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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
What are carriers required to do to obtain and keep a Hazardous Materials Safety Permit? FMCSA-HM-HMSP-385-FAQ006 Hazardous Materials Safety Permits
Are government entities covered under the Hazardous Materials Safety Permit Regulations? FMCSA-HM-HMSP-385-FAQ007 Hazardous Materials Safety Permits
Do the permitting requirements apply to materials that have subsidiary hazards that come under the materials list, even if their primary hazard does not? Example: A Flammable Liquid, Class 3, is a subsidiary poison inhalation hazard. FMCSA-HM-HMSP-385-FAQ010 Hazardous Materials Safety Permits
Where can I obtain the MCS-150B form? FMCSA-HM-HMSP-385-FAQ003 Hazardous Materials Safety Permits
Section § 391.41(b)(6): Driver Safety & Health-Medical Requirements. FMCSA-MED-391.41-Hypertension-FAQ001 hypertension standard
Section § 391.41(b)(11): Driver Safety & Health- Medical Requirements. FMCSA-MED-Hearing-FAQ001 : hearing standard
Regulatory Guidance on Hours of Service of Drivers Rest Break Requirement; Drivers Who Become Ineligible for the “Short-Haul” Exception During the duty Day, 78 FR 76757 FMCSA-FR-78FR76757.2013.12.19 HOS – Short haul Drivers – Extended workday – 30-minute break
Registration and Financial Security Requirements for Brokers of Property and Freight Forwarders, 78 FR 54720 FMCSA-FR-78FR54720.2013.09.05 Implementation of certain provisions of the Moving Ahead for Progress in the 21st Century Act - MAP–21
Transfers of Operating Authority Registration, 78 FR 52457 FMCSA-FR-78FR52457.2013.08.23 Transfers of Operating Authority
UFA Fine Assessment Version 4.0 Software; Calculating Amounts of Civil Penalties for Violations of Regulations, 78 Fed. Reg. 54365 FMCSA-FR-78FR54365.2013.09.03 Civil Penalties