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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 FAQ16: Electronic Logging Devices and Hours of Service FMCSA-HOS-ELD-395-FAQ016 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 FMCSA-ELD-395-AOBRD-and-ELD-FAQ-RESCINDED ELD Guidance
Cross Border Transportation FAQs FMCSA-ELD-Cross-Border-Transportation-FAQs(2018-04-09)-CORR1-RESCINDED ELD Guidance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
ELD FAQ 71: ELDs Canada & Mexico FAQ – Technical Specifications – Q3 FMCSA-HOS-ELD-395-FAQ71-RESCINDED ELD requirements for foreign-domiciled motor carriers
How will the U.S. ELD rule apply to a Canada/Mexico domiciled company operating a commercial rental truck in the United States? FMCSA-BOR-HOS-ELD-395-FAQ005 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
How does the “8 days within a 30-day period” ELD Exemption apply to Canada/Mexico domiciled motor carrier’s drivers when they are operating in the United States? FMCSA-BOR-HOS-ELD-395-FAQ006 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ELD FAQ 56:Electronic Logging Devices and Hours of Service – Editing and Annotations FMCSA-HOS-ELD-395-FAQ56-RESCINDED ELD Guidance
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