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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
Can a carrier set parameters for yard moves via the technical specifications? FMCSA-ELD-395-Q073(2022-03-10) ELD Guidance
Can the partial vehicle identification number (VIN) value obtained from the controller area network bus be used for reporting? FMCSA-ELD-395-Q035(2022-03-10) ELD Guidance
In the ELD header, should miles driven reflect miles in the current commercial motor vehicle (CMV) or all CMVs that the driver has operated on the displayed date? What about Start End Odometer and Engine Hours? FMCSA-ELD-395-Q074(2022-03-10) ELD Guidance
Does the Electronic Logging Device (ELD) rule require that an ELD be able to both display electronically and print? FMCSA-ELD-395-Q037(2022-03-10) ELD Guidance
How should an electronic logging device (ELD) record a driver’s hours of service when operating in another country such as Canada? FMCSA-ELD-395-Q038(2022-03-10) ELD Guidance
When should a driver use paper logs or electronic logging software if an electronic logging device (ELD) malfunction occurs? FMCSA-ELD-395-Q039(2022-03-10) ELD Guidance
When creating an electronic logging device (ELD) file as specified in sections 4.9 of 49 CFR part 395, subpart B, Appendix A, which records should be included? FMCSA-ELD-395-Q075(2022-03-10) ELD Guidance
When a driver manually enters records into an electronic logging device (ELD) how must the ELD “Event Record Origin” be set? FMCSA-ELD-395-Q046(2022-03-10) ELD Guidance
When a driver edits an existing electronic logging device (ELD) record, how must the ELD “Event Record Origin” be set? FMCSA-ELD-395-Q045(2022-03-10) ELD Guidance
What is a motor carrier or driver required to do if they use two electronic logging devices (ELDs) that are not interoperable during a 7-day period? FMCSA-ELD-395-Q078(2022-03-10) ELD Guidance