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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
Does § 393.104(e) prohibit the use of securement devices for which manufacturing standards have not been incorporated by reference? FMCSA-RG-393.104Q01 Must carriers use only securement devices for which manufacturing standards have been incorporated by reference?
How will the SAP evaluation process differ if the employee is discharged by the employer rather than retained following a rule violation? FMCSA-D&A-382.605-Q5 Treatment of Discharged Employee
uestion 21: Is a DVIR required by a motor carrier operating only one tractor trailer combination? FMCSA-VM-396.11-Q021 Driver vehicle inspection reports
Is a travel trailer or motor home that has propane cylinders attached subject to part 387 of the FMCSRs? FMCSA-INS-387.3-Q009 Applicability of Part 387 to travel trailer or motor home with propane cylinders attached
Question 3: May a driver or other motor carrier employee be qualified as a brake inspector under § 396.25 by way of experience or training to perform brake adjustments without being qualified to perform other brake-related tasks such as the repair or repl FMCSA-VM-396.25-Q03.cm May a driver be qualified to perform brake adjustments, but not other tasks?
A motor carrier dispatches an empty CMV from State A into adjoining State B in order to transport cargo or passengers between two points in State B, and then to return empty to State A. Does the transportation of cargo or passengers within State B constit FMCSA-RG-390.3T-Q013 Interstate commerce involving transportation within a single State
Can a truck tractor drawing a trailer be a driveaway-towaway operation? FMCSA-RG-390.5T-Q023 Trailers in driveaway-towaway operations
Question 4: Would an alcohol test, performed by an employer pursuant to 49 CFR part 382, with a result greater than 0.00 BAC, but less than 0.02 BAC, establish that a driver was in violation of 49 CFR 392.5(a)(2), having any measured alcohol concentration FMCSA-DRV-392.5-Q004 Alcohol prohibition
Is a person employed by a nonmotor carrier in his normal duties considered an intermittent, casual, or occasional driver when employed by a motor carrier as a driver on apart-time basis? FMCSA-DQ-391.63-Q001 Multiple-employer drivers
Part 390 § 390.23 Relief from regulations Question 3 FMCSA-RG-390.23-Q003 Required off-duty time after providing emergency relief