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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
SAP Evaluation: Can employers or drivers seek a second substance abuse professional (SAP) evaluation if they disagree with the first SAP’s recommendations? FMCSA-D&A-40.295-FAQ001 Guidance for employers or drivers seeking a second SAP evaluation
Part 390 § 390.23 Relief from regulations An emergency declaration states that after completed work under the declaration and returning to normal operations, a commercial vehicle driver must take 10 hours off. What if there is nowhere at the location for FMCSA-RG-390.23-FAQ023 Emergency Declarations
Disruptions to Drug and Alcohol Testing Due to the Coronavirus Disease 2019 (2019) FMCSA-DA-COVID19-FAQ1 Disruptions to Drug and Alcohol Testing Due to the Coronavirus Disease 2019
Part 390 § 390.23 Relief from regulations Are loads that include supplies related to direct assistance under the emergency declaration mixed with other, un-related materials covered under an emergency declaration? FMCSA-RG-390.23-FAQ016 Emergency Declarations
Part 390 § 390.23 Relief from regulationsIs the driver required to use a paper logbook or ELD when providing direct assistance under an emergency declaration? FMCSA-RG-390.23-FAQ019 Emergency Declarations
Part 390 § 390.23 Relief from regulations What documentation is needed to verify that the driver is operating under an emergency declaration? FMCSA-RG-390.23-FAQ022 Emergency Declarations
Part 390 § 390.23 Relief from regulations Is a driver required to take a 30-minute break while providing direct assistance under an emergency declaration? FMCSA-RG-390.23-FAQ017 Emergency Declarations
Part 390 § 390.23 Relief from regulations If there is an ELD in the truck, what should a driver do to account for the miles driven under an emergency declaration? FMCSA-RG-390.23-FAQ020 Emergency Declarations
Part 390 § 390.23 Relief from regulations How do the hours a driver worked under an emergency exemption impact the 60/70-hour rule when the driver goes back to normal operations? FMCSA-RG-390.23-FAQ018 Emergency Declarations
Part 390 § 390.23 Relief from regulations What does a driver need to do when returning to normal operations after operating under an emergency declaration? FMCSA-RG-390.23-FAQ021 Emergency Declarations