USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

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
If the driver rejects unidentified driving, should that be displayed on the electronic logging device (ELD) for the roadside inspection view and output file view? FMCSA-ELD-395-Q052(2022-03-10) ELD Guidance
What is the commercial motor vehicle (CMV) power unit number? FMCSA-ELD-395-Q071(2022-03-10) ELD Guidance
Can an electronic logging device (ELD) provider pass the one-minute boot time rule by requiring the driver to power on the device (or an app) prior to starting the engine? FMCSA-ELD-395-Q055(2022-03-10) ELD Guidance
Can a mobile app and the vehicle engine communicate over a cellular network? FMCSA-ELD-395-Q034(2022-03-10) ELD Guidance
If the required electronic logging device (ELD) data from the electronic control module (ECM) is private and requires an agreement with the original equipment manufacturer (OEM) to obtain said data, are ELD providers required to enter an agreement with... FMCSA-ELD-395-Q058(2022-03-10) ELD Guidance
Record of Violations, 87 Fed. Reg. 13192 (March 9, 2022) FMCSA-FR-87FR13192(2022-03-09) Record of violations
ELDT theory training for the Class A and Class B CDL includes a unit of instruction covering whistleblower and coercion protections for CMV drivers. Are drivers protected from retaliation for reporting sexual harassment, sexual assault and threats of... FMCSA-ELDT-WHISTLEBLOWER-COERCION-FAQ01(2022-03-09) Entry-Level Driver Training – Whistleblower and Coercion Protections
Qualifications of Drivers; Vision Standard, 87 FR 3390 (Jan. 21, 2022) FMCSA-FR-87FR3390(2022-01-21) Driver Physical Qualification Standard for Vision
How do FMCSA’s ELDT regulations affect State-based training requirements? FMCSA-ELDT-380-Q027 Entry level Driver Training
Are drivers required to annotate an adverse driving condition they encountered on their electronic logging device (ELD)? FMCSA-HOS-2020-395-FAQ15 Hours of Service