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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
Are the operations of a church which provides bus tours to the general public for compensation subject to the FMCSRs as a for-hire motor carrier? FMCSA-RG-390.3T-Q003 Commercial bus tours provided by church
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
Are personnel involved in road testing CMVs across a State line subject to the FMCSRs? FMCSA-RG-390.3T-Q005 Applicability of FMCSRs to persons road testing CMVs
How does one distinguish between intra- and interstate commerce for the purposes of applicability of the FMCSRs? FMCSA-RG-390.3T-Q006 Interstate v. intrastate commerce
Are Red Cross vehicles/drivers subject to the FMCSRs? FMCSA-RG-390.3T-Q007 Applicability of FMCSRs to Red Cross vehicles
May a motor carrier require fingerprinting as a pre-employment condition? FMCSA-RG-390.3T-Q009 Applicability of FMCSRs to school bus drivers
Are the FMCSRs applicable to drivers/vehicles operated by a transit authority owned and operated by a State or a political subdivision of the State? FMCSA-RG-390.3T-Q010 Applicability of FMCSRs to State or local transit agencies
Applicability of FMCSRs when schools charge trip fees FMCSA-RG-390.3T-Q011 Applicability of FMCSRs when schools charge trip fees
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
What constitutes a “serious pattern” of violations? FMCSA-RG-390-SPECIALTOPICS-Q01 What is a “serious pattern” of violations?