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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
Is a motor carrier transporting liquefied petroleum gas (LPG) in any quantity required to have $1,000,000 or $5,000,000 of financial responsibility coverage? FMCSA-INS-387.9-Q002 Financial Responsibility requirements for a motor carrier carrying Liquefied Petroleum Gas
May a State require a higher level of financial responsibility coverage than is required by part 387? FMCSA-INS-387.25-Q001 State Financial Responsibility Requirements for passenger carriers
May a large corporation which has many wholly-owned subsidiaries have one policy of insurance for the parent corporation and maintain the policy and Form MCS-90B at the corporate headquarters? FMCSA-INS-387.31-Q001 Need for large corporation with many subsidiaries to have more than one insurance policy
How would the DVIR requirements apply to a driver who works two or more shifts in a single calendar day? FMCSA-VM-396.11-Q024 Driver vehicle inspection reports
Is a driver who possesses a valid commercial driver’s license (CDL) issued by their State of residence, but who is suspended by another State for reasons unrelated to the violation of a motor vehicle traffic control law, disqualified from operating a comm FMCSA-DQ-391.15-Q010 Driver disqualification
How does a student enrolled in a driver training school comply with the requirement to pass a road test? FMCSA-DQ-391.31-Q002 Road test
Question 2: Does the FMCSA have authority to enforce the safe loading requirements against a shipper that is not the motor carrier? FMCSA-DRV-392.9-Q002 Inspection of cargo and cargo securement
Do refrigeration units on tractor-trailer combinations fall within the exemption listed in part 325, subpart A of the Federal Motor Carrier Safety Regulations? FMCSA-NOISE-325.1-Q002 Motor Carrier Noise Emission Standards
Does the government exception in §390.3T(f)(2) apply to motor carriers doing business with the government? FMCSA-RG-390.3T-Q001 Government Exception application
Are the FMCSRs applicable to drivers and CMVs which transport tools, equipment, and supplies across State lines in a CMV? FMCSA-RG-390.3T-Q002 Applicability of FMCSRs to work trucks