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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
ELD FAQ 72: Canada & Mexico FAQ – Canada- US – Q2 FMCSA-HOS-ELD-395-FAQ72 ELD requirements for foreign-domiciled motor carriers
Will a Canada/Mexico domiciled motor carrier’s driver be required to use ELDs if they conduct drive-away/tow-away operations in the U.S. and the vehicle being driven is the commodity being delivered? FMCSA-BOR-HOS-ELD-395-FAQ008-RESCINDED Cross Border Transportation ELDs
ELD FAQ 71: ELDs Canada & Mexico FAQ – Technical Specifications – Q3 FMCSA-HOS-ELD-395-FAQ71-RESCINDED ELD requirements for foreign-domiciled motor carriers
What happens if cellular network limitations prevent an ELD from transferring data during a U.S. roadside inspection for a Canada/Mexico domiciled motor carrier’s driver? FMCSA-BOR-HOS-ELD-395-FAQ001 Cross Border Transportation ELDs
What must a Canada/Mexico domiciled motor carrier’s driver do if an ELD malfunction prevents presenting HOS to a safety official at roadside by electronic data transfer, display screen or printout? FMCSA-BOR-HOS-ELD-395-FAQ004 Cross Border Transportation ELDs
ELD FAQ 56:Electronic Logging Devices and Hours of Service – Editing and Annotations FMCSA-HOS-ELD-395-FAQ56-RESCINDED ELD Guidance
Is a Canada/Mexico domiciled motor carrier’s driver, who is exempt under the 100 air-mile radius exception, still exempt from using an ELD when entering the United States more than 8 times in a 30-day period? FMCSA-BOR-HOS-ELD-395-FAQ010 Cross Border Transportation ELDs
Can a Canada/Mexico-domiciled motor carrier’s driver manually enter the vehicle identification number (VIN) for the power unit if the ELD is unable to automatically retrieve the VIN from the engine? FMCSA-HOS-ELD-TECH-395-FAQ73(2018-03-05)-CORR1 ELD requirements for foreign-domiciled motor carriers
Does the 100 air-mile radius exception apply to cross-border operations? FMCSA-BOR-ELD-395-FAQ007 Cross Border Transportation ELDs
Must a Canada/Mexico domiciled motor carrier’s driver using an ELD in the United States have a printer in the CMV? FMCSA-BOR-HOS-ELD-395-FAQ002 Cross Border Transportation ELDs