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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
How is the “source of the agricultural commodities” determined if the driver makes multiple pick-ups of the commodity en route to the final destination? FMCSA-HOS-AG-395.1-Q37 Agricultural guidance
ELD FAQ16: Electronic Logging Devices and Hours of Service FMCSA-HOS-ELD-395-FAQ016 ELD Guidance
If a driver subject to the Electronic Logging Device (ELD) rule is stopped for a roadside inspection and does not have a required ELD installed and in use in the vehicle being operated, what will happen? FMCSA-ELD-395-Q16(2018-05-04)-CORR1 ELD Guidance
What are the differences in the technical specifications in the 1988 automatic onboard recording device (AOBRD) Rule (49 CFR 395.15) and the Electronic Logging Device (ELD) rule? FMCSA-ELD-395-AOBRD-and-ELD-FAQ-RESCINDED ELD Guidance
Cross Border Transportation FAQs FMCSA-ELD-Cross-Border-Transportation-FAQs(2018-04-09)-CORR1-RESCINDED ELD Guidance
Is Your Device Compliant? FMCSA-HOS-ELD-TECH-395-FAQ98 ELD Guidance
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
For drivers transporting property, are there differences between Canadian and U.S. HOS regulations for driving after on-duty time? FMCSA-BOR-HOS-395-FAQ008 Cross-border hours-of-service requirements
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
Are Canadian Armed Forces exempt from the Federal Motor Carrier Safety Regulations (FMCSRs), including the ELD requirements, if they have proper documentation when operating in the United States? FMCSA-HOS-ELD-395-FAQ71 ELD requirements for foreign-domiciled motor carriers