Glossary · updated October 18, 2026
DataQ Challenge
Also known as: Request for Data Review (RDR)
By Korey Sharp-Paar · Reviewed by the Fast Trucking Compliance team
Definition
DataQ is the FMCSA portal at dataqs.fmcsa.dot.gov where carriers and drivers can challenge inaccurate roadside-inspection violations and crash records. A successful DataQ challenge removes the violation from the carrier's SMS record, reducing the BASIC percentile impact. Common winning grounds: incorrect carrier identification, factually wrong violation citation, video or photographic evidence contradicting the report, or a clearly non-preventable crash. Each state assigns a DataQ coordinator who reviews the submission. Your State must decide the Initial Review within 21 days (the clock pauses if it asks you for more information). You can then request Reconsideration (21 days) and Final Review (45 days), each within 30 days of the prior decision. If the State asks for more information you have 14 days to respond. These stages apply to requests under FMCSA's rules effective September 18, 2026. Carriers should treat every roadside violation as a DataQ candidate and run the cost-benefit analysis quickly.
Authoritative source
Read more
CSA Scores & OOS RateHow FMCSA computes BASIC scores and what the out-of-service rate signals to brokers.
Related
DataQs challenge filingRelated terms
- CSA(Compliance, Safety, Accountability)
- Roadside Inspection
- Safety Measurement System (SMS)(SMS)