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 |
|---|---|---|---|
| Does the final rule change any of the existing drug and alcohol program requirements in Part 40? | FMCSA-D&A-CLEAR-382-FAQ028 | Guidance clarifying that there is no change to the existing Part 40 drug and alcohol program requirements | |
| What identifying number should be documented for drivers in the Clearinghouse? | FMCSA-D&A-CLEAR-382.705-FAQ005 | Guidance for using a driver’s CDL number and state of issuance in the Clearinghouse | |
| What violation and return-to-duty (RTD) information must employers report to the Clearinghouse? | FMCSA-D&A-CLEAR-382-FAQ016 | Guidance on Employer Violation and RTD Reporting | |
| How do owner-operators meet their Clearinghouse obligations? | FMCSA-D&A-CLEAR-382.705-FAQ010 | Guidance on how owner-operators meet their Clearinghouse obligations | |
| What information is a medical review officer (MRO) required to provide when reporting a determination or verification? | FMCSA-D&A-CLEAR-382.705-FAQ008 | Guidance on MROs Reporting Information to the Clearinghouse | |
| What is the Drug and Alcohol Clearinghouse (Clearinghouse) and what information does it contain? | FMCSA-D&A-CLEAR-382-FAQ008 | Guidance on what is the Drug and Alcohol Clearinghouse | |
| When must current and prospective employers conduct a query of a CDL driver’s information in the Clearinghouse? | FMCSA-D&A-CLEAR-382.701-FAQ008 | Guidance on When to Conduct Clearinghouse Queries | |
| How will CDL drivers be notified when information about them is added to the Clearinghouse? | FMCSA-D&A-CLEAR-382.707-FAQ001 | Guidance on Driver Notification | |
| What actions can CDL drivers take in the Clearinghouse? | FMCSA-D&A-CLEAR-382.709-FAQ002 | Guidance on what actions CDL drivers can take in the Clearinghouse | |
| When will an employer be notified of changes to a driver’s Clearinghouse record? | FMCSA-D&A-CLEAR-382.701-FAQ002-RESCINDED | Guidance on when an employer will be notified of changes to a driver’s Clearinghouse record |