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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 Training Checklist for Motor Carriers: Understanding Your Device FMCSA-HOS-ELD-TRAINING-395-FAQ1 ELD Guidance
Brochure provides overview of the hours-of-service rules for drivers of passenger-carrying commercial motor vehicles. FMCSA-HOS-PASS-395-PASSENGER CARRIER HOURS OF SERVICE BROCHURE Passenger Carrier Hours of Service
May the CDL knowledge test be administered by a third party? FMCSA-CDL-383.75-Q01-RESCINDED Commercial Driver License Standards; Third Party Testing
May a foreign driver with an employment authorization document obtain a CDL to operate a CMV in the United States? FMCSA-CDL-383.23-Q1-RESCINDED(2026-03-16) Commercial Driver License Standards; Foreign Driver Employment
Commercial Driver's License Standards, Requirements and Penalties; Notification of Updated Regulatory Guidance; Request for Comments, 84 Fed. Reg. 8464 FMCSA-FR-84FR8464-2019-03-08 Guidance for Commercial Drivers Licenses
Is a driver of a combination vehicle with a GCWR of less than 26,001 pounds required to obtain a CDL, if the trailer’s GVWR is more than 10,000 pounds? FMCSA-CDL-383.91-Q02 Commercial Driver License Standards; CDL Requirement for Less than 26,001 pounds
What CMV group is a driver of an articulated motorcoach (bus) with a GVWR of 26,001 pounds or more required to possess? FMCSA-CDL-383.91-Q04 Commercial Driver License Standards; Articulated Bus, CDL Type
May a State expand a vehicle group to include vehicles that do not meet the Federal definition of the group? FMCSA-CDL-383.91-Q01 Commercial Driver License Standards; State Expansion of Vehicle Group Types
Does the word “issuing” as used in § 383.73(b) include both temporary 60-day CDLs and permanent CDLs? FMCSA-CDL-383.73-Q03 Commercial Driver License Standards; CDL Issuance
Does “designed to transport” as used in the definition of a CMV in § 383.5 mean original design or current design when a number of seats are removed? FMCSA-CDL-383.5-Q1 Commercial Driver License Standards; Original Design