USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

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
Question 14: If a company has several employees in follow-up testing, can those employees be placed into a follow-up random testing pool and selected for follow-up testing on a random basis? FMCSA-D&A-382.605-Q14 Drug & Alcohol Testing – Follow-up Testing
May the driver combine the two sleeper berth periods to meet the required 10 consecutive hours of off-duty time per §395.1(g), then drive for up to 11 more hours? FMCSA-HOS-395.1-Q27 Hours of Service Exceptions
If a CMV manufactured on or after July 25, 1980 (see § 393.42) has brake components on the front axle, and the brakes are not operable, does the vehicle comply with § 393.48? FMCSA-VEH-393.48-Q01 Is a post-1980 CMV with inoperable front brakes in compliance?
What standards under the FMCSRs must be met when a liquid fuel tank is repaired or replaced? FMCSA-VEH-393.67-Q03 Repairing/replacing liquid fuel tanks
Must an SAP evaluation be conducted in person or may it be conducted telephonically? FMCSA-D&A-382.605-Q1 Guidance on SAP evaluation
Driver Vehicle Inspection Reports FMCSA-VM-396.11-Q018 Driver vehicle inspection reports
How should multiple short stops in a town or city be recorded on a record of duty status? FMCSA-HOS-395.8-Q06 Hours of Service Records of Duty Status
Is the use of a printed or stamped signature on the Form MCS-90 endorsement acceptable? FMCSA-INS-387.15-Q003 Printed or Stamped Signature on MCS-90
May a motor carrier require fingerprinting as a pre-employment condition? FMCSA-RG-390.3T-Q009 Applicability of FMCSRs to school bus drivers
What is the meaning of ‘‘immediate’’ as used in the definition of ‘‘accident?’’ FMCSA-RG-390.5T-Q019 Meaning of “immediate” medical treatment after “accident”