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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 FAQ 72: Electronic Logging Devices and Hours of Service – Technical Specifications FMCSA-HOS-ELD-TECH-395-FAQ72 ELD Guidance
When creating an ELD file as specified in Section 4.9.2, when a field specifies activities on a per‐CMV basis (such as engine power‐up and shut‐down activities), which records should be included? FMCSA-HOS-ELD-TECH-395-FAQ30 Electronic Logging Devices and Hours of Service – Technical Specifications
Regarding section 4.8.2.1.9 of 49 CFR part 395, subpart B, Appendix A, which power up and shut down events should be included? FMCSA-HOS-ELD-TECH-395-FAQ76(2017-09-01)-CORR1 ELD Guidance
How will FMCSA ensure that the ELD data is transferred securely? FMCSA-HOS-ELD-TECH-395-FAQ33 Electronic Logging Devices and Hours of Service – Technical Specifications
Why is there a reference to the internet in Bluetooth® transfer when it is part of the local transfer option? FMCSA-HOS-ELD-TECH-395-FAQ79(2017-09-01)-CORR1 ELD Guidance
Section 4.8.1.2 of 49 CFR part 395 subpart B, Appendix A requires that an electronic logging device (ELD) without a printer be designed so that “the display may be reasonably viewed by an authorized safety official without entering the commercial motor... FMCSA-HOS-ELD-TECH-395-FAQ55(2017-09-01)-CORR1 ELD Guidance
Can an electronic logging device (ELD) connect to the electronic control module (ECM) in a manner that relies on internet, Bluetooth® or another method of connectivity? FMCSA-HOS-ELD-TECH-395-FAQ82(2017-09-01)-CORR1 ELD Guidance
Can the driver’s license information be omitted or redacted from the printed logs? FMCSA-HOS-ELD-TECH-395-FAQ58(2017-09-01)-CORR1 ELD Guidance
ELD FAQ 85: Electronic Logging Devices and Hours of Service – Technical Specifications FMCSA-HOS-ELD-TECH-395-FAQ85 ELD Guidance
Section 4.8.1.3 of 49 CFR part 395, subpart B, Appendix A indicates that location needs to be displayed for login/logout events. However, section 4.5.1.5 lists required data elements for login/logout events and does not indicate that latitude and... FMCSA-HOS-ELD-TECH-395-FAQ59(2017-09-01)-CORR1 ELD Guidance