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Frequently Asked Questions (FAQS)
Find answers to questions about FMCSA's Compliance, Safety, Accountability (CSA) program, policies, and procedure to help everyone Get Road Smart about safety compliance.
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1. How can motor carriers, drivers, and other stakeholders request a review or correction of data in the Safety Measurement System?
The Federal Motor Carrier Safety Administration (FMCSA) has developed a specific mechanism to facilitate data reviews. Requests for data reviews (RDRs) can be made through the DataQs system, an electronic filing system that motor carriers, drivers, and the public use. The first step is to register either at the DataQs website (https://dataqs.fmcsa.dot.gov/), or via the FMCSA Portal. Instructions for filing an RDR are provided, and include simple forms and the submission of information such as the report number, date, and time of the event, State, explanation, and supporting documentation, if needed. Once filed, the RDR and all relevant documentation are routed to the organization responsible for the data, and electronic correspondence is used to communicate with the requestor. The DataQs website is open to the public and offers an online help function to walk users through the process.
Please Note: A carrier can modify registration information (e.g., name, address, or Power Unit data) by updating the MCS-150 form.
