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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
How should I secure the accessories for an item of construction equipment which weighs 4,536 kg (10,000 lb.) or more, if the accessory devices would extend beyond the width of the trailer if they are lowered to the deck for transport? FMCSA-RG-393.130Q02 How should the overwidth accessories of construction equipment be secured?
A tractor loader-backhoe weighing over 10,000 pounds is being transported on a trailer. FMCSA-VEH-393.130-Q03 Securing a backhoe and accessories to the trailer
Are cross members of CMVs considered part of the frame? FMCSA-VEH-393.201-Q01 Are cross members part of the CMV frame?
Must an SAP evaluation be conducted in person or may it be conducted telephonically? FMCSA-D&A-382.605-Q1 Controlled Substances and Alcohol Use and Testing, Referral, Evaluation, Treatment
Must an SAP evaluation be conducted in person or may it be conducted telephonically? FMCSA-D&A-382.605-Q1 Guidance on SAP evaluation
Are employers required to provide intervention and treatment for drivers who have a substance abuse problem or only refer drivers to be evaluated by an SAP? FMCSA-D&A-382.605-Q2 Guidance on Providing Treatment for Substance Abuse
Under the DOT rules, must an SAP be certified by the DOT in order to perform SAP functions? FMCSA-D&A-382.605-Q3 SAP Certification Rules
Are employers required to refer a discharged employee to an SAP? FMCSA-D&A-382.605-Q4 Treatment Requirements for Discharged Employee
How will the SAP evaluation process differ if the employee is discharged by the employer rather than retained following a rule violation? FMCSA-D&A-382.605-Q5 Treatment of Discharged Employee
Do community lectures and self-help groups qualify as education and/or treatment? FMCSA-D&A-382.605-Q6 Community Groups and Self-Help as Treatment