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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
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 FMCSA-ELD-395-AOBRD-and-ELD-FAQ-RESCINDED ELD Guidance
Cross Border Transportation FAQs FMCSA-ELD-Cross-Border-Transportation-FAQs(2018-04-09)-CORR1-RESCINDED ELD Guidance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 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 FMCSA-BOR-HOS-ELD-395-FAQ003-RESCINDED Cross Border Transportation ELDs
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ELD FAQ 56:Electronic Logging Devices and Hours of Service – Editing and Annotations FMCSA-HOS-ELD-395-FAQ56-RESCINDED ELD Guidance
After the FMCSA receives my application, what will happen next? FMCSA-BOR-MX LONG-HAUL-FAQ005 Mexico-domiciled motor carrier long haul operations
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
Does the 100 air-mile radius exception apply to cross-border operations? FMCSA-BOR-ELD-395-FAQ007 Cross Border Transportation ELDs
What is the maximum driving time a CMV driver of property may drive in the United States? FMCSA-BOR-HOS-395-FAQ005 Cross-border hours-of-service requirements