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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
A person is transported to a hospital from the scene of a commercial motor vehicle traffic accident. FMCSA-RG-390.5T-FAQ027-RESCINDED “Medical treatment” that triggers “accident” classification
If an employee admits to alcohol misuse or drug use, when is it appropriate for the employer to apply the exception in §382.121? FMCSA-D&A-382.121-FAQ002 Employee admission of alcohol and controlled substances use
If (1) a driver has a verified positive test result for controlled substances or an alcohol concentration of 0.04 or greater and (2) the driver subsequently obtains a verified negative result for controlled substances or a test result of less than 0.04 al FMCSA-D&A-382.503-FAQ001 Guidance on whether employer may accept subsequent test results
(FMCSA-D&A-CLEAR-382.711-FAQ004) FMCSA-D&A-CLEAR-382.711-FAQ004 Guidance on Staffing Agency registration in the Clearinghouse
Which drivers are to be included in a alcohol and controlled substances testing program under the Federal Motor Carrier Safety Administration’s (FMCSA) rule? FMCSA-D&A-382.103-Q07 Applicability of drug and alcohol testing requirements to drivers operating CMVs in commerce
Should a medical review officer (MRO) report a negative-dilute test result in the Clearinghouse? FMCSA-D&A-CLEAR-382.705-FAQ015 Guidance Clarifying that a negative-dilute RTD result should be reported as “negative”
How are bulk queries processed? FMCSA-D&A-CLEAR-382-FAQ006 Guidance on Bulk Query Processing
Can an employer, consortium/third-party administrator (C/TPA), or medical review officer (MRO) modify or delete violation information they have reported? FMCSA-D&A-CLEAR-382.705-FAQ006 Clearinghouse FAQ
How can I track the progress of my bulk queries? FMCSA-D&A-CLEAR-382-FAQ007 Guidance on Bulk Query Tracking
How does an employer or consortium/third-party administrator (C/TPA) submit a bulk query? FMCSA-D&A-CLEAR-382-FAQ022 Guidance on How to submit bulk query