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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
If a company owns more than one motor carrier subject to the Federal Motor Carrier Safety Regulations, may the company use logs listing the names of all such motor carrier employers and require the driver to identify the carrier for which he or she drives FMCSA-HOS-395.8-Q18 Hours of Service Records of Duty Status
May an automatic on-board recording device use an algorithm to identify the location of each change in duty status relative to the nearest city, town, or village? FMCSA-ELD-HOS-395.15-Q03 AOBRD use of algorithm
Is the exemption contained in §395.1(f) concerning department store deliveries during the period from December 10 to December 25 limited to only drivers employed by department stores? FMCSA-HOS-395.1-Q23 Hours of Service Exceptions
How should time spent in transit on a ferry boat be recorded? FMCSA-HOS-395.2-Q12
When the driver’s duty status changes, do §§395.8(c) or 395.8(h)(5) require a description of on-duty not driving activities in the remarks section in addition to the name of the nearest city, town or village followed by the State abbreviation? FMCSA-HOS-395.8-Q23 Requirements for on-duty not driving descriptions
When one of these individuals has a second job with an interstate motor carrier and works a 24-hour shift for the fire/rescue/emergency services department, is all of the time spent during the shift considered on-duty time? FMCSA-HOS-395.2-Q29 Hours of Service Definitions
Must a motor carrier retain 100-air-mile driver time records at its principal place of business? FMCSA-HOS-395.1-Q14 Hours of Service Exceptions