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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: 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
Are Canada/Mexico domiciled motor carriers that operate in the United States (U.S.) eligible to use the exemptions for “covered farm vehicles” under 49 CFR 395.1(s), as defined in § 390.5, including the exemption from the hours of service rules and... FMCSA-ELD-395-Q043(2022-03-10) ELD Guidance
During an investigation, how should the header section reflect electronic logging device (ELD) data? FMCSA-HOS-ELD-TECH-395-FAQ73(2022-03-10) ELD Guidance
If a driver makes an error, can that record be deleted? FMCSA-ELD-395-Q065(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
If a Canada/Mexico-domiciled company with a terminal in the United States dispatches a driver from one of its Canada/Mexico locations to move a vehicle to its U.S. terminal for use in the U.S., is the vehicle move considered a drive-away/tow-away ... FMCSA-BOR-HOS-ELD-395-FAQ009(2022-03-10) ELD Guidance
Can a driver edit their ELD data after leaving the vehicle? FMCSA-ELD-395-Q026(2022-03-10) ELD Guidance
What is the responsibility of the carrier and driver pertaining to electronic logging device (ELD) diagnostic events or malfunctions that do not interfere with the accurate recording of hours of service? What would the documentation requirements be in... FMCSA-ELD-395-Q047(2022-03-10) ELD Guidance
ELD Malfunctions and Data Diagnostic Events FAQs FMCSA-ELD-Malfunctions-Data-Diagnostics-FAQs(2022-03-10)-CORR1 ELD Guidance
In 49 CFR part 395, subpart B, Appendix A Table 6, Event Type 3, it lists “Driver indication for PC, YM, and WT cleared.” What does WT refer to? FMCSA-ELD-395-Q068(2022-03-10) ELD Guidance
In an electronic logging device (ELD) with multiple components, which component must generate the event identifier sequence number? FMCSA-ELD-395-Q080(2022-03-10)-RESCINDED ELD Guidance