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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 information must be displayed on the electronic logging device (ELD) or provided on the ELD printout? FMCSA-HOS-ELD-TECH-395-FAQ64(2017-11-07)-CORR1 ELD Guidance
How do I register as a Clearinghouse Assistant? FMCSA-D&A-CLEAR-382.711-FAQ001 Guidance on how to register as a Clearinghouse Assistant
What can a Clearinghouse Assistant do? FMCSA-D&A-CLEAR-382-FAQ004 Clearinghouse FAQ
How do I purchase a query plan? FMCSA-D&A-CLEAR-382-FAQ030 Guidance on purchasing a Clearinghouse query plan
Who is a Clearinghouse Administrator? FMCSA-D&A-CLEAR-382-FAQ002 Guidance on who is a Clearinghouse Administrator
How are employers and consortia/third-party administrators (C/TPAs) required to use the Clearinghouse? FMCSA-D&A-CLEAR-382-FAQ015 Guidance on how employers and C-TPAs use the Clearinghouse
Who is authorized to use the Clearinghouse? FMCSA-D&A-CLEAR-382-FAQ010 Guidance on Clearinghouse Users
What happens if an employer or service agent submits false information to the Clearinghouse? FMCSA-D&A-CLEAR-382.723-FAQ001 Guidance stating that providing false information in the Clearinghouse is prohibited
If a driver has a drug and alcohol program violation in one State, then applies for a commercial driver’s license (CDL) in another State, will the Clearinghouse be able to connect that driver’s drug and alcohol violation history to the new CDL? FMCSA-D&A-CLEAR-382-FAQ032 Guidance on drivers with drug and alcohol program violations in multiple states
How do authorized users sign up to access the Clearinghouse? FMCSA-D&A-CLEAR-382.711-FAQ003 Guidance on Authorized User Registration