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
Must a motor carrier respond to a third-party administrator’s request (as directed by the specific, written consent of the driver authorizing release of the information on behalf of an entity such as a motor carrier) to release driver information that is FMCSA-D&A-382.413-Q04 Drug & Alcohol Testing – Third-Party Administrator’s Request for Testing Information from Previous Employer
What work may the driver perform for an employer, if a driver violates the prohibitions in subpart B? FMCSA-D&A-382.413-Q01 Drug & Alcohol Testing – Removal from Safety Sensitive Functions
A driver drives on streets and highways during the week and jockeys commercial motor vehicles in the yard (private property) on weekends. How is the yard time to be recorded? FMCSA-HOS-395.2-Q09 Hours of Service
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
Question 1: Who makes the determination, the driver or carrier, that conditions are sufficiently dangerous to warrant discontinuing the operation of a CMV? FMCSA-DRV-392.14-Q001 Hazardous conditions
Model Training Curriculum for Motorcoach Drivers FMCSA-PASS-MODEL TRAINING CURRICULUM FOR MOTORCOACH DRIVERS Motorcoach Driver Trainng
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
Risk Retention Groups established under the Liabity Risk Retention Act of 1986 FMCSA-FR-52FR11277.1987.04.08 Liability Insurance