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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 Functions FAQs FMCSA-ELD-Functions-FAQs(2022-03-10) ELD Guidance
ELD Malfunctions and Data Diagnostic Events FAQs FMCSA-ELD-Malfunctions-Data-Diagnostics-FAQs(2022-03-10)-CORR1 ELD Guidance
ELD Data Transfer FAQs FMCSA-ELD-Data-Transfer-FAQs(2022-03-10) ELD Guidance
If a driver is permitted to use a commercial motor vehicle (CMV) for personal reasons, how must the driving time be recorded? FMCSA-HOS-ELD-395-FAQ62(2022-03-10) ELD Guidance
Are Canada- and Mexico-domiciled drivers required to use electronic logging devices (ELDs) when they are operating in the United States (U.S)? FMCSA-HOS-ELD-395-FAQ23(2022-03-10) ELD Guidance
ELD Registration and Certification FAQs FMCSA-ELD-Registration-and-Certification-FAQs(2022-03-10) ELD Guidance
Can a user edit or change automatically recorded driving time that has been recorded by an electronic logging device (ELD) to non-driving time? FMCSA-HOS-ELD-395-FAQ51(2022-03-10)-RESCINDED ELD Guidance
If a driver forgets to indicate the start of Personal Conveyance (PC) or Yard Moves (YM), can they later edit that automatically generated driving event to PC (Off Duty) or YM (On Duty Not Driving)? FMCSA-ELD-395-Q081(2022-03-10) ELD Guidance
Does the size requirement for print display listed in section 4.8.1.3(c)(1) of 49 CFR part 395 subpart B Appendix A also apply to the on-screen display? FMCSA-HOS-ELD-TECH-395-FAQ56(2022-03-10) ELD Guidance
Is the display required to be handed to the inspector outside of the vehicle? FMCSA-HOS-ELD-TECH-395-FAQ57(2022-03-10) ELD Guidance