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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
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
Are drivers required to be dedicated permanently to the oilfield industry? FMCSA-HOS-395.1-Q09 Hours of Service Exceptions
Question 19: What arrangement for SAP services would be acceptable in geographical areas where no qualified SAP is readily available? FMCSA-D&A-382.605-Q19 Drug & Alcohol Testing – SAP In-person Evaluation
When a driver experiences a delay on an impassable highway, should the time he/she is delayed be entered on the record of duty status as driving time or on-duty (not driving)? FMCSA-HOS-395.2-Q25 Hours of Service Definitions
When two safety chains are used, must the ultimate combined breaking strength of each chain be equal to the gross weight of the towed vehicle(s) or would the requirements be met if the combined breaking strength of the two chains is equal to the gross wei FMCSA-VEH-393.70-Q02 Required strength of safety chains