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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
Cross Border Transportation FAQs FMCSA-ELD-Cross-Border-Transportation-FAQs(2018-04-09)-CORR1-RESCINDED ELD Guidance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 FMCSA-ELD-395-AOBRD-and-ELD-FAQ-RESCINDED ELD Guidance
Is Your Device Compliant? FMCSA-HOS-ELD-TECH-395-FAQ98 ELD Guidance
If a Canada/Mexico domiciled motor carrier’s vehicle registration for a CMV reflects a model year of 2000 or newer, but the engine plate or documentation from the manufacturer indicates that the engine is older than model year 2000, is the CMV exempt from FMCSA-BOR-HOS-ELD-395-FAQ011 Cross Border Transportation ELDs
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 FMCSA-BOR-HOS-ELD-395-FAQ008-RESCINDED Cross Border Transportation ELDs
Must a driver from Canada have a record of duty status available for inspection when operating a CMV in the United States? FMCSA-BOR-HOS-395-FAQ003 Cross-border hours-of-service requirements
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
Are there HOS regulations in the United States or Mexico that allow a driver to reset a maximum duty time period? FMCSA-BOR-HOS-395-FAQ007 Cross-border hours-of-service requirements
Can a Canada/Mexico-domiciled motor carrier’s driver use a portable ELD unit, smartphone, or other wireless device as an ELD when operating in the United States (U.S.)? FMCSA-HOS-ELD-TECH-395-FAQ74(2018-03-05)-CORR1 ELD requirements for foreign-domiciled motor carriers
Must a Canada or Mexico domiciled motor carrier use an ELD that (1) meets the U.S technical specifications and (2) is self-certified and registered with FMCSA to present hours of service when operating in the U.S.? FMCSA-BOR-HOS-ELD-395-FAQ003-RESCINDED Cross Border Transportation ELDs