her duty status as “driving” but makes multiple short stops (each less than 15 minutes) for on-duty or off-duty activities, marks a vertical line on the grid for each stop, and records the elapsed time for each in the remarks section FMCSA-HOS-395.8-Q22 how to count non-driving activities against the driving limit
How should a random testing program be structured to account for the schedules of school bus or other drivers employed on a seasonal basis? FMCSA-D&A-382.305-Q03 How to structure random testing program to account for the schedules of school bus or other drivers employed who work on a seasonal basis
After what period of time may an employer remove a casual driver from a random pool? FMCSA-D&A-382.305-Q09 Guidance on when an employer may remove a casual driver from the random pool